From kenw8ek at gmail.com  Fri Jun  1 17:04:41 2018
From: kenw8ek at gmail.com (Ken, W8EK)
Date: Fri, 1 Jun 2018 17:04:41 -0400
Subject: [AMRadio] Icom Items FS
Message-ID: <48cd5648-6729-db6b-2d25-cd0da1b46eaa@gmail.com>



Screwdriver HF Mobile antenna controller, Mic Headset Combo,
mobile brackets, hand mic, cables, and other Icom items For Sale:
.

.
Screwdriver HF mobile antenna controller:

N2VZ TuneMatic Automatic Motorized Antenna Controller

This self-contained antenna controller will automatically
adjust the screwdriver antenna. It operates 1-60 MHz, and
keeps track of the parameters of the antenna. This one is
designed to be used with the Icom IC-7000, but can be
used with other rigs.

This one appears to be new, unused. With paper work for $210.
.

.
Heil Traveler 706 Headset/Mic

Everyone knows that Heil audio equipment is top of the
line. Use this unit to get exceptional audio quality.
It consists of a boom mic and single earphone, and
terminates in a round 8 pin connector. A 3 foot adapter
cable converts it to a modular connector for the Icom
7000/706. It is specifically made for Icom equipment.

It has a pod with PTT switch and up/down
switches. With paper work for $75.
.

.
Icom Mounting Brackets:

Icom MB-62 Mobile Bracket:

The MB-62 is the mobile mounting bracket that is
used for all of the Icom IC-706 series, IC-7000,
and others. Basically for any rig that is about
6 1/2 inches wide. It is also used with the AT-180
antenna tuner.

This one is NEW, still in its plastic inside the
original box, with all hardware. $28
.

Icom MB-51
This is an odd mounting bracket that is not often found
in ham circles. It can attach to a dash and swivel to
most any direction. It has a screw to take "head mounts"
such as the MB-63 for the IC-706. Basically it is an
additional way to mount a remote head. It is chrome
plated, and really looks great. $40
.

.
Icom HM-36 Hand Microphone

This is the standard hand microphone that comes with
many modern Icom rigs when new. It has a round 8 pin
connector, and also has up and down switches on top.
This one works fine and looks like new. $30
.

.
DC Power Cable

This is the heavy duty power cable as used on most of
the Icom HF rigs, plus also many Kenwood, Alinco, and others.
It has the 6 pin molex connector, with four pins used - two
for plus and two for ground.
It looks good, and of course works fine. $22
.

.
Modular to 8 pin cable

This cable has a modular flat 8 pin plug on one end and
the standard round 8 pin connector on the other end.

It is a "one to one" cable, in that pin 1 on the modular
connector goes to pin 1 on the round 8 pin connector, pin
2 to pin 2, etc.

This type cable is often used for digital interfaces (such
as West Mountain RigBlastrers, or Tigertronics SignaLinks),
however can be used for other purposes.

This one works and looks fine.  Only $12.
.

.
Cable for Icom Transceiver to Digital Controller:

The package says "The Country Ham RTC2-Ic", TNC-Radio
Cable w/ DIN and Mike Plug. For use with MFJ, AEA, and
PacComm TNCs using a 5 pin DIN plug. The opposite
end has a round Icom 8 pin connector as used on most
Icom rigs. Pin outs are listed on the label.

There is also an attached cable with 1/8 inch plug to
go to the speaker jack.

This cable is apparently new, still in its original bag.

Only $12
.

.
Cable for computer control of your transceiver:

This cable was used to create computer control
of an Icom IC-706 Mk II G. It probably will work
with other Icom rigs as well as the IC-706, and
probably any ham rig that needs an 1/8 inch plug
for computer control.

It has a USB connector on one end, and a 3.5 mm
plug to plug into the rig on the other end.

Only $20.
.

.
I also have many other accessories of many different
brands available.
Just too many to list here. Please e-mail your requests.

.
Prices do not include shipping from Florida.

Thanks.

73,

Ken, W8EK

Ken Simpson
E-mail to W8EK at FLHam.net or W8EK at arrl.net
Voice Phone (352) 732-8400



.




.

From ne1s at securespeed.us  Sun Jun 10 08:05:52 2018
From: ne1s at securespeed.us (Larry Szendrei)
Date: Sun, 10 Jun 2018 08:05:52 -0400
Subject: [AMRadio] OT - TS-440S question
Message-ID: <f7a98698-1aa2-fb43-2797-8879294ec604@securespeed.us>

Please excuse the off-topic post.

I have a Kenwood TS-440S which I bought brand new in the mid 1980s.

This morning I was repeatedly manually scanning up and down the band* 
with the main tuning knob, and it quite rapidly started to turn harder 
and harder. Now it almost takes a wrench to turn it. :-(

Anyone run into this before, and know how to fix it?

* I was playing around giving out a few points in the June VHF contest, 
using the 440 in conjunction with the Hallicrafters HA-6 and HA-2 
transverters.

