From glwells at yahoo.com  Wed May  2 20:17:31 2012
From: glwells at yahoo.com (Gary Wells)
Date: Wed, 2 May 2012 17:17:31 -0700 (PDT)
Subject: [HBR] Drilling templates for the HBR 16
In-Reply-To: <CAGjW3etfb5Uurk4bkUt3b_R5DjCCcjOh5YjGe0QfkgqK=Wk0BA@mail.gmail.com>
References: <CAGjW3etfb5Uurk4bkUt3b_R5DjCCcjOh5YjGe0QfkgqK=Wk0BA@mail.gmail.com>
Message-ID: <1336004251.66221.YahooMailNeo@web161902.mail.bf1.yahoo.com>

James, If you decide to pursue the HBR-13C I do have the templates for the front panel and the chassis.

Gary
WB9AYD


________________________________
 From: James Lee <scriviamo at gmail.com>
To: hbr at mailman.qth.net 
Sent: Saturday, April 28, 2012 3:14 AM
Subject: [HBR] Drilling templates for the HBR 16
 
Your HBR group looks most interesting, and if enough information is
available,? I thought this might be a good candidate for my very last
receiver.? As in any undertaking, one has to start from the foundation and
go from there. So I'm wondering where or from whom I might be able to
obtain? the chassis and panel templates mentioned on your webpage.

Incidentally, there might be some problem on the registration page...I
can't get it to accept any input..I would like to join up.

Best regards,
James A. Lee? KF6K
______________________________________________________________
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From w4thq at cox.net  Thu May  3 10:54:25 2012
From: w4thq at cox.net (w4thq at cox.net)
Date: Thu, 3 May 2012 10:54:25 -0400
Subject: [HBR] Fluke Line Cord needed
Message-ID: <20120503105425.OXRR1.703861.imail@eastrmwml108>

I have acquired a Fluke Model 893A Differential Voltmeter that is missing the line cord.  According to the manual it is a Miller Electric number 2270.  It is similar to line cords for various computers except the end that plugs into the meter has round pin sockets instead of the standard blade type.  I have used all kinds of searches for this type of cord but no luck so far.

Anyone familiar with a source for this cord?

Thanks, John  W4THQ

From daileyservices at qwest.net  Thu May  3 11:01:45 2012
From: daileyservices at qwest.net (TC Dailey)
Date: Thu, 3 May 2012 09:01:45 -0600
Subject: [HBR] Fluke Line Cord needed
References: <20120503105425.OXRR1.703861.imail@eastrmwml108>
Message-ID: <AF1AD014006040778A8CCF0FC8FAB0A7@w0eaj>

I have seen similar cords on "early" business machines (printing cakulators, 
et. al.) & Audio-Visual stuff

Tom - Denver 


From jlandrigan at pol.net  Thu May  3 11:57:33 2012
From: jlandrigan at pol.net (John Landrigan)
Date: Thu, 3 May 2012 11:57:33 -0400
Subject: [HBR] Drilling templates for the HBR 16
In-Reply-To: <CAGjW3etfb5Uurk4bkUt3b_R5DjCCcjOh5YjGe0QfkgqK=Wk0BA@mail.gmail.com>
Message-ID: <505110460.1260271336060653198.JavaMail.root@zmcs02l-pol-08.portal.webmd.com>

Hello James and welcome to the group.
I have been trying to get an HBR 16 off the ground for quite awhile. Right now I can't get the first mixer to reliably output a 100 KHz signal from the 1600 KHz T1 and the 1700 KHz xtal oscillator. The gimmick capacitor between the 1700 KHz oscillator and the mixer input just won't work. I was very fortunate a while back to receive a whole slew of information and an HBR layout from Lee Craner who is on the list and I think is mentioned on the HBR website. It would be a week or so, but I could duplicate what he has sent me if you would like.
Also, it would be great if the HBR 13 template could be made available.
There is so much variability in layout that a template may not be all that helpful, however. If you do not have any expected access to the Eddystone dial much of the layout issue goes away. The size of the dial often mandated placement of the chassis components and through panel knobs.
I think I would make up my own layout sketched out on large white sheets of butcher paper and dry fit everything from that into quarter inch thick carboard or foamcore first. Punching aluminum should be the last thing, especially the front panel. I say this because I have built my rig on a series of fabricated 3 inch by 4 or 5 inch separate chasses. Each requires its own power supply, ground and filament leads to a molex plug plus whatever is needed to interconnect - AVC, T2 plate to 1st mixer plate, etc. At this point I don't think this is such a good idea of modularization.
If I can get past the 1st mixer I should be ok since the downstream items, especially the audio amp seem to be working ok.
John KA4RXP
----- Original Message -----
From: "James Lee" <scriviamo at gmail.com>
To: hbr at mailman.qth.net
Sent: Saturday, April 28, 2012 2:14:51 AM GMT -06:00 US/Canada Central
Subject: [HBR] Drilling templates for the HBR 16

Your HBR group looks most interesting, and if enough information is
available,  I thought this might be a good candidate for my very last
receiver.  As in any undertaking, one has to start from the foundation and
go from there. So I'm wondering where or from whom I might be able to
obtain  the chassis and panel templates mentioned on your webpage.

Incidentally, there might be some problem on the registration page...I
can't get it to accept any input..I would like to join up.

Best regards,
James A. Lee  KF6K
______________________________________________________________
HBR mailing list
Home: http://mailman.qth.net/mailman/listinfo/hbr
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:HBR at mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html



From kjlopez at earthlink.net  Thu May  3 12:08:52 2012
From: kjlopez at earthlink.net (Ken Lopez)
Date: Thu, 3 May 2012 09:08:52 -0700
Subject: [HBR] Fluke Line Cord needed
In-Reply-To: <20120503105425.OXRR1.703861.imail@eastrmwml108>
References: <20120503105425.OXRR1.703861.imail@eastrmwml108>
Message-ID: <5D0A313A-A8FF-4A3B-9931-1CD180D66A87@earthlink.net>

Sounds like the AC cord on my older Tektronix scope. A surplus house such a Apex in LA would likely have 'em by the bushel.

Ken

On May 3, 2012, at 7:54 AM, <w4thq at cox.net> wrote:

> I have acquired a Fluke Model 893A Differential Voltmeter that is missing the line cord.  According to the manual it is a Miller Electric number 2270.  It is similar to line cords for various computers except the end that plugs into the meter has round pin sockets instead of the standard blade type.  I have used all kinds of searches for this type of cord but no luck so far.
> 
> Anyone familiar with a source for this cord?
> 
> Thanks, John  W4THQ
> ______________________________________________________________
> HBR mailing list
> Home: http://mailman.qth.net/mailman/listinfo/hbr
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:HBR at mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html

From w0ep at w0ep.us  Thu May  3 13:11:13 2012
From: w0ep at w0ep.us (Chris Howard w0ep)
Date: Thu, 03 May 2012 12:11:13 -0500
Subject: [HBR] HPR 16 on ebay
Message-ID: <4FA2BC31.7040902@w0ep.us>


Doing a bit of snooping around on ebay.

N0XE in Souix City, IA has an HBR-16
w/Eddystone dial for sale that looks pretty nice.
Only one set of coils though.

Check out the auction for the photos if nothing else.


My HBR project is a bit stuck at the moment.
My pile of parts is looking pretty good.
I need to buy a couple of tubes.
But I really don't have an excuse for not
getting started with the power supply and BFO.

I was hesitating between the -16 and the -13.
My inclination at the moment is to do the -16.
I have more of the tubes on hand for that one.

Chris
w0ep
Columbus, MS



From waltah at earthlink.net  Thu May  3 14:17:29 2012
From: waltah at earthlink.net (Walt Hutchens)
Date: Thu, 03 May 2012 14:17:29 -0400
Subject: [HBR] HPR 16 on ebay
In-Reply-To: <4FA2BC31.7040902@w0ep.us>
Message-ID: <CBC843F8.FC71%waltah@earthlink.net>

Chris said:

> I was hesitating between the -16 and the -13.
> My inclination at the moment is to do the -16.
> I have more of the tubes on hand for that one.

http://www.tubesandmore.com

Has nearly every tube that was at all common.   And the prices are cheap
compared to the rest of the stuff.

I'd suggest the -13: It was improved in several ways compared to the earlier
versions.

Walt 
KJ4KV


From daileyservices at qwest.net  Thu May  3 13:24:29 2012
From: daileyservices at qwest.net (TC Dailey)
Date: Thu, 3 May 2012 11:24:29 -0600
Subject: [HBR] HPR 16 on ebay
References: <4FA2BC31.7040902@w0ep.us>
Message-ID: <24488BEBB1DC46D082B719015BC7AA01@w0eaj>

I got my HRO-60 from him (same estate)... he sent me pictures and it does 
look good - I tried to buy it FIRST, but the widow is convinced that it'll 
bring more on E bite.  Time will tell

Tom - W0EAJ 


From whitebear1122 at comcast.net  Thu May  3 14:02:17 2012
From: whitebear1122 at comcast.net (whitebear1122 at comcast.net)
Date: Thu, 3 May 2012 18:02:17 +0000 (UTC)
Subject: [HBR] HPR 16 on ebay
In-Reply-To: <4FA2BC31.7040902@w0ep.us>
Message-ID: <778582471.19032.1336068137865.JavaMail.root@sz0139a.emeryville.ca.mail.comcast.net>



Yeah I know what you mean about the difficulty trying to figure out which HBR to build.? I vacillated between the 16, 11, 12, 13, flip flopping all over the place.? At first I thought about doing the 16 because it might be easier for me to wire.? I've never built anything this complicated.? Since then I decided on the HBR-12 based on my own gut feel and comments from others including Ted Crosby.? I came across?a comment in one of the Stewart or Crosby articles?where Ted?was answering this question of?which receiver was the better one to build.? He response was that the?HBR-11 was superior to the HBR-16 and he would recommend building the 11.? 



? Ultimately I want to build an HBR-13 but I think I'm going to need some construction experience before tacking that complicated of of a receiver, so I decided on the HBR-12.? I have most of the parts now .? I recently acquired a? Byers Chassis Kit for the main? and sub chassis (for the Eddystone dial version), and just need to buy some small boxes for the BFO and HF oscillator.? My HBR project? will probably not start until Fall.? I'm just at the tail end of a major radio sell off where I've sold 70% of my stuff.? That has taken up all of my radio time this past year. 



73, Scott WA9WFA 


From bcarling at cfl.rr.com  Sun May  6 07:54:26 2012
From: bcarling at cfl.rr.com (Bry Carling)
Date: Sun, 06 May 2012 07:54:26 -0400
Subject: [HBR] FS: Carbon Composition Reisstor Packs
Message-ID: <4FA66672.259.31083A@bcarling.cfl.rr.com>

Hi guys,

A lot of people asked me for some more of these resistors and I
found some.

As of right now, I have found 6 more assortments of New 2 Watt Carbon
Composition Resistors (50 in each.) 
I have 3 more packs of the 1 Watt carbon composition resistors (50 in
each.) 
and I have another 8 packs of the 1/2 Watt composition resistors (100 in
each.) 

I have posted these on my web pages for easy purchase for whomever would
like some.
2W - $15 each
1W - $10 each
1/2W - $8 each 
For anyone who buys 2 or more of these I will throw in a surprise pack of
50 - 100 new 
resistors of my choice. FYI - one or two of the  2 watt resistor packs
might contain a couple of 
good used looking resistors or shorter lead ones but you won't be
disappointed.

http://af4k.com/resistors.htm

There are also some very excellent, useful power resistors and bleeder
resistors etc. at that link.

