From cerrogordo at iscweb.com  Tue Sep  1 20:58:51 2009
From: cerrogordo at iscweb.com (cerrogordo at iscweb.com)
Date: Tue, 01 Sep 2009 17:58:51 -0700
Subject: [HBR] HBR book "Recollections of a Radio Receiver"
Message-ID: <4A9DC34B.2030207@iscweb.com>

For those interested in acquiring my book "Recollections of a Radio
Receiver", the existing domestic (US) ordering window will remain open
until December 5  with ordering/payment and book delivery via US Postal
Service First Class Mail.  Arrangements have been made to supply books
to other countries in International Postal Zones 2 through 9 by use of
electronic ordering/payment and book delivery by International First
Class Mail (small package).  Go to my web site www.w6hht.com and click
on "Ordering Procedures" and "Book Notes" for details.  Jay Helms/w6hht


From py4qe at yahoo.com.br  Wed Sep  2 07:15:47 2009
From: py4qe at yahoo.com.br (Carlos Alberto - PY4QE)
Date: Wed, 2 Sep 2009 08:15:47 -0300
Subject: [HBR] New member from Brazil
References: <20090831.132934.28379.0@webmail19.dca.untd.com><002401ca2a7b$2a991560$fed7fea9@particul97f21d>
	<1661037473.20090831173700@earthlink.net>
Message-ID: <005701ca2bbe$b996d150$fed7fea9@particul97f21d>

Grateful for the good ideas people.

In fact the 2x4 +1 was the first project that I saw and has served as
inspiration.

>Walt said:
> A few things occur to me.
>
> 1. Vacuum tube auto radios were often built with 262 kcs IFs, thus
> junker auto sets from the 1950's-60's might be a source.
I saw this idea in the old posts and tried to find something here, but so
far nothing.

 2. Ham band only tuning (but not band imaging) is obtainable with the
> main tuning cap from an FM receiver, in the U.S., 88-108 Mcs.  Again,
> a junk set might provide what you need and (possibly) a dial mechanism
> that could be adapted.

I'm trying with colleagues from other cities, mainly in Sao Paulo.
Let's see what comes up. Here also the FM band is 88 to 108.

> 3. If you do 80-40M band imaging with an IF of 5500 kcs (or so) -- this
> requires a crystal filter of some sort, OR double conversion (...)

1700 kc was chose only because I have two crystals at this frequency. In
fact, I also saw a interesting receiver with 7 tubes, toroids in the
preselector and VFO, and a 7360 in the first mixer (George Dittmar - W0HIO).
Double conversion 1700 kc with crystal filter and two 455 kc IFT.
The idea of a low freq. 1st oscillator in the 1500-2000 kc range is very
good for the stability view.

> I have a set with this design which uses a push-pull oscillator
> driving a push pull mixer (both dual triodes) to give single-end IF
> output.

Are these common triodes like 12AT7 or 6J6s?

> This design does have a spurious response where the third harmonic of
> the oscillator passes through the 5500 kcs IF.

To avoid this, I think a 2nd LO xtal at 2155 kc is better than the 1245 kc
VFO from the original circuit.
It uses a VFO there for some sort of fine tune SSB clarifier. Since I'm
thinking in a xtal oscilattor, this clarifier will be in the main 5200~5700
kc VFO, because the BFO will be also a xtal at 453,5 kc.

> You could use a 2nd IF of 262 kcs using three auto radio IFTs and get
> tolerable performance -- perfectly adequate for AM, or (with audio
> filter) CW.  This would require one IF stage at 5500 with fairly high Q
> coils to control images.

If I get the 262 kc IFT, this is a good approach. Quite easy because custom
crystals here are cheap.

> I agree with Ian that the Super SimpleX and 2X4+1 designs are a useful
> starting point.

I also think, this was my first idea and within the philosophy of keeping
things simple, I think that is the way to go until I get more time and
skills.
And then I can try more complex projects. Let's see.

I thank all the ideas and suggestions and will keep you posted.

73, Carlos PY4QE


----- Original Message ----- 
From: "Walt Hutchens" <waltah at earthlink.net>
To: "HBR Receiver List" <hbr at mailman.qth.net>
Sent: Monday, August 31, 2009 6:37 PM
Subject: Re: [HBR] New member from Brazil


> Carlos said:
>> Like I said, the biggest problem here is to find all the parts, mainly a
>> adequate variable capacitor, trimmers and the dial.
>
> A few things occur to me.
--------snip---------- 

__________________________________________________
Fa?a liga??es para outros computadores com o novo Yahoo! Messenger 
http://br.beta.messenger.yahoo.com/ 

From rwbetts at sbcglobal.net  Mon Sep 14 21:49:10 2009
From: rwbetts at sbcglobal.net (Bob Betts)
Date: Mon, 14 Sep 2009 18:49:10 -0700 (PDT)
Subject: [HBR] HBR e-book
In-Reply-To: <6.2.1.2.2.20090825173553.03bd4b80@pop-server.nc.rr.com>
Message-ID: <901256.57091.qm@web83605.mail.sp1.yahoo.com>

Hello Jay and All:
I just wanted to thank you for that monumental piece of work that?I just slipped into the CD drive of my computer. It's truly an amazing collection. As a design engineer of over 40 years, I know how important it is to have all subject-relevant material available in one place. 
"Recollections of a Radio Receiver" accomplishes that quite well. It's educational, a concise reference, and just plain good reading.
Many thanks for a job well done,
?
Bob, N1KPR


http://www.bobsamerica.com
Music, Audio, Radio
"It's all good."