Thanks for looking & 73 - Bry AF4K
321-262-5471


From bcarling at cfl.rr.com  Sun May  6 09:34:02 2012
From: bcarling at cfl.rr.com (Bry Carling)
Date: Sun, 06 May 2012 09:34:02 -0400
Subject: [HBR] FS: New HV Capacitors 10c - 35c each
Message-ID: <4FA67DCA.23581.8C3796@bcarling.cfl.rr.com>

NEW Mallory and Sprague, USA-made HV Disk ceramic capacitors:
(These are all brand new, prime quality USA parts),  Most are RMC = Mallory

CAPACITANCE - VOLTAGE - Price each
8.2 pF 20% at 1KV Sprague Temp Stable - QTY 4 - $0.20 each
22 pF 10% - 3KV - RMC Type - QTY 1 - $0.25 each
75 pF 10% -at 1KV - N150 - QTY 10 - $0.20 each
82 pF 5% - 1KV - RMC Type NPO - QTY 6 - $0.25 each
82 pF 5% - 1KV - RMC Type N750 - QTY 2 - $0.20 each
82 pF 5% - 1KV - RMC Type N1500 - QTY 2 - $0.20 each
200 pF at 1KV  5%  - RMC Type N750 - QTY 1 - $0.20
200 pF 5% at 1KV RMC type JF200 - QTY 1 - $0.15 each
200 pF 5% at 1KV type NPO - QTY 5 - $0.25 each
360 pF 10% - 1KV - RMC Type - QTY 5 - $0.20 each
400 pF 10% - 1KV - RMC Type - QTY 8 - $0.20 each
600 pF 10% at 1KV - RMC - QTY 9 - $0.20 each
750 pF 10% at 1KV Sprague Temp Stable - QTY 4 - $0.20 each
750 pF 10% - 1KV - RMC Type - QTY 4 - $0.20 each
Dual 1500 pF 20% at 2KV in one package type Z5U  - QTY 5 $0.15 each
Dual 3000 pF 20% at 2KV in one package type Z5U  - QTY 5 - $0.15 each
0.005 uF at 500 V +80/-20% - Type Z5U - QTY 1 $0.15
7500 pF (= 0.0075 uF)   20% at 500V  - QTY 15 - $0.15 each
0.02 uF 10% at 100V  RMC - QTY 1 - $0.10 each
0.02 uF at 100V +80/-20% RMC - QTY 12 - $0.15 each
0.02 uF at 1400 V 20% - Type Z5U - QTY 1 $0.30

Also some Tubular Capacitors:
Elmenco 0.1 uF at 600V DC and 0.5 uF at 200V DC
These are 35c and 25c each

You can purchase all of the above at web page:

http://af4k.com/capacitors.htm

Thanks & 73 de AF4K, Bry




From w0ep at w0ep.us  Sun May  6 14:29:29 2012
From: w0ep at w0ep.us (Chris Howard w0ep)
Date: Sun, 06 May 2012 13:29:29 -0500
Subject: [HBR] about resistors
In-Reply-To: <4FA66672.259.31083A@bcarling.cfl.rr.com>
References: <4FA66672.259.31083A@bcarling.cfl.rr.com>
Message-ID: <4FA6C309.8070503@w0ep.us>


That brings up a good point in my mind:

being more-or-less new to tube circuit building,
how does a person figure out what size resistors
go in what position?

For examples:
1) a signal-series grid resistor?
2) a grid-leak resistor?
3) a cathode resistor?
4) a voltage drop resistor on B+ to a plate or screen?

Do you generally use a rule-of-thumb, do you calculate
it out, or maybe you look for indications on the schematic
or in a similar circuit?






On 5/6/2012 6:54 AM, Bry Carling wrote:
> Hi guys,
>
> A lot of people asked me for some more of these resistors and I
> found some.

From tshoppa at wmata.com  Sun May  6 15:24:26 2012
From: tshoppa at wmata.com (Shoppa, Tim)
Date: Sun, 6 May 2012 15:24:26 -0400
Subject: [HBR] about resistors
In-Reply-To: <4FA6C309.8070503@w0ep.us>
References: <4FA66672.259.31083A@bcarling.cfl.rr.com>,
	<4FA6C309.8070503@w0ep.us>
Message-ID: <B136EDE3DF5EC441B6F08E0A7AB87245145D774B6B@EX2K7-CMS-1.wmata.local>

For ordinary class A amplifiers in ordinary applications, looking in the tube handbook will get you 90% of the way there.

e.g. for 6SN7 or 12AU7 triode go to http://tdsl.duncanamps.com/show.php?des=6SN7GT

Pick a typical RCA datasheet e.g. http://www.tubezone.net/pdf/6sn7.pdf

For grid see the entry called "Grid Circuit Resistance = max 2.2 Megohms". You can use (probably want to use) a lower resistance if the previous stage can drive it.

For cathode resistance, note the recommended class A 250V B+ parameters of plate current circa 9mA and recommended grid voltage -8V. Neither of those specs have the word "cathode" in it but there's easy math: the 9mA of plate current is exactly the same as 9mA of cathode current. To drop 8 V (the negative of the grid voltage) across the cathode resistor you want 8V/0.009A = 890 ohms of resistance in the cathode current. Really anything vaguely like 1K ohms will do fine.

For a RF or small signal AF stage, the decoupling resistor (maybe this is what you mean "voltage drop resisistor") should be small compared to the plate resistance but large enough to effectively decouple. Large enough depends on the decoupling capacitor too. Stages near the "output" of a chain get lower decoupling resistors (as low as 100 ohms) and stages near the "input" of the chain get larger decoupling resistors (say 10K). The scale is set roughly by the plate current. If the decoupling requirements aren't too hairy, a 1K or a few hundred ohms works great. Note that typical plate current of 10mA through a 1K ohm resistor is a drop of only 10V, quite reasonable in a circuit with a few hundred V B+.

For screen tubes which don't have some babysitting system like voltage regulator tubes for the screens, data sheet will have recommendations that hardly can be improved on.

In a resistance coupled audio amplifier, it's very hard to go wrong just by copying the recommendations of the manufacturer. e.g. RCA charts at http://www.tubezone.net/pdf/rcachart.pdf

Realistically very few of the resistances in a typical class A tube circuit bias system are all that critical. Double the cathode resistance and usually the plate current shifts only drops 40% or less, because the grid bias changes to help counteract. Change the decoupling resistor by a factor of two and the plate voltage just drops a little bit. etc.

Now when it comes to mixers... oscillators... etc.... things get more complicated but not all that much. Most of those start out as class A stages which are manipulated or driven to saturation to get desired nonlinearities.

Tim N3QE


________________________________________
From: hbr-bounces at mailman.qth.net [hbr-bounces at mailman.qth.net] On Behalf Of Chris Howard w0ep [w0ep at w0ep.us]
Sent: Sunday, May 06, 2012 2:29 PM
To: hbr at mailman.qth.net
Subject: [HBR] about resistors

That brings up a good point in my mind:

being more-or-less new to tube circuit building,
how does a person figure out what size resistors
go in what position?

For examples:
1) a signal-series grid resistor?
2) a grid-leak resistor?
3) a cathode resistor?
4) a voltage drop resistor on B+ to a plate or screen?

Do you generally use a rule-of-thumb, do you calculate
it out, or maybe you look for indications on the schematic
or in a similar circuit?






On 5/6/2012 6:54 AM, Bry Carling wrote:
> Hi guys,
>
> A lot of people asked me for some more of these resistors and I
> found some.
______________________________________________________________
HBR mailing list
Home: http://mailman.qth.net/mailman/listinfo/hbr
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:HBR at mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

From w0ep at w0ep.us  Sun May  6 16:31:12 2012
From: w0ep at w0ep.us (Chris Howard w0ep)
Date: Sun, 06 May 2012 15:31:12 -0500
Subject: [HBR] about resistors
In-Reply-To: <B136EDE3DF5EC441B6F08E0A7AB87245145D774B6B@EX2K7-CMS-1.wmata.local>
References: <4FA66672.259.31083A@bcarling.cfl.rr.com>,
	<4FA6C309.8070503@w0ep.us>
	<B136EDE3DF5EC441B6F08E0A7AB87245145D774B6B@EX2K7-CMS-1.wmata.local>
Message-ID: <4FA6DF90.1090906@w0ep.us>

That was very helpful!

I didn't communicate very well, in that I was also
(or mostly) interested in the wattage of the resistors.

If you have similar info for wattage,
that would be really great!


Chris






From wrcromwell at gmail.com  Sun May  6 16:37:55 2012
From: wrcromwell at gmail.com (Bill Cromwell)
Date: Sun, 06 May 2012 16:37:55 -0400
Subject: [HBR] about resistors
In-Reply-To: <4FA6DF90.1090906@w0ep.us>
References: <4FA66672.259.31083A@bcarling.cfl.rr.com>
	, <4FA6C309.8070503@w0ep.us>
	<B136EDE3DF5EC441B6F08E0A7AB87245145D774B6B@EX2K7-CMS-1.wmata.local>
	<4FA6DF90.1090906@w0ep.us>
Message-ID: <1336336675.2192.6.camel@lancelot>

On Sun, 2012-05-06 at 15:31 -0500, Chris Howard w0ep wrote:
> That was very helpful!
> 
> I didn't communicate very well, in that I was also
> (or mostly) interested in the wattage of the resistors.
> 
> If you have similar info for wattage,
> that would be really great!
> 
> 
> Chris


Hi,

Tim did a good job. You already know now how to use the current and
voltage to select a resistor. Use the current and voltage to determine
the rating in watts. Multiply the voltage by the current and that equals
watts. That cathode resistor will be dropping the about 8 volts (the
voltage you will measure if you put a voltmeter across the resistor) and
the cathode current - which is also the resistor current - was 9
milliamps in Tim's example. 8 X .009 = .072 watts. A one watt resistor
*should* be okay but I'm one of those guys who would put in a 2 watt
resistor if there is room for it. A quarter watt or half watt resistor
won't survive there for very long.

I hope that helps.

73,

Bill  KU8H


From tshoppa at wmata.com  Sun May  6 16:48:07 2012
From: tshoppa at wmata.com (Shoppa, Tim)
Date: Sun, 6 May 2012 16:48:07 -0400
Subject: [HBR] about resistors
In-Reply-To: <4FA6DF90.1090906@w0ep.us>
References: <4FA66672.259.31083A@bcarling.cfl.rr.com>,
	<4FA6C309.8070503@w0ep.us>
	<B136EDE3DF5EC441B6F08E0A7AB87245145D774B6B@EX2K7-CMS-1.wmata.local>,
	<4FA6DF90.1090906@w0ep.us>
Message-ID: <B136EDE3DF5EC441B6F08E0A7AB87245145D774B6C@EX2K7-CMS-1.wmata.local>

That's even easier:

Watts = current through resistor * voltage across resistor

or (given that current through resistor = Voltage across resistor / Resistance)

Watts = (Voltage across resistor squared) / Resistance

e.g. Cathode resistor of 1K ohms with 9 Volts across it is dissipating 0.081 watts. 1/4W will work fine (but more typically in old radios smallest you will see is 1/2W).

or e.g. plate resistor in resistor coupled amplifier: 100 volts across 250K ohms gives a power of (100*100)/250K = 0.04 watts. Again 1/4W or 1/2W will work fine.

As you get to bigger power tubes you can get up into multi-watt values.  e.g. for a 6L6GC operated as spec notes with cathode resistor of 218 ohms and 51 mA current, we get up to 11V * 51mA = 0.56 W. You would use a 1 or 2 Watt rated resistor here.
________________________________________
From: hbr-bounces at mailman.qth.net [hbr-bounces at mailman.qth.net] On Behalf Of Chris Howard w0ep [w0ep at w0ep.us]
Sent: Sunday, May 06, 2012 4:31 PM
To: HBR Receiver List
Subject: Re: [HBR] about resistors

That was very helpful!

I didn't communicate very well, in that I was also
(or mostly) interested in the wattage of the resistors.

If you have similar info for wattage,
that would be really great!


Chris





______________________________________________________________
HBR mailing list
Home: http://mailman.qth.net/mailman/listinfo/hbr
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:HBR at mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

From wrcromwell at gmail.com  Sun May  6 16:57:31 2012
From: wrcromwell at gmail.com (Bill Cromwell)
Date: Sun, 06 May 2012 16:57:31 -0400
Subject: [HBR] about resistors
In-Reply-To: <B136EDE3DF5EC441B6F08E0A7AB87245145D774B6C@EX2K7-CMS-1.wmata.local>
References: <4FA66672.259.31083A@bcarling.cfl.rr.com>
	, <4FA6C309.8070503@w0ep.us>
	<B136EDE3DF5EC441B6F08E0A7AB87245145D774B6B@EX2K7-CMS-1.wmata.local>
	, <4FA6DF90.1090906@w0ep.us>
	<B136EDE3DF5EC441B6F08E0A7AB87245145D774B6C@EX2K7-CMS-1.wmata.local>
Message-ID: <1336337851.2192.21.camel@lancelot>

Hah!

When I replied to the wattage question I was fighting a nap (still am).
After I hit send I looked at my numbers again and just hung my head in
shame. That' NOT 3/4 of a watt! I correctly guessed that somebody would
send the correct info.

73,

Bill  KU8H  (going for a nap now)


From waltah at earthlink.net  Sun May  6 20:35:36 2012
From: waltah at earthlink.net (Walt Hutchens)
Date: Sun, 06 May 2012 20:35:36 -0400
Subject: [HBR] about resistors
In-Reply-To: <4FA6DF90.1090906@w0ep.us>
Message-ID: <CBCC9117.10054%waltah@earthlink.net>

Chris wondered:

> I didn't communicate very well, in that I was also
> (or mostly) interested in the wattage of the resistors.

As a rule of thumb, except for power stages and circuits (the audio output
tube in a receiver and HV rectifier and associated circuits, you can use 1/2
watt.   That'll do for nearly all plate, grid, cathode resistors.   With a
power output stage (say a 6AQ5 or 6L6) it's wise to do the calculations.
Ditto for voltage dividers:  For example you are using 250V on the plates of
a receiver but want only 100V on the screen grid of the IF stages; screen
current is 4 mA so if you just use a dropping resistor you'll need 37.5k
(use 39k) and 150 x .004 = 0.6W;  use 1W for that job.

Modern carbon film resistors hold their value VERY accurately over decades.
If you are using vintage resistors -- the carbon composition type -- check
the resistance before installing as it may be far from the marked value AND
be extra conservative about ratings as they drift (in value) even more
rapidly if hot.

As a general practice, when a resistor handles power  -- say the dropping
resistor that feeds a VR tube for regulated HV -- a wirewound resistor is
preferred over carbon types.   OR (with modern resistors) the metal film
units.  Both of these types of resistor function well at high temperatures.

Generally these issues are greatly simplified by following the schematic and
parts list of an established design.   The designer will specify the sizes,
voltage ratings (and so on) for the parts.   "All resistors 1/2W unless
otherwise specified" but then in the parts list you might find '150 ohm 2W
wirewound' for a cathode resistor.

Even when you strike out on your own you can get help:  Using a 6AQ5 with
250V on the plate as an output stage isn't a new idea and you probably can
find an existing design with parts specs for such a stage.

Capacitor voltage ratings are a little trickier and here it's really best to
go with what your W6TC (or other) circuit calls for.   Electrolytic caps
need to be rated for more than the highest voltage they'll ever see;  that's
usually taken as 1.4 x the AC voltage to the rectifier since in nearly all
circuits it is possible for rectified voltage to appear on the filter caps
before (or without) a load to pull it down to the normal output.   125V line
operated HV,  peak voltage would be 175V:  Really should use 200V or 250
electrolytics for the filter.    The 160V rated caps will GENERALLY do fine
-- that number was chosen to handle AC line rectifier circuits -- but it's
not conservative.

However you don't want to use too high a voltage rating:   If you go more
than double the normal operating voltage -- say over 250V in the example
above -- an electrolytic cap may not function properly as it depends on the
applied voltage to form the dielectric.

Okay, you have a local oscillator circuit, nice hi-Q coil (W6TC set!) and
you need a fixed capacitor in parallel with the tuning cap.  You have some
of the 50V ceramic caps in the proper value: Is this a good part for this
job?   

Probably not.  Even receiving oscillator tank circuits have fairly high
currents flowing between the coil and the capacitor(s) across that coil;
that little dot of a cap may be handling 100 mA or more of RF and it will
drift like crazy.   Tank circuit capacitors for normal vacuum tube
oscillators should be the largest physical size that's convenient AND
designed for stable capacitance as temperature changes.  Silver mica (the
electrodes are plated onto the mica dielectric) and the larger zero
temperature coefficient ceramics are the best choices.

Here, however, you may not always get help from the parts list provided by
the vintage circuit designer because those itty-bitty ceramic caps were not
yet on the market:  Pretty much any cap that W6TC could buy was big enough
to work okay in a receiver oscillator.

This problem snarls out loud if building a vintage transmitter VFO:  Power
tube oscillators run even higher tank circuit currents and the capacitors in
these circuits must be chosen accordingly.   Any number of ham designers
have been amazed at the improvement in VFO stability when a single cap was
replaced by (say) four of 1/4 the size in parallel ... by sharing the
current, they suffered less heating.

Walt Hutchens
KJ4KV


From w0ep at w0ep.us  Tue May  8 14:37:04 2012
From: w0ep at w0ep.us (Chris Howard w0ep)
Date: Tue, 08 May 2012 13:37:04 -0500
Subject: [HBR] about resistors
In-Reply-To: <CBCC9117.10054%waltah@earthlink.net>
References: <CBCC9117.10054%waltah@earthlink.net>
Message-ID: <4FA967D0.6090508@w0ep.us>


Thanks to the list for all inputs.
You guys are a wealth of useful info.

Chris
w0ep



On 5/6/2012 7:35 PM, Walt Hutchens wrote:
> Chris wondered:
>

From w0ep at w0ep.us  Tue May  8 14:54:37 2012
From: w0ep at w0ep.us (Chris Howard w0ep)
Date: Tue, 08 May 2012 13:54:37 -0500
Subject: [HBR] HPR 16 on ebay
In-Reply-To: <4FA2BC31.7040902@w0ep.us>
References: <4FA2BC31.7040902@w0ep.us>
Message-ID: <4FA96BED.3000908@w0ep.us>


Looks like the thing is going to top $400.

That puts it above quite a few of the
commercial offerings of the same era.

(And testimony to a job well done, long ago.)


I guess I'd better do a good job on mine, make it
look pretty.

Chris
w0ep







From daileyservices at qwest.net  Tue May  8 14:58:47 2012
From: daileyservices at qwest.net (TC Dailey)
Date: Tue, 8 May 2012 12:58:47 -0600
Subject: [HBR] HPR 16 on ebay
References: <4FA2BC31.7040902@w0ep.us> <4FA96BED.3000908@w0ep.us>
Message-ID: <2292AC0DBED4446990F0C75557B00CFE@w0eaj>

If you make it pretty - some lawyers will fight over it, some day.


----- Original Message ----- 
From: "Chris Howard w0ep" <w0ep at w0ep.us>
> 
> I guess I'd better do a good job on mine, make it
> look pretty.
> 
> Chris
> w0ep


From waltah at earthlink.net  Tue May  8 17:35:39 2012
From: waltah at earthlink.net (Walt Hutchens)
Date: Tue, 08 May 2012 17:35:39 -0400
Subject: [HBR] HPR 16 on ebay
In-Reply-To: <2292AC0DBED4446990F0C75557B00CFE@w0eaj>
Message-ID: <CBCF09EB.102AE%waltah@earthlink.net>

> If you make it pretty - some lawyers will fight over it, some day.

I've often thought that someone with a whole bunch of time to kill and the
$150 or so to front the parts cost could get paid $2/hour or so by building
HBR's for the eBay market.

Hey, at least you'd get your money out and clear a spot on the workbench for
the next project!

Walt
KJ4KV


From johnmb at nc.rr.com  Tue May  8 19:06:22 2012
From: johnmb at nc.rr.com (john)
Date: Tue, 08 May 2012 19:06:22 -0400
Subject: [HBR] HPR 16 on ebay
In-Reply-To: <CBCF09EB.102AE%waltah@earthlink.net>
References: <2292AC0DBED4446990F0C75557B00CFE@w0eaj>
	<CBCF09EB.102AE%waltah@earthlink.net>
Message-ID: <6.2.1.2.2.20120508190603.03b6acc0@pop-server.nc.rr.com>



Quite true!

You could literally make tens of dollars!

John K5MO



At 05:35 PM 5/8/2012, Walt Hutchens wrote:
> > If you make it pretty - some lawyers will fight over it, some day.
>
>I've often thought that someone with a whole bunch of time to kill and the
>$150 or so to front the parts cost could get paid $2/hour or so by building
>HBR's for the eBay market.
>
>Hey, at least you'd get your money out and clear a spot on the workbench for
>the next project!
>
>Walt
>KJ4KV
>
>______________________________________________________________
>HBR mailing list
>Home: http://mailman.qth.net/mailman/listinfo/hbr
>Help: http://mailman.qth.net/mmfaq.htm
>Post: mailto:HBR at mailman.qth.net
>
>This list hosted by: http://www.qsl.net
>Please help support this email list: http://www.qsl.net/donate.html


From wrcromwell at gmail.com  Tue May  8 19:20:45 2012
From: wrcromwell at gmail.com (Bill Cromwell)
Date: Tue, 08 May 2012 19:20:45 -0400
Subject: [HBR] HPR 16 on ebay
In-Reply-To: <6.2.1.2.2.20120508190603.03b6acc0@pop-server.nc.rr.com>
References: <2292AC0DBED4446990F0C75557B00CFE@w0eaj>
	<CBCF09EB.102AE%waltah@earthlink.net>
	<6.2.1.2.2.20120508190603.03b6acc0@pop-server.nc.rr.com>
Message-ID: <1336519245.1978.0.camel@lancelot>

On Tue, 2012-05-08 at 19:06 -0400, john wrote:
> 
> Quite true!
> 
> You could literally make tens of dollars!
> 
> John K5MO

In my case it might be tens of dimes!

73,

Bill  KU8H


From daileyservices at qwest.net  Wed May 16 09:27:12 2012
From: daileyservices at qwest.net (TC Dailey)
Date: Wed, 16 May 2012 07:27:12 -0600
Subject: [HBR] Unique HBR
Message-ID: <530F26B580394012AE0F5EF9A7ED802C@w0eaj>

A good friend, from whom I bought my HRO-60, has a unique HBR.  It's 11 tubes but appears NOT to be the standard plug-in configuration.  I'm up to my ears, so can't even consider taking it, but if you guys are interested, contact Jim Crofutt at crokc at cableone.net  as I know the pictures won't get through the reflector filter - no, I don't know why.  He's out of Des Moines, Iowa but brought my HRO to Kansas City, so give it a go.

Tom - W0EAJ

From Ke9xq at charter.net  Thu May 24 17:26:54 2012
From: Ke9xq at charter.net (William Wood)
Date: Thu, 24 May 2012 16:26:54 -0500
Subject: [HBR] 75khz slug tuned coil question
Message-ID: <2B988D2F-FEE1-4D27-8F3A-C5535C5A829D@charter.net>

Greetings
    I just thought I'd share my ignorance. : )
Please explain the difference in the two types
of 75-100 Khz IFs.  For one thing they are all
slug tuned, but the BFO is denominated as different
then the others...   ???
    Think I have 3 75 khz IFs coming in the mail shortly
so I am beginning to wonder what the differences were,
and wanted to ask you guys about that.
    I am thinking of making up a wish list to mail off to
Mouser or Dan's Small parts or somewhere shortly,
as I don't seem to get to the Hamfests around here.
Always have one excuse or another.  : )  SO, second
question is where would you send off for your parts.
I've got a ton of used resistors caps etc, but am thinking
of breaking down and buying mostly new parts.  New
tube sockets too, I think I have most all the tubes but have
not dug them out yet because I am or was so far away from
the beginning of the build, now I think I am getting close,
with those IFs coming my way.
    One last question, anyone have those parts laying around
you'd want to part with? IF you do, please let me know what
you'd want for them.
73
Bill  KE9XQ




If the grass is greener on the
other side of the fence, then
maybe you ain't watering
your own lawn...