From n2apb at verizon.net  Fri Sep 25 17:04:58 2009
From: n2apb at verizon.net (George N2APB)
Date: Fri, 25 Sep 2009 17:04:58 -0400
Subject: [HBR] Article for HBR companion Tx from '62 Orr Handbook?
Message-ID: <C6E2A8BA.20793%n2apb@verizon.net>

Wonder if anyone has the Bill Orr handbook from ?62 (I think) in which there
was a homebrew Tx project billed as being a good companion to the HBR-16?
This was referenced in one of Kees Talon?s web pages/CD.  And if you have
that year of the handbook, I would love to get a copy of those pages for the
Tx project (and of course pay for the copies and mailing.)

While I?m here, I wanted to mention that I am so completely thrilled and
impressed with the CD-ROM book ?Recollections of a Radio Receiver? from Jay
Helms, W6HHT.  For the last 4-5 months, I?ve been in the process of
excitedly getting my parts together for constructing an HBR-16, and have
been carefully studying all the good information on the K5BCQ website and
CD-ROM.  So this this latest goldmine of info from Jay is a fabulous
addition to the history and technology background for the project ? if you
haven?t yet ordered the CD from Jay, you?re missing out on a great thing.

As an FYI, I?ve recently acquired a brand new Eddystone 898 dial, an
old-but-unused 75A-4 cabinet (plus a blank front panel!), and a set of 75A-4
knobs.  When the cabinet is sand blasted and finished with characteristic
black epoxy paint, I?m expecting my HBR-16 to be looking pretty nice.
Currently in the early stages of getting the mechanical parts together on
the two internal chassis.

Thanks in advance if you have that transmitter article in the Orr handbook.

73, George N2APB


From chal at pacbell.net  Fri Sep 25 20:01:13 2009
From: chal at pacbell.net (Charles McLaughlin)
Date: Fri, 25 Sep 2009 17:01:13 -0700
Subject: [HBR] Article for HBR companion Tx from '62 Orr Handbook?
In-Reply-To: <C6E2A8BA.20793%n2apb@verizon.net>
References: <C6E2A8BA.20793%n2apb@verizon.net>
Message-ID: <28520D11-CA73-45F8-8D3F-9F86104F9F7A@pacbell.net>

Hi George,

I have a couple of his handbooks.  Don't know if one is the '62 but  
IIRC it does have the companion HBT-200 (?) SSB TX.  I can check when  
I go back to work Monday.  Sigh.  In my wild youth I was going to  
pursue my ticket (USAF airborne radio repair and all WWII/Korean age  
equipment - just fell in love with it) but 'Nam wasn't conducive to  
follow through and then life happened.  Maybe someday I will actually  
do it.  In the meantime, I lurk on this site.  I'll let you know  
Monday what I have.

Chuck

On Sep 25, 2009, at 2:04 PM, George N2APB wrote:

> Wonder if anyone has the Bill Orr handbook from ?62 (I think) in  
> which there
> was a homebrew Tx project billed as being a good companion to the  
> HBR-16?
> This was referenced in one of Kees Talon?s web pages/CD.  And if you  
> have
> that year of the handbook, I would love to get a copy of those pages  
> for the
> Tx project (and of course pay for the copies and mailing.)
>
> While I?m here, I wanted to mention that I am so completely thrilled  
> and
> impressed with the CD-ROM book ?Recollections of a Radio Receiver?  
> from Jay
> Helms, W6HHT.  For the last 4-5 months, I?ve been in the process of
> excitedly getting my parts together for constructing an HBR-16, and  
> have
> been carefully studying all the good information on the K5BCQ  
> website and
> CD-ROM.  So this this latest goldmine of info from Jay is a fabulous
> addition to the history and technology background for the project ?  
> if you
> haven?t yet ordered the CD from Jay, you?re missing out on a great  
> thing.
>
> As an FYI, I?ve recently acquired a brand new Eddystone 898 dial, an
> old-but-unused 75A-4 cabinet (plus a blank front panel!), and a set  
> of 75A-4
> knobs.  When the cabinet is sand blasted and finished with  
> characteristic
> black epoxy paint, I?m expecting my HBR-16 to be looking pretty nice.
> Currently in the early stages of getting the mechanical parts  
> together on
> the two internal chassis.
>
> Thanks in advance if you have that transmitter article in the Orr  
> handbook.
>
> 73, George N2APB
>
> ______________________________________________________________
> 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