Favorite Yahoo Groups...

http://groups.yahoo.com/group/OTR_and_Music/

http://groups.yahoo.com/group/Radio_Library/

Don't forget


http://www.archive.org/index.php





From daileyservices at qwest.net  Thu May 24 17:45:57 2012
From: daileyservices at qwest.net (TC Dailey)
Date: Thu, 24 May 2012 15:45:57 -0600
Subject: [HBR] 75khz slug tuned coil question
References: <2B988D2F-FEE1-4D27-8F3A-C5535C5A829D@charter.net>
Message-ID: <43D4B85BAB414E1D8FD20326638F1D76@w0eaj>

I think you're asking HOW they're different (physically)?  IF cans usually 
have a GOZINTA winding and a GOZOUTA winding; i.e. two tuned circuits for 
the same freq.  BFO cans usually have a feedback winding or tap, as they're 
part of a very simple oscillator.  At least that's MY take on it

TC 


From ke9xq at charter.net  Thu May 24 17:50:20 2012
From: ke9xq at charter.net (William Wood)
Date: Thu, 24 May 2012 16:50:20 -0500
Subject: [HBR] 75khz slug tuned coil question
In-Reply-To: <43D4B85BAB414E1D8FD20326638F1D76@w0eaj>
References: <2B988D2F-FEE1-4D27-8F3A-C5535C5A829D@charter.net>
	<43D4B85BAB414E1D8FD20326638F1D76@w0eaj>
Message-ID: <DAB7EF1B-C6F5-4546-8584-0EC817708160@charter.net>

Yupper, you hit it I guess : )
I understood the input and output
part, but couldn't think of the difference
with the BFO coil : )
Thanks
Bill



On May 24, 2012, at 4:45 PM, TC Dailey wrote:

> I think you're asking HOW they're different (physically)?  IF cans  
> usually
> have a GOZINTA winding and a GOZOUTA winding; i.e. two tuned  
> circuits for
> the same freq.  BFO cans usually have a feedback winding or tap, as  
> they're
> part of a very simple oscillator.  At least that's MY take on it
>
> TC
>
> ______________________________________________________________
> HBR mailing list
> Home: http://mailman.qth.net/mailman/listinfo/hbr
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:HBR at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html

If the grass is greener on the
other side of the fence, then
maybe you ain't watering
your own lawn...

Favorite Yahoo Groups...

http://groups.yahoo.com/group/OTR_and_Music/

http://groups.yahoo.com/group/Radio_Library/

Don't forget


http://www.archive.org/index.php





From wrcromwell at gmail.com  Thu May 24 20:39:05 2012
From: wrcromwell at gmail.com (Bill Cromwell)
Date: Thu, 24 May 2012 20:39:05 -0400
Subject: [HBR] 75khz slug tuned coil question
In-Reply-To: <2B988D2F-FEE1-4D27-8F3A-C5535C5A829D@charter.net>
References: <2B988D2F-FEE1-4D27-8F3A-C5535C5A829D@charter.net>
Message-ID: <1337906345.1939.29.camel@lancelot>

Hi Bill,

The I.F. cans are made to operate a specific frequency with a specified
Q which directly affects the bandwidth in your radio. Some of the cans
have variable caps in them for tuning instead of slugs in the inductor.
Most of them can probably be stretched the amount you are talking about
but the performance might be degraded. That won't matter much if the
radio has an xtal filter for selectivity but the one you are building
relies on those I.F. cans for selectivity.

If you have 75 kc cans coming I'll hold onto the 85 kc ones I was going
to send. I don't have a 85 kc BFO coil I can spare so you will be better
off if the 75 kc set includes that. Good luck with your project.

73,

Bill  KU8H


From ke9xq at charter.net  Thu May 24 21:14:35 2012
From: ke9xq at charter.net (ke9xq at charter.net)
Date: Thu, 24 May 2012 21:14:35 -0400 (EDT)
Subject: [HBR] 75khz slug tuned coil question
Message-ID: <2aca0dba.1b4a55.137818f396a.Webtop.48@charter.net>

I was thinking I heard these will work if you select a frequency
such as 75, or 85 or 100, you have to reconsider the specifics, but
should work...
73
Bill



On Thu, May 24, 2012 at 7:39 PM, Bill Cromwell wrote:

> Hi Bill,
>
> The I.F. cans are made to operate a specific frequency with a 
> specified
> Q which directly affects the bandwidth in your radio. Some of the cans
> have variable caps in them for tuning instead of slugs in the 
> inductor.
> Most of them can probably be stretched the amount you are talking 
> about
> but the performance might be degraded. That won't matter much if the
> radio has an xtal filter for selectivity but the one you are building
> relies on those I.F. cans for selectivity.
>
> If you have 75 kc cans coming I'll hold onto the 85 kc ones I was 
> going
> to send. I don't have a 85 kc BFO coil I can spare so you will be 
> better
> off if the 75 kc set includes that. Good luck with your project.
>
> 73,
>
> Bill  KU8H
>
> ______________________________________________________________
> HBR mailing list
> Home: http://mailman.qth.net/mailman/listinfo/hbr
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:HBR at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html

From wrcromwell at gmail.com  Fri May 25 08:14:15 2012
From: wrcromwell at gmail.com (Bill Cromwell)
Date: Fri, 25 May 2012 08:14:15 -0400
Subject: [HBR] 75khz slug tuned coil question
In-Reply-To: <2aca0dba.1b4a55.137818f396a.Webtop.48@charter.net>
References: <2aca0dba.1b4a55.137818f396a.Webtop.48@charter.net>
Message-ID: <1337948055.1926.17.camel@lancelot>

On Thu, 2012-05-24 at 21:14 -0400, ke9xq at charter.net wrote:
> I was thinking I heard these will work if you select a frequency
> such as 75, or 85 or 100, you have to reconsider the specifics, but
> should work...
> 73
> Bill
> 


Hi Bill,

I got confused when you referred to the cans I have as 75 kc cans. I
thought you had some "other cans" coming and I would have saved these
back for somebody else. I DO NOT need them. I'm sure they'll retune down
that far (10 kc) or up to 100 kc (15kc) if that's where you want to go.
I am using the ones in my project at the design frequency of 85 kc. The
BFO coil is the only part you will have to find. That coil is the only
part I can't spare. I stopped looking when I acquired all the parts I
need.

The cans are yours. I'll get them on their way...probably right after
the holiday. NO! Not the Christmas holiday <evil grin>. I was hunting
for sets of those and ended up going from famine to feast. I don't
remember what I paid for them Bill - maybe $20 or so (not a lot you can
be sure). Send something to somebody else when needed if you see a
request on one of these reflectors. That's called "paying it forward".
It's how I live.

73,

Bill  KU8H


From ke9xq at charter.net  Fri May 25 10:24:44 2012
From: ke9xq at charter.net (William Wood)
Date: Fri, 25 May 2012 09:24:44 -0500
Subject: [HBR] 75khz slug tuned coil question
In-Reply-To: <1337948055.1926.17.camel@lancelot>
References: <2aca0dba.1b4a55.137818f396a.Webtop.48@charter.net>
	<1337948055.1926.17.camel@lancelot>
Message-ID: <4475AF22-17C7-4F47-B7F2-1530EB0B4D8A@charter.net>

Sounds great to me man : )
And will do, as to the paying it forward...
A gent about 2 hours drive from me offered
a parts radio that had some of these, but I turned
it down, as it was a trade, I would rebuild a similar
one for him.  While I have 'fixed' a couple of tube
receivers in the past, I am not sure of my knowledge
base enough to tackle someone else's receiver : )
It has been tempting to try to do it, but if I mess things
up I might have my hands full, especially if the parts
are not easily obtained.
Thanks again
73
Bill



On May 25, 2012, at 7:14 AM, Bill Cromwell wrote:

> On Thu, 2012-05-24 at 21:14 -0400, ke9xq at charter.net wrote:
>> I was thinking I heard these will work if you select a frequency
>> such as 75, or 85 or 100, you have to reconsider the specifics, but
>> should work...
>> 73
>> Bill
>>
>
>
> Hi Bill,
>
> I got confused when you referred to the cans I have as 75 kc cans. I
> thought you had some "other cans" coming and I would have saved these
> back for somebody else. I DO NOT need them. I'm sure they'll retune  
> down
> that far (10 kc) or up to 100 kc (15kc) if that's where you want to  
> go.
> I am using the ones in my project at the design frequency of 85 kc.  
> The
> BFO coil is the only part you will have to find. That coil is the only
> part I can't spare. I stopped looking when I acquired all the parts I
> need.
>
> The cans are yours. I'll get them on their way...probably right after
> the holiday. NO! Not the Christmas holiday <evil grin>. I was hunting
> for sets of those and ended up going from famine to feast. I don't
> remember what I paid for them Bill - maybe $20 or so (not a lot you  
> can
> be sure). Send something to somebody else when needed if you see a
> request on one of these reflectors. That's called "paying it forward".
> It's how I live.
>
> 73,
>
> Bill  KU8H
>
> ______________________________________________________________
> HBR mailing list
> Home: http://mailman.qth.net/mailman/listinfo/hbr
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:HBR at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html

If the grass is greener on the
other side of the fence, then
maybe you ain't watering
your own lawn...

Favorite Yahoo Groups...

http://groups.yahoo.com/group/OTR_and_Music/

http://groups.yahoo.com/group/Radio_Library/

Don't forget


http://www.archive.org/index.php





From rrfowler0429 at att.net  Sun May 27 02:49:29 2012
From: rrfowler0429 at att.net (Ralph Fowler)
Date: Sun, 27 May 2012 01:49:29 -0500
Subject: [HBR] 75khz slug tuned coil question
In-Reply-To: <4475AF22-17C7-4F47-B7F2-1530EB0B4D8A@charter.net>
References: <2aca0dba.1b4a55.137818f396a.Webtop.48@charter.net>
	<1337948055.1926.17.camel@lancelot>
	<4475AF22-17C7-4F47-B7F2-1530EB0B4D8A@charter.net>
Message-ID: <4FC1CE79.8080203@att.net>

IF transformers generally are designed to work into specific impedances 
and are sometimes designated as "input", "interstage" or "output" 
transformers, depending on where they are placed in the circuit. Using 
then at other than the designed places means they are not terminated 
properly and generally the "Q" will be negatively affected (narrowing or 
widening of the passband). So you should try and find out what type you 
have and use it accordingly.

On 5/25/2012 9:24 AM, William Wood wrote:
> Sounds great to me man : )
> And will do, as to the paying it forward...
> A gent about 2 hours drive from me offered
> a parts radio that had some of these, but I turned
> it down, as it was a trade, I would rebuild a similar
> one for him.  While I have 'fixed' a couple of tube
> receivers in the past, I am not sure of my knowledge
> base enough to tackle someone else's receiver : )
> It has been tempting to try to do it, but if I mess things
> up I might have my hands full, especially if the parts
> are not easily obtained.
> Thanks again
> 73
> Bill
>
>
>
> On May 25, 2012, at 7:14 AM, Bill Cromwell wrote:
>
>> On Thu, 2012-05-24 at 21:14 -0400, ke9xq at charter.net wrote:
>>> I was thinking I heard these will work if you select a frequency
>>> such as 75, or 85 or 100, you have to reconsider the specifics, but
>>> should work...
>>> 73
>>> Bill
>>>
>>
>>
>> Hi Bill,
>>
>> I got confused when you referred to the cans I have as 75 kc cans. I
>> thought you had some "other cans" coming and I would have saved these
>> back for somebody else. I DO NOT need them. I'm sure they'll retune down
>> that far (10 kc) or up to 100 kc (15kc) if that's where you want to go.
>> I am using the ones in my project at the design frequency of 85 kc. The
>> BFO coil is the only part you will have to find. That coil is the only
>> part I can't spare. I stopped looking when I acquired all the parts I
>> need.
>>
>> The cans are yours. I'll get them on their way...probably right after
>> the holiday. NO! Not the Christmas holiday <evil grin>. I was hunting
>> for sets of those and ended up going from famine to feast. I don't
>> remember what I paid for them Bill - maybe $20 or so (not a lot you can
>> be sure). Send something to somebody else when needed if you see a
>> request on one of these reflectors. That's called "paying it forward".
>> It's how I live.
>>
>> 73,
>>
>> Bill  KU8H
>>
>> ______________________________________________________________
>> HBR mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/hbr
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:HBR at mailman.qth.net
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>
> If the grass is greener on the
> other side of the fence, then
> maybe you ain't watering
> your own lawn...
>
> Favorite Yahoo Groups...
>
> http://groups.yahoo.com/group/OTR_and_Music/
>
> http://groups.yahoo.com/group/Radio_Library/
>
> Don't forget
>
>
> http://www.archive.org/index.php
>
>
>
>
>

From wmurray348 at aol.com  Sun May 27 17:34:29 2012
From: wmurray348 at aol.com (wmurray348 at aol.com)
Date: Sun, 27 May 2012 17:34:29 -0400
Subject: [HBR] 85 kc command set if transformers
Message-ID: <F6764478-9424-44A2-8CA0-38F06B4831A0@aol.com>

I have some extra 85 kc transformers , they are wrapped in wax paper and are numbered "4698" 85 kc. You can reply offline, you can find my email on qrz.com. 73 bill w9vc



Sent from my iPad

From ke9xq at charter.net  Sun May 27 19:43:31 2012
From: ke9xq at charter.net (William Wood)
Date: Sun, 27 May 2012 18:43:31 -0500
Subject: [HBR] Reading through the W6TC material again  : )
Message-ID: <DED92653-3161-4106-8D1D-978B362FC818@charter.net>

Greetings Gang

I printed out the book on building the HBR and it's history
about a year ago when I started looking for some of the parts.
Got the chassis, cabinet, faceplate, 898 dial, that three gang cap
and a few used tubes and sockets collected so far, so decided
to re-read the book and anything else I can find before
I drill that first hole.

Also bought a small artist's drawing book to detail sections
and my own build history, in order to finalize and or visualize
the radio's progress and or trouble shooting.  Besides taking
a bunch of notes during this re-read.  Because of all the efforts
others have gone through, and some of their troubles, I want
to take a bunch of notes to hopefully avoid those same pitfalls.

One thing we have going for us here is the internet and groups
such as ours...   : )  Thanks for being there guys : )  Am now
thinking as I posted the other day of sending off for a few new parts
too, such as the tube sockets, caps and such, might eliminate a
few headaches a little down the road, rather then using 40 to 50
year old intermittent sockets and the like.

Thanks for all the help so far, and I'n sure we will bend an ear or two
during the building, as a lot of this is probably over my head, only
know a smidgen here and there : )

73
Bill



If the grass is greener on the
other side of the fence, then
maybe you ain't watering
your own lawn...

Favorite Yahoo Groups...

http://groups.yahoo.com/group/OTR_and_Music/

http://groups.yahoo.com/group/Radio_Library/

Don't forget


http://www.archive.org/index.php





From waltah at earthlink.net  Sun May 27 20:57:52 2012
From: waltah at earthlink.net (Walt Hutchens)
Date: Sun, 27 May 2012 20:57:52 -0400
Subject: [HBR] Reading through the W6TC material again  : )
In-Reply-To: <DED92653-3161-4106-8D1D-978B362FC818@charter.net>
Message-ID: <CBE845D0.11FCF%waltah@earthlink.net>

William Wood said:

> ... sending off for a few new parts too, such as the tube sockets, caps and
> such, might eliminate a few headaches a little down the road, rather then
> using 40 to 50 year old intermittent sockets and the like.

Sockets are widely variable.   The ones from military junk are most often
fine unless they show signs of a specific problem -- arcing, severe water
damage, green corrosion, etc.   OTOH many of those I took from the two
Heathkit HR-10 receivers I used doing the HR-10 to HBR project were junk --
the pins were so loose that I had nothing but trouble with them.

The Heath sockets looked just like many others but seem to have had very
poor quality contacts -- maybe just cadmium plated mild steel rather than
phosphor bronze spring material?  The tension was GONE in many sockets in
those two sets.   

If you can easily stick a tube in and pull it out of a used socket while
holding the socket in your had, I think that socket should be thrown away.

LO sockets are particularly critical: not only should the tube be firmly
secured but it shouldn't flop around as the slightest vibration will lead to
instability.   For sets having a separate 1st mixer I'd extend that rule to
the mixer, too.    And DEFINITELY get a socket that holds the oscillator
coil rigidly: That's another place where any 'flop' will take you off
channel on 20M and higher.

Walt Hutchens
KJ4KV


From smithab11 at comcast.net  Sun May 27 22:48:49 2012
From: smithab11 at comcast.net (B Smith)
Date: Sun, 27 May 2012 22:48:49 -0400
Subject: [HBR] How to Build an HBR
In-Reply-To: <DED92653-3161-4106-8D1D-978B362FC818@charter.net>
References: <DED92653-3161-4106-8D1D-978B362FC818@charter.net>
Message-ID: <5461F21CE60F49D198779337C36765FE@Dell560>

Stop stalling, and start building,  build a BFO circuit first,

http://k4che.com/HBR/BFO%20Coil%20Page%201and%20photos/BFO%20Coil%20Page%20%201.htm

 after you master that , grab a Byers chassis and start drilling 
holes, keep it simple, put the power supply on a separate chassis 
etc., if you are nervous about drilling the holes, then order two 
chassis top plates  for  the Byers chassis, if you screw the first one 
up then you have a second to fall back on,  Be prepared to make 
mistakes, don't waste time looking for templates, lay your parts out 
on the top, mark it with masking tape and press on,  if you drill the 
wrong hole, cover it with a small piece  of aluminum and press on.

http://k4che.com/HBR/Chassis%20Construction/Main%20Chassis%20Construction.htm

Then build the audio section and then start on the rest of the project 
working from the audio section backwards. Don't spend years looking 
for a perfect dial and reduction mechanism, just slap on a temporary 
dial and get on with it or just leave the variable installed, with the 
shaft sticking out and  install a crude dial and pointer  and play, 
find the ultimate dial later.  Can't find a 3 stage variable then use 
a two gang variable  for the osc and mixer and a separate cap for the 
RF. Maybe you will find a better capacitor later, so what if you have 
to change a few turns on the coils, you can  rewind a coil in 30 
minutes.
  Don't wait until you have collected every single part of the 
project, otherwise you will never get started.
You are not building a project that has to be perfect, its  just an 
HBR       a "Home Brew Receiver".

breck k4che 


From ke9xq at charter.net  Mon May 28 18:19:16 2012
From: ke9xq at charter.net (William Wood)
Date: Mon, 28 May 2012 17:19:16 -0500
Subject: [HBR] WTB  75-130 ish Khz BFO coil
Message-ID: <6A032E7A-5954-4C25-BFEC-C5C42FC591FE@charter.net>

Greetings Folks
    I just ordered 6,   75 Khz IFs, but did not get a BFO
can in the deal, any locals have one they'd spare : )
Thanks for the bandwidth
73
Bill  KE9XQ





If the grass is greener on the
other side of the fence, then
maybe you ain't watering
your own lawn...

Favorite Yahoo Groups...

http://groups.yahoo.com/group/OTR_and_Music/

http://groups.yahoo.com/group/Radio_Library/

Don't forget


http://www.archive.org/index.php





From ke9xq at charter.net  Mon May 28 18:24:35 2012
From: ke9xq at charter.net (William Wood)
Date: Mon, 28 May 2012 17:24:35 -0500
Subject: [HBR] WTB  75 Khz BFO coil
Message-ID: <202E6A47-5939-4474-9E84-1C438D98F182@charter.net>

Greetings HBR  Builders
    I would like to get my mitts on a 75-130 ish
BFO coil  Hopefully one of you have one you
are not planning on using.  If you do, please
let me know.  Thanks in advance
73
Bill  KE9XQ




If the grass is greener on the
other side of the fence, then
maybe you ain't watering
your own lawn...

Favorite Yahoo Groups...

http://groups.yahoo.com/group/OTR_and_Music/

http://groups.yahoo.com/group/Radio_Library/

Don't forget


http://www.archive.org/index.php





From ke9xq at charter.net  Mon May 28 18:26:38 2012
From: ke9xq at charter.net (William Wood)
Date: Mon, 28 May 2012 17:26:38 -0500
Subject: [HBR] opps  : )
Message-ID: <B8DB5B21-CCE1-4F30-9C3E-D59C093DAC01@charter.net>

I supposedly sent one of those two messages to
a local hams reflector : )  Sorry for the redundancy.
73
Bill  KE9XQ




If the grass is greener on the
other side of the fence, then
maybe you ain't watering
your own lawn...

Favorite Yahoo Groups...

http://groups.yahoo.com/group/OTR_and_Music/

http://groups.yahoo.com/group/Radio_Library/

Don't forget


http://www.archive.org/index.php





From bcarling at cfl.rr.com  Mon May 28 19:22:41 2012
From: bcarling at cfl.rr.com (Bry Carling)
Date: Mon, 28 May 2012 19:22:41 -0400
Subject: [HBR] WTB  75-130 ish Khz BFO coil
In-Reply-To: <6A032E7A-5954-4C25-BFEC-C5C42FC591FE@charter.net>
References: <6A032E7A-5954-4C25-BFEC-C5C42FC591FE@charter.net>
Message-ID: <0cdc0eb4-24f7-41c5-9ff4-ba382649d143@email.android.com>

I have a large collection of new coils for sale at:

http://af4k.com/coils. htm

73,
Bry, AF4K
-- 
Sent from my android "relatively smart" phone. Please excuse my brevity.

_____________________________________________
From: William Wood <ke9xq at charter.net>
Sent: Mon May 28 18:19:16 EDT 2012
To: HBR Receiver List <hbr at mailman.qth.net>
Subject: [HBR] WTB 75-130 ish Khz BFO coil


Greetings Folks
I just ordered 6, 75 Khz IFs, but did not get a BFO
can in the deal, any locals have one they'd spare : )
Thanks for the bandwidth
73
Bill KE9XQ





If the grass is greener on the
other side of the fence, then
maybe you ain't watering
your own lawn...

Favorite Yahoo Groups...

http://groups.yahoo.com/group/OTR_and_Music/

http://groups.yahoo.com/group/Radio_Library/

Don't forget


http://www.archive.org/index.php




_____________________________________________

HBR mailing list
Home: http://mailman.qth.net/mailman/listinfo/hbr
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:HBR at mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

From bcarling at cfl.rr.com  Mon May 28 19:22:41 2012
From: bcarling at cfl.rr.com (Bry Carling)
Date: Mon, 28 May 2012 19:22:41 -0400
Subject: [HBR] WTB  75-130 ish Khz BFO coil
In-Reply-To: <6A032E7A-5954-4C25-BFEC-C5C42FC591FE@charter.net>
References: <6A032E7A-5954-4C25-BFEC-C5C42FC591FE@charter.net>
Message-ID: <0cdc0eb4-24f7-41c5-9ff4-ba382649d143@email.android.com>

I have a large collection of new coils for sale at:

http://af4k.com/coils. htm

73,
Bry, AF4K
-- 
Sent from my android "relatively smart" phone. Please excuse my brevity.

_____________________________________________
From: William Wood <ke9xq at charter.net>
Sent: Mon May 28 18:19:16 EDT 2012
To: HBR Receiver List <hbr at mailman.qth.net>
Subject: [HBR] WTB 75-130 ish Khz BFO coil


Greetings Folks
I just ordered 6, 75 Khz IFs, but did not get a BFO
can in the deal, any locals have one they'd spare : )
Thanks for the bandwidth
73
Bill KE9XQ





If the grass is greener on the
other side of the fence, then
maybe you ain't watering
your own lawn...

Favorite Yahoo Groups...

http://groups.yahoo.com/group/OTR_and_Music/

http://groups.yahoo.com/group/Radio_Library/

Don't forget


http://www.archive.org/index.php




_____________________________________________

HBR mailing list
Home: http://mailman.qth.net/mailman/listinfo/hbr
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:HBR at mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

From ke9xq at charter.net  Mon May 28 20:07:06 2012
From: ke9xq at charter.net (William Wood)
Date: Mon, 28 May 2012 19:07:06 -0500
Subject: [HBR] WTB  75-130 ish Khz BFO coil
In-Reply-To: <0cdc0eb4-24f7-41c5-9ff4-ba382649d143@email.android.com>
References: <6A032E7A-5954-4C25-BFEC-C5C42FC591FE@charter.net>
	<0cdc0eb4-24f7-41c5-9ff4-ba382649d143@email.android.com>
Message-ID: <260B4AD6-C4B6-4132-975C-63C44B63089A@charter.net>

Hey Bry
    I don't see that coil there...
I did see one for a wire tape recorder
was that one similar???
Cheers
Bill



On May 28, 2012, at 6:22 PM, Bry Carling wrote:

> http://af4k.com/coils. htm

If the grass is greener on the
other side of the fence, then
maybe you ain't watering
your own lawn...

Favorite Yahoo Groups...

http://groups.yahoo.com/group/OTR_and_Music/

http://groups.yahoo.com/group/Radio_Library/

Don't forget


http://www.archive.org/index.php





From wn2ami at gmail.com  Tue May 29 00:08:08 2012
From: wn2ami at gmail.com (RJ Mattson)
Date: Tue, 29 May 2012 00:08:08 -0400
Subject: [HBR]  WTB 75-130 ish Khz BFO coil
Message-ID: <CAJsCO2hEvxNTQnJesyiqYUOZcX3pzcU0o8qFsZzQaPLyU+KHaw@mail.gmail.com>

Bill,
It should be easily to convert one of the 75 kHz IF's to work as the BFO
inductor.
Some of the older handbooks and articles will help you.
Be well,
bob...w2ami x wn2ami 1962

William Wood ke9xq at charter.net
to HBR

Greetings Folks
    I just ordered 6,   75 Khz IFs, but did not get a BFO
can in the deal, any locals have one they'd spare : )
Thanks for the bandwidth
73
Bill  KE9XQ

From smithab11 at comcast.net  Tue May 29 09:12:36 2012
From: smithab11 at comcast.net (B Smith)
Date: Tue, 29 May 2012 09:12:36 -0400
Subject: [HBR] WTB 75-130 ish Khz BFO coil
In-Reply-To: <CAJsCO2hEvxNTQnJesyiqYUOZcX3pzcU0o8qFsZzQaPLyU+KHaw@mail.gmail.com>
References: <CAJsCO2hEvxNTQnJesyiqYUOZcX3pzcU0o8qFsZzQaPLyU+KHaw@mail.gmail.com>
Message-ID: <AB977450A77640768F4E6F17E983DFE4@Dell560>

Info on BFO coils can be found at:
http://k4che.com/HBR/HBR%20page%201.htm

--------------------------------------------------
From: "RJ Mattson" <wn2ami at gmail.com>
Sent: Tuesday, May 29, 2012 12:08 AM
To: <HBR at mailman.qth.net>
Subject: [HBR]  WTB 75-130 ish Khz BFO coil

Bill,
It should be easily to convert one of the 75 kHz IF's to work as the 
BFO
inductor.
Some of the older handbooks and articles will help you.
Be well,
bob...w2ami x wn2ami 1962

William Wood ke9xq at charter.net
to HBR

Greetings Folks
    I just ordered 6,   75 Khz IFs, but did not get a BFO
can in the deal, any locals have one they'd spare : )
Thanks for the bandwidth
73
Bill  KE9XQ
______________________________________________________________
HBR mailing list
Home: http://mailman.qth.net/mailman/listinfo/hbr
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:HBR at mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html 


From ke9xq at charter.net  Tue May 29 10:31:41 2012
From: ke9xq at charter.net (William Wood)
Date: Tue, 29 May 2012 09:31:41 -0500
Subject: [HBR] 75 Khz BFO  info  and questions
Message-ID: <7C7C1A23-9037-4A6F-AAB8-45876308169C@charter.net>

THANKS Guys : )
Between the lot of you, You've given me
the confidence to march on.  I could wait
for some of these parts for another year
or two.  And kick the bucket without enjoying
my HBR 13C.

I'm now almost a third done with my re-read,
there is a lot there : )

One quick question here.  The 13C had a
difference in the regeneration, then the left hand
layout.  This should be able to be rectified in
compensations in the building...   Right ?
I'm sure of this but wanted to take note of that
fact, and wondered if anyone else here noticed
the difference and eliminated the problem.

I also plan on having the PS and SPK in a
separate cabinet, think I now have the larger
resistors for the PS Voltage divider, so need
to start I guess.  Did not want to drill that first
hole until I at least had most of the parts as
it was a bear bending my chassis.  : )  Don't
want to do that again unless I have to...  Not
only that, but the metal supplier here in
La Crosse sold out and is now out of business.
So next one would maybe be the mail order
and I hate to say it, but I'm fairly tight when it
comes to spending money when I want or
could do it myself...   : )

So, thanks again
73
Bill  KE9XQ
PS a note to Bill:  I'm not sure of the IFs I'm getting
IF they are what I expect I can either send yours
back to you, or offer them again when we get to
that point of the game.  thanks : )





If the grass is greener on the
other side of the fence, then
maybe you ain't watering
your own lawn...

Favorite Yahoo Groups...

http://groups.yahoo.com/group/OTR_and_Music/

http://groups.yahoo.com/group/Radio_Library/

Don't forget


http://www.archive.org/index.php





From windy10605 at juno.com  Tue May 29 15:06:06 2012
From: windy10605 at juno.com (Kees & Sandy)
Date: Tue, 29 May 2012 19:06:06 GMT
Subject: [HBR] Message sizes
Message-ID: <20120529.140606.26562.0@webmail04.dca.untd.com>

As a reminder, the server does not allow posting a message larger than 40KB.
73 Kees K5BCQ

From wrcromwell at gmail.com  Tue May 29 15:27:47 2012
From: wrcromwell at gmail.com (Bill Cromwell)
Date: Tue, 29 May 2012 15:27:47 -0400
Subject: [HBR] 75 Khz BFO  info  and questions
In-Reply-To: <7C7C1A23-9037-4A6F-AAB8-45876308169C@charter.net>
References: <7C7C1A23-9037-4A6F-AAB8-45876308169C@charter.net>
Message-ID: <1338319667.1931.6.camel@lancelot>

On Tue, 2012-05-29 at 09:31 -0500, William Wood wrote:

> PS a note to Bill:  I'm not sure of the IFs I'm getting
> IF they are what I expect I can either send yours
> back to you, or offer them again when we get to
> that point of the game.  thanks : )
> 


Hi Bill,

Mine are the ones from the ARC5 low frequency receiver R-23/BC453. The
three cans wrapped around two IF stages can give an IF passband narrower
than 2 kc. They can be setup for nice SSB operation or narrower for CW
operation. I saw one design where a ham used four cans instead of three
for a CW receiver.

The three cans are different internally. One is between the mixer, one
is interstage between IF amps, and the last is wired for the diode
detector/output. Do you have the information about which one is which? I
van email you a couple of PDF documents that contain that information
and more. I am also a user of an R-23 and a BC-453.

73,

Bill  KU8H


From windy10605 at juno.com  Tue May 29 16:01:55 2012
From: windy10605 at juno.com (Kees & Sandy)
Date: Tue, 29 May 2012 20:01:55 GMT
Subject: [HBR] HBR Website
Message-ID: <20120529.150155.26562.6@webmail04.dca.untd.com>

There are several people building the HBR receivers and I'm sure there is someone with a drilling template. I don't have one right now. This old receiver just keeps going and going ....very surprising. I receive messages every week or two about someone finding another one. If you can find a basket case, it's great for obtaining parts. 
The last one I bought was from a kid who had been given one by "an old ham down the street" and he was going to make a "spaceship home movie" and use the HBR as a control console. He found my name by searching on "HBR receiver". The unit said "HBR" on the front. I sent him (and his mother) $100 and lots of other parts to make a "space station console" .......he was very happy and it turned out to be a nice HBR-11.  
73 Kees K5BCQ

---------- Original Message ----------
From: James Lee <scriviamo at gmail.com>
To: "Kees & Sandy" <windy10605 at juno.com>
Subject: Re: HBR Website
Date: Tue, 29 May 2012 12:48:15 -0700

Good to hear from you, Kees.  OK, I'll send in my name etc. again.

I wonder also if you could let me know how I can get a set of the drilling templates for the HBR-16/  Are folks still   building? My inquiries for parts have been pretty discouraging, (no surprise there!) so have been ordering out materials for HB coils, cans., etc.

Regards' Jim
KF6K


On Tue, May 29, 2012 at 11:12 AM, Kees & Sandy <windy10605 at juno.com> wrote:
James,
Yes, I see notes going back and forth all the time. Since I'm the administrator I haven't seen a request to add you name. Can you submit your name again and send me a note when you have. Maybe it's getting dropped somewhere and I need to look into that.
73 Kees K5BCQ

---------- Original Message ----------
From: James Lee <scriviamo at gmail.com>
To: k5bcq at arrl.net
Subject: HBR Website
Date: Tue, 29 May 2012 10:03:17 -0700

Is the group still active and viable?  I have submitted my name but have not heard anything.  Perhaps the project is no longer possible to consider?

Regars,
James
KF6K



From smithab11 at comcast.net  Tue May 29 19:14:17 2012
From: smithab11 at comcast.net (B Smith)
Date: Tue, 29 May 2012 19:14:17 -0400
Subject: [HBR] HBR Receivers being built?
Message-ID: <C122422083134B66801CA11855FC1783@Dell560>

All those with a HBR "QST" series  actually being build , take one 
step forward, and send me
a picture, if I get enough pics  I will post it to my web page.

breck k4che 


From scriviamo at gmail.com  Tue May 29 19:22:10 2012
From: scriviamo at gmail.com (James Lee)
Date: Tue, 29 May 2012 16:22:10 -0700
Subject: [HBR] Need HBR-16 chassis and panel drilling templates.
Message-ID: <CAGjW3ev=H=yiQD0rKXETSTDHnX3ynotemqzHSGCX4ZfjftD8Fw@mail.gmail.com>

Hello to all;

I am a new guy on the block, and looking for the drilling templates for the
HBR-16.  Greatly appreciate any help.
Jim

From waltah at earthlink.net  Tue May 29 20:27:56 2012
From: waltah at earthlink.net (Walt Hutchens)
Date: Tue, 29 May 2012 20:27:56 -0400
Subject: [HBR] HBR Website
In-Reply-To: <20120529.150155.26562.6@webmail04.dca.untd.com>
Message-ID: <CBEAE1CC.12199%waltah@earthlink.net>

> I wonder also if you could let me know how I can get a set of the drilling
> templates for the HBR-16/  Are folks still   building? My inquiries for parts
> have been pretty discouraging, (no surprise there!) so have been ordering out
> materials for HB coils, cans., etc.

I think that one reason drilling templates are hard to find is that there
are so many variations on these receivers that -- while seemingly minor --
turn out to more or less affect the layout.

To take the biggest example the receivers were designed around the MCN/ACN
(etc.) series of dials.   But as SSB progressively took charge of the ham
world, a better dial (more reduction) became almost essential and people
went in various directions.   Many used the Eddystone 898 but the price of
doing so was a major redesign of the chassis.   A few used command receiver
tuning caps; that was yet another totally different design.   Some did
various home made or adapted gear reduction schemes; some of these worked
with (roughly) the original layout and some did not.  Others went with
string drives ...

I've now built three HBRs.   None of them has the original type dial and not
a one is even close to the original layout.   One each: Command set, 898,
string drive ... they all work, but the layouts had to be different.

Then you add in the different types of IF cans used -- especially now, when
IFTs for this sort of design aren't off anyone's shelf, the choices of tube
types that weren't common in the late 50's-early 60's, much smaller
electrolytic caps ...

Even S-meters are often different now -- many of us would use smaller meters
than in the original W6TC design, meaning less clearance is required.

I think the best way forward is to find your parts first.   It is probably
best to avoid using parts nobody else has used for that job.   Then pick a
set of pictures on the HBR site -- every possible HBR design is there! --
and lay your parts out in a similar manner.   Take your ruler, mechanical
pencil, and a sheet of paper and start sketching, measuring and writing the
measurements on your sketch.   You will of course adjust many measurements
as you go: Spacing two parts by 63/64" makes no sense: you'll use 1"   As
you make these adjustments, relocate the parts on the chassis accordingly.

You'll also see opportunities to move a group of parts in line with one
another.    Doing so will look better and make layout both easier and less
error-prone.  

Follow the exact same steps with the front panel -- put parts on the panel,
measure, make dimensioned sketch.   Do it again for the rear apron of the
chassis.

When you have a sketch with dimensions, tape a piece of wrapping paper
tightly to the top of the chassis.  (Paper grocery bags work well.)   Take
your dimensioned sketch and lay that out on the papered chassis.   Do the
front panel the same way and prop the panel against the chassis.

Put all the parts in their marked locations and RETHINK EVERYTHING.   In
particular look for conflicts between stuff on top of the chassis and what's
under it, and between items in the front (and rear) panel and parts mounted
on the chassis that might project into the same space.   (Common example:
S-meter sticks back too far to allow putting the nearest tube in its socket.
Another:  Tuning capacitor shaft goes through one of your tubes or right
under the socket making wiring a real challenge.   Yet another: Fuseholder
on the rear panel collides with the bottom of your power transformer or a
choke you put under the chassis.)

Also think about replacing parts.   Okay, you have a used volume control.
It measures okay with an ohmmeter but what if it's seriously noisy?   Can
you get it out without removing the tuning cap which would require removing
the dial ... ?   

An advantage of (roughly) copying an existing design is that you shouldn't
have many such issues, but it never hurts to check.

The antenna and mixer coils must have a shield between them and it must be
bigger than you think.   The more space you can allow around the oscillator
coil the more stable the receiver will be.   KEEP HEAT SOURCES AS FAR AWAY
FROM THE OSC. COIL AS YOU CAN.   OR put a shield plate in between ...
Assuming you're copying a working design, the meaning of these cautions is
don't squeeze or adjust dimensions to give you a smaller shield or put the
antenna and mixer coils closer together than in the original.

Put a solid block under the chassis and centerpunch all the holes.   Start
drilling, smallest holes first.   (If you drill one too many, nothing is
hurt because you were going to drill that one larger anyhow.)   It's not a
bad idea to mark all the holes of one size in a distinctive manner -- say
with a dot of red magic marker.   Then drill those and mark the next batch.
Put your parts on the chassis a few times as you go, just to confirm ...

Don't try to do too much at one shot: Fatigue causes mistakes and a socket
hole punched where you were going to mount a shield plate is ... annoying.

Anyone can do this stuff.   If this is a first multi-tube project it will
pay handsomely to go slowly but you can get just as nice a result as someone
who has done several.

Walt
KJ4KV


From windy10605 at juno.com  Tue May 29 19:59:54 2012
From: windy10605 at juno.com (Kees & Sandy)
Date: Tue, 29 May 2012 23:59:54 GMT
Subject: [HBR] HBR Website
Message-ID: <20120529.185954.4265.2@webmail03.dca.untd.com>

Great info, Walt !
73 Kees K5BCQ



From LeeCraner at aol.com  Tue May 29 20:23:35 2012
From: LeeCraner at aol.com (LeeCraner at aol.com)
Date: Tue, 29 May 2012 20:23:35 -0400 (EDT)
Subject: [HBR] HBR Receivers being built?
Message-ID: <2071f.6ec3cabd.3cf6c286@aol.com>

Breck,
 
Feel free to lift the photos of my HBR-16 from my web site:
 
_http://www.emmittsfixitshop.com/Projects_HBR-16.html_ 
(http://www.emmittsfixitshop.com/Projects_HBR-16.html) 
 
73
Lee WB6SSW
 
 
In a message dated 5/29/2012 4:14:30 P.M. Pacific Daylight Time,  
smithab11 at comcast.net writes:

All  those with a HBR "QST" series  actually being build , take one 
step  forward, and send me
a picture, if I get enough pics  I will post it  to my web page.

breck k4che  

______________________________________________________________
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Home: http://mailman.qth.net/mailman/listinfo/hbr
Help:  http://mailman.qth.net/mmfaq.htm
Post:  mailto:HBR at mailman.qth.net

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From LeeCraner at aol.com  Tue May 29 20:30:57 2012
From: LeeCraner at aol.com (LeeCraner at aol.com)
Date: Tue, 29 May 2012 20:30:57 -0400 (EDT)
Subject: [HBR] HBR Website
Message-ID: <209e8.1093fb1d.3cf6c441@aol.com>

I agree, great reasoning and suggestions, Walt.  I'd add one more  reason 
not to use Ted's original templates:  they were designed for a more  compact 
HBR-16.  I continue to recommend using a larger 17x14x3 chassis and  19 x 8 
3/4 panel (standard rack chassis and panel).  You've got more  room to make 
changes and additions in the future and you'll be able to put it  all into a 
standard sized cabinet (e.g. Hallicrafters salvage).
 
73
Lee WB6SSW
 
 
In a message dated 5/29/2012 5:01:19 P.M. Pacific Daylight Time,  
windy10605 at juno.com writes:

Great  info, Walt !
73 Kees  K5BCQ


______________________________________________________________
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Home: http://mailman.qth.net/mailman/listinfo/hbr
Help:  http://mailman.qth.net/mmfaq.htm
Post:  mailto:HBR at mailman.qth.net

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Please help support this email list:  http://www.qsl.net/donate.html


From scriviamo at gmail.com  Wed May 30 12:13:31 2012
From: scriviamo at gmail.com (James Lee)
Date: Wed, 30 May 2012 09:13:31 -0700
Subject: [HBR] Drilling Templates found
Message-ID: <CAGjW3evT0Jg3QLbCv1hoR5NDHwARLaBZekT5VoVoV+rNT8Zu_w@mail.gmail.com>

I have located the drilling templates in the "HBR Deeluxe' article by Bill
Orr.
Thanks,
Jim

From ke9xq at charter.net  Wed May 30 12:28:02 2012
From: ke9xq at charter.net (William Wood)
Date: Wed, 30 May 2012 11:28:02 -0500
Subject: [HBR] Drilling Templates found
In-Reply-To: <CAGjW3evT0Jg3QLbCv1hoR5NDHwARLaBZekT5VoVoV+rNT8Zu_w@mail.gmail.com>
References: <CAGjW3evT0Jg3QLbCv1hoR5NDHwARLaBZekT5VoVoV+rNT8Zu_w@mail.gmail.com>
Message-ID: <BC123152-7B56-4015-9AFB-02B1B649F7EC@charter.net>

Jim
    Any chance that article is
on the Internet?  I might have
seen it, but if I did, I forgot : )
Glad you got your template.
73
Bill


On May 30, 2012, at 11:13 AM, James Lee wrote:

> I have located the drilling templates in the "HBR Deeluxe' article  
> by Bill
> Orr.
> Thanks,
> Jim
> ______________________________________________________________
> HBR mailing list
> Home: http://mailman.qth.net/mailman/listinfo/hbr
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:HBR at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html

If the grass is greener on the
other side of the fence, then
maybe you ain't watering
your own lawn...

Favorite Yahoo Groups...

http://groups.yahoo.com/group/OTR_and_Music/

http://groups.yahoo.com/group/Radio_Library/

Don't forget


http://www.archive.org/index.php





From rwfish at comcast.net  Wed May 30 13:12:31 2012
From: rwfish at comcast.net (Robert Fish)
Date: Wed, 30 May 2012 10:12:31 -0700
Subject: [HBR] Drilling Templates found
In-Reply-To: <BC123152-7B56-4015-9AFB-02B1B649F7EC@charter.net>
References: <CAGjW3evT0Jg3QLbCv1hoR5NDHwARLaBZekT5VoVoV+rNT8Zu_w@mail.gmail.com>
	<BC123152-7B56-4015-9AFB-02B1B649F7EC@charter.net>
Message-ID: <4FC654FF.4000202@comcast.net>

Her is a copy I found, but it is miserably slow to down load.

http://jlandrigan.com/files/Receivers/Orr%20Handbook%20HBR16.pdf

73,

Bob  K6GGO

> Jim
>      Any chance that article is
> on the Internet?  I might have
> seen it, but if I did, I forgot : )
> Glad you got your template.
> 73
> Bill
>
>
> On May 30, 2012, at 11:13 AM, James Lee wrote:
>
>> I have located the drilling templates in the "HBR Deeluxe' article
>> by Bill
>> Orr.
>> Thanks,
>> Jim
>> ______________________________________________________________
>> HBR mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/hbr
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:HBR at mailman.qth.net
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
> If the grass is greener on the
> other side of the fence, then
> maybe you ain't watering
> your own lawn...
>
> Favorite Yahoo Groups...
>
> http://groups.yahoo.com/group/OTR_and_Music/
>
> http://groups.yahoo.com/group/Radio_Library/
>
> Don't forget
>
>
> http://www.archive.org/index.php
>
>
>
>
> ______________________________________________________________
> HBR mailing list
> Home: http://mailman.qth.net/mailman/listinfo/hbr
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:HBR at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>


From gcromer at usit.net  Wed May 30 15:28:54 2012
From: gcromer at usit.net (Gerald K4NHN)
Date: Wed, 30 May 2012 15:28:54 -0400
Subject: [HBR] New HRR 16 Owner and intro
Message-ID: <267CB2593C084AD5BE9C1DDA3897D508@cromer>

Hello one and all. I think that I should do an intro to the group. I've been
a ham since about 1960 and was very active for many years, but in the past
several years I haven't been. There are many reasons, mostly age and my
wife's health. I'm more of a caregiver the past few years.

I use to do a lot of home brewing from transmitter to antennas.. I spent
over twenty years in the broadcast world as manager of transmitter
operations for the South Carolina Education Television Network. The PBS
system for SC. So I got to play with the big transmitters, up to 5 MW and
big antennas ... antenna's and transmitters were always fun to work with.

In my later years of hamming I was real active in the VHF and UHF and some
microwave frequencies and doing a lot of ATV work and worked up a special
antenna for ATV repeaters that got me a nice award from the Dayton Ham
convention in 1992 for my work on the antenna.

I've always wanted to build one of the HBR receivers but never got around to
it. I think trying to locate  all of the parts and also back then the money
was real short to a new family with a couple of kids. So I never made it,
but it always stuck back in the old brain cells about what I missed out on.

About 15 years ago at one of our local ham club meeting there was someone
getting rid of a lot of his gear and this receive was there. I missed out on
getting it but told the new owner to let me have first offer if he ever
decided to get rid of it, so that time came about a month ago.. But I did
have to pay a premium price to get it. But the construction was so
impressive that it made it all worth while. I have a lot of information on
the HBR receivers that I've collected over the many years of wanting one.

The receiver was built by K8KEG (SK) in the early 1960 and from the pictures
in the attachment you'll see some of the excellent workmanship that he did.
I'm not sure how it came to be in the Columbia, SC area for the past 15 to
25 years, but I hope that it's found a home for a while. At my age, 75, I'm
not sure how long that'll be. I'll be looking at all of the good information
that on the HBR web page over the next several weeks to try and catch up on
the HBR's.

http://www.medicalmissions-samoa.com/Gerald's_Spot/HBR-16%20RECEIVER%20BROCHURE%20PDF%20(1).pdf

73's for now
Gerald K4NHN
Cayce, SC


From jlandrigan at pol.net  Wed May 30 16:16:24 2012
From: jlandrigan at pol.net (John Landrigan)
Date: Wed, 30 May 2012 16:16:24 -0400
Subject: [HBR] New HRR 16 Owner and intro
In-Reply-To: <267CB2593C084AD5BE9C1DDA3897D508@cromer>
Message-ID: <2047140691.4731338408984055.JavaMail.root@zmcs02l-pol-08.portal.webmd.com>

Thanks for the layout photos and the coil diagram photo. This is a very nicely constructed version and continues my desire to get my version past the troubleshooting stage. The problem now is a non-oscillating HF oscillator. I still can't tell if it is a wiring issue or a coil winding issue. I thought I had the problem solved when I found a less than optimal soldering job on one of the coil pins but that wasn't the final answer.
John KA4RXP
----- Original Message -----
From: "Gerald K4NHN" <gcromer at usit.net>
To: HBR at mailman.qth.net
Sent: Wednesday, May 30, 2012 2:28:54 PM GMT -06:00 US/Canada Central
Subject: [HBR] New HRR 16 Owner and intro

Hello one and all. I think that I should do an intro to the group. I've been
a ham since about 1960 and was very active for many years, but in the past
several years I haven't been. There are many reasons, mostly age and my
wife's health. I'm more of a caregiver the past few years.

I use to do a lot of home brewing from transmitter to antennas.. I spent
over twenty years in the broadcast world as manager of transmitter
operations for the South Carolina Education Television Network. The PBS
system for SC. So I got to play with the big transmitters, up to 5 MW and
big antennas ... antenna's and transmitters were always fun to work with.

In my later years of hamming I was real active in the VHF and UHF and some
microwave frequencies and doing a lot of ATV work and worked up a special
antenna for ATV repeaters that got me a nice award from the Dayton Ham
convention in 1992 for my work on the antenna.

I've always wanted to build one of the HBR receivers but never got around to
it. I think trying to locate  all of the parts and also back then the money
was real short to a new family with a couple of kids. So I never made it,
but it always stuck back in the old brain cells about what I missed out on.

About 15 years ago at one of our local ham club meeting there was someone
getting rid of a lot of his gear and this receive was there. I missed out on
getting it but told the new owner to let me have first offer if he ever
decided to get rid of it, so that time came about a month ago.. But I did
have to pay a premium price to get it. But the construction was so
impressive that it made it all worth while. I have a lot of information on
the HBR receivers that I've collected over the many years of wanting one.

The receiver was built by K8KEG (SK) in the early 1960 and from the pictures
in the attachment you'll see some of the excellent workmanship that he did.
I'm not sure how it came to be in the Columbia, SC area for the past 15 to
25 years, but I hope that it's found a home for a while. At my age, 75, I'm
not sure how long that'll be. I'll be looking at all of the good information
that on the HBR web page over the next several weeks to try and catch up on
the HBR's.

http://www.medicalmissions-samoa.com/Gerald's_Spot/HBR-16%20RECEIVER%20BROCHURE%20PDF%20(1).pdf

73's for now
Gerald K4NHN
Cayce, SC

______________________________________________________________
HBR mailing list
Home: http://mailman.qth.net/mailman/listinfo/hbr
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:HBR at mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html



From waltah at earthlink.net  Wed May 30 18:52:59 2012
From: waltah at earthlink.net (Walt Hutchens)
Date: Wed, 30 May 2012 18:52:59 -0400
Subject: [HBR] New HRR 16 Owner and intro
In-Reply-To: <2047140691.4731338408984055.JavaMail.root@zmcs02l-pol-08.portal.webmd.com>
Message-ID: <CBEC1D0B.10CCB%waltah@earthlink.net>

John Landrigan posted:

> Thanks for the layout photos and the coil diagram photo. This is a very nicely
> constructed version and continues my desire to get my version past the
> troubleshooting stage. The problem now is a non-oscillating HF oscillator. I
> still can't tell if it is a wiring issue or a coil winding issue. I thought I
> had the problem solved when I found a less than optimal soldering job on one
> of the coil pins but that wasn't the final answer.

1.  Examine the coil winding.   Assuming it is the usual tickler feedback
design (just a few were built with Hartley oscillator circuits) then the
windings should go in the same direction from one end to the other of the
coil:  If clockwise when seen from the bottom as you go from bottom to top
of the lower winding then the upper winding should also go clockwise as you
continue upward.

The coil ends that are closest together should be at RF ground.   One will
be the B+ lead (bypassed to ground for RF) and the other will be the grid
return -- directly to ground or through a bypassed grid resistor; I don't
have the circuit in front of me.

Getting either one coil or the connections to one of them backward is a very
easy mistake to make.

2. Is the tube known to be good?

3.  Check the coil with an ohmmeter at the socket pins.   Also check
connections to the APC cap.

4.  Check all connections to the coil and tube sockets.   A connection that
was okay 50 years ago might not be, now.   (I've found them NEVER soldered,
even in military gear and of course this is common in Heathkits and homebrew
sets.)   

5. Check the connections to the tuning cap, including contact springs for
the rotor.   Irregular or measurable resistance in any of these places must
be fixed. 

6. Do ohmmeter checks out through the circuit to B+, etc.

7. Check the supply voltages to the tube on each of the pins.   Grid voltage
can be checked with a DVM through a 10k or so resistor.   If grid voltage
checked this way is close to zero the tube isn't oscillating; if it is -1 to
-5 volts or so then it IS oscillating.   If the plate voltage is low and the
tube isn't oscillating then you're most likely looking for an RF problem
along the lines suggested above.   If plate voltage is high and tube isn't
oscillating suspect a bad tube or a mistake or omission in your ohmmeter
checks ... is the grid resistor actually grounded?   Could it be open?
Stuff like that.  

These problems are frustrating, but they can always be found.

Walt 
KJ4KV


From jlandrigan at pol.net  Wed May 30 19:04:17 2012
From: jlandrigan at pol.net (John Landrigan)
Date: Wed, 30 May 2012 19:04:17 -0400
Subject: [HBR] New HRR 16 Owner and intro
In-Reply-To: <CBEC1D0B.10CCB%waltah@earthlink.net>
Message-ID: <1538039422.47381338419057931.JavaMail.root@zmcs02l-pol-08.portal.webmd.com>

Thanks for the suggestions, Walt.
I've been trying the same thing although not as systematically as you have laid out. I get frustrated too easily with the thing and call it quits until another time hoping the respite will allow me to look at things with a keener eye. I'll keep you posted.
John KA4RXP
----- Original Message -----
From: "Walt Hutchens" <waltah at earthlink.net>
To: "HBR Receiver List" <hbr at mailman.qth.net>
Sent: Wednesday, May 30, 2012 5:52:59 PM GMT -06:00 US/Canada Central
Subject: Re: [HBR] New HRR 16 Owner and intro

John Landrigan posted:

> Thanks for the layout photos and the coil diagram photo. This is a very nicely
> constructed version and continues my desire to get my version past the
> troubleshooting stage. The problem now is a non-oscillating HF oscillator. I
> still can't tell if it is a wiring issue or a coil winding issue. I thought I
> had the problem solved when I found a less than optimal soldering job on one
> of the coil pins but that wasn't the final answer.

1.  Examine the coil winding.   Assuming it is the usual tickler feedback
design (just a few were built with Hartley oscillator circuits) then the
windings should go in the same direction from one end to the other of the
coil:  If clockwise when seen from the bottom as you go from bottom to top
of the lower winding then the upper winding should also go clockwise as you
continue upward.

The coil ends that are closest together should be at RF ground.   One will
be the B+ lead (bypassed to ground for RF) and the other will be the grid
return -- directly to ground or through a bypassed grid resistor; I don't
have the circuit in front of me.

Getting either one coil or the connections to one of them backward is a very
easy mistake to make.

2. Is the tube known to be good?

3.  Check the coil with an ohmmeter at the socket pins.   Also check
connections to the APC cap.

4.  Check all connections to the coil and tube sockets.   A connection that
was okay 50 years ago might not be, now.   (I've found them NEVER soldered,
even in military gear and of course this is common in Heathkits and homebrew
sets.)   

5. Check the connections to the tuning cap, including contact springs for
the rotor.   Irregular or measurable resistance in any of these places must
be fixed. 

6. Do ohmmeter checks out through the circuit to B+, etc.

7. Check the supply voltages to the tube on each of the pins.   Grid voltage
can be checked with a DVM through a 10k or so resistor.   If grid voltage
checked this way is close to zero the tube isn't oscillating; if it is -1 to
-5 volts or so then it IS oscillating.   If the plate voltage is low and the
tube isn't oscillating then you're most likely looking for an RF problem
along the lines suggested above.   If plate voltage is high and tube isn't
oscillating suspect a bad tube or a mistake or omission in your ohmmeter
checks ... is the grid resistor actually grounded?   Could it be open?
Stuff like that.  

These problems are frustrating, but they can always be found.

Walt 
KJ4KV

______________________________________________________________
HBR mailing list
Home: http://mailman.qth.net/mailman/listinfo/hbr
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:HBR at mailman.qth.net

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Please help support this email list: http://www.qsl.net/donate.html



From ke9xq at charter.net  Wed May 30 22:46:11 2012
From: ke9xq at charter.net (William Wood)
Date: Wed, 30 May 2012 21:46:11 -0500
Subject: [HBR] Drilling Templates found
In-Reply-To: <4FC654FF.4000202@comcast.net>
References: <CAGjW3evT0Jg3QLbCv1hoR5NDHwARLaBZekT5VoVoV+rNT8Zu_w@mail.gmail.com>
	<BC123152-7B56-4015-9AFB-02B1B649F7EC@charter.net>
	<4FC654FF.4000202@comcast.net>
Message-ID: <4DFBC81A-1077-4E4C-B616-5D9A7360E85E@charter.net>

Thanks Bob
I just finished downloading
I have been collecting all this
info I can find you just never
know where you'll pick up the
next little tidbit that is worth
it's weight in gold : )
Thanks again
73
Bill  KE9XQ





On May 30, 2012, at 12:12 PM, Robert Fish wrote:

> Her is a copy I found, but it is miserably slow to down load.
>
> http://jlandrigan.com/files/Receivers/Orr%20Handbook%20HBR16.pdf
>
> 73,
>
> Bob  K6GGO
>
>> Jim
>>      Any chance that article is
>> on the Internet?  I might have
>> seen it, but if I did, I forgot : )
>> Glad you got your template.
>> 73
>> Bill
>>
>>
>> On May 30, 2012, at 11:13 AM, James Lee wrote:
>>
>>> I have located the drilling templates in the "HBR Deeluxe' article
>>> by Bill
>>> Orr.
>>> Thanks,
>>> Jim
>>> ______________________________________________________________
>>> HBR mailing list
>>> Home: http://mailman.qth.net/mailman/listinfo/hbr
>>> Help: http://mailman.qth.net/mmfaq.htm
>>> Post: mailto:HBR at mailman.qth.net
>>>
>>> This list hosted by: http://www.qsl.net
>>> Please help support this email list: http://www.qsl.net/donate.html
>> If the grass is greener on the
>> other side of the fence, then
>> maybe you ain't watering
>> your own lawn...
>>
>> Favorite Yahoo Groups...
>>
>> http://groups.yahoo.com/group/OTR_and_Music/
>>
>> http://groups.yahoo.com/group/Radio_Library/
>>
>> Don't forget
>>
>>
>> http://www.archive.org/index.php
>>
>>
>>
>>
>> ______________________________________________________________
>> HBR mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/hbr
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:HBR at mailman.qth.net
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>>
>
> ______________________________________________________________
> HBR mailing list
> Home: http://mailman.qth.net/mailman/listinfo/hbr
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:HBR at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html

If the grass is greener on the
other side of the fence, then
maybe you ain't watering
your own lawn...

Favorite Yahoo Groups...

http://groups.yahoo.com/group/OTR_and_Music/

http://groups.yahoo.com/group/Radio_Library/

Don't forget


http://www.archive.org/index.php