73 and TNX,
-Larry/NE1S


From mjcal77 at yahoo.com  Sun Jun 10 09:54:47 2018
From: mjcal77 at yahoo.com (CL in NC)
Date: Sun, 10 Jun 2018 13:54:47 +0000 (UTC)
Subject: [AMRadio] 3 sets of Collins
References: <1202489966.2623769.1528638887544.ref@mail.yahoo.com>
Message-ID: <1202489966.2623769.1528638887544@mail.yahoo.com>

 A fellow on ebay in NYC has 3 sets of Gold Dust Twins starting at $2500 each on the bid.  Now's you chance...

https://www.ebay.com/itm/BEAUTIFUL-WORKING-FROM-K6DPZ-COLLINS-GOLD-DUST-TWINS-75A4-KWS-1-NEW-SPARE-TUBES/163088565613?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2055119.m1438.l2649

Charlie, W4MEC in NC

From w3slk at verizon.net  Sun Jun 10 10:18:46 2018
From: w3slk at verizon.net (Mike Sawyer)
Date: Sun, 10 Jun 2018 10:18:46 -0400
Subject: [AMRadio] 3 sets of Collins
In-Reply-To: <1202489966.2623769.1528638887544@mail.yahoo.com>
References: <1202489966.2623769.1528638887544.ref@mail.yahoo.com>
	<1202489966.2623769.1528638887544@mail.yahoo.com>
Message-ID: <000801d400c5$f2574570$d705d050$@verizon.net>

I think I would be very leery about this sale. To me, looking at his past
deals, comments, and other things, it doesn't pass the 'smell test'. 
Sorry, but that is the cynic in me!

Mod-U-Lator,
Mike(y)/W3SLK



-----Original Message-----
From: amradio-bounces at mailman.qth.net
[mailto:amradio-bounces at mailman.qth.net] On Behalf Of CL in NC via AMRadio
Sent: Sunday, June 10, 2018 9:55 AM
To: amradio at mailman.qth.net
Subject: [AMRadio] 3 sets of Collins

 A fellow on ebay in NYC has 3 sets of Gold Dust Twins starting at $2500
each on the bid.  Now's you chance...

https://www.ebay.com/itm/BEAUTIFUL-WORKING-FROM-K6DPZ-COLLINS-GOLD-DUST-TWIN
S-75A4-KWS-1-NEW-SPARE-TUBES/163088565613?ssPageName=STRK%3AMEBIDX%3AIT&_trk
sid=p2055119.m1438.l2649

Charlie, W4MEC in NC
______________________________________________________________
Our Main Website: http://www.amfone.net
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This list hosted by: http://www.qsl.net
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Message delivered to w3slk at verizon.net


From mjcal77 at yahoo.com  Sun Jun 10 10:36:21 2018
From: mjcal77 at yahoo.com (CL in NC)
Date: Sun, 10 Jun 2018 14:36:21 +0000 (UTC)
Subject: [AMRadio] 3 Sets of Gold Dust
References: <1659433155.2648706.1528641381700.ref@mail.yahoo.com>
Message-ID: <1659433155.2648706.1528641381700@mail.yahoo.com>

I also sent the info to the CCA, those fellows will surely know about the gears lineage, probably down to the SN's and who owned them,  and whether the seller has a history of shady deals.  If anything noteworthy comes from them, I'll let you know.

Charlie W4MEC in NC

From mjcal77 at yahoo.com  Sun Jun 10 10:37:40 2018
From: mjcal77 at yahoo.com (CL in NC)
Date: Sun, 10 Jun 2018 14:37:40 +0000 (UTC)
Subject: [AMRadio] 3 Sets of Gold Dust - First response
References: <227164261.2661801.1528641460644.ref@mail.yahoo.com>
Message-ID: <227164261.2661801.1528641460644@mail.yahoo.com>

Just got this:

"Hi Charlie. That's Hal Guretsky in NYC. He's a liar, thief, and cheat, but other than that a nice guy."


From ars.w5omr at gmail.com  Sun Jun 10 12:52:44 2018
From: ars.w5omr at gmail.com (ARS W5OMR)
Date: Sun, 10 Jun 2018 11:52:44 -0500
Subject: [AMRadio] OT - TS-440S question
In-Reply-To: <f7a98698-1aa2-fb43-2797-8879294ec604@securespeed.us>
References: <f7a98698-1aa2-fb43-2797-8879294ec604@securespeed.us>
Message-ID: <CAOhDOk0+ue4DA9nYrMbd6tWvjK1rmJ8skDEvcAajcask921rLw@mail.gmail.com>

Some of those rigs, Larry, have a 'back ring' that you can tighten or
loosen to change the action on the tuning knob.  That, or maybe the piece
of felt behind the knob finally balled up and got bigger and bigger.

Get yer allen wrench out and remove that assembly and see what's up.


On Sun, Jun 10, 2018 at 7:05 AM, Larry Szendrei <ne1s at securespeed.us> wrote:

> Please excuse the off-topic post.
>
> I have a Kenwood TS-440S which I bought brand new in the mid 1980s.
>
> This morning I was repeatedly manually scanning up and down the band* with
> the main tuning knob, and it quite rapidly started to turn harder and
> harder. Now it almost takes a wrench to turn it. :-(
>
> Anyone run into this before, and know how to fix it?
>
> * I was playing around giving out a few points in the June VHF contest,
> using the 440 in conjunction with the Hallicrafters HA-6 and HA-2
> transverters.
>
> 73 and TNX,
> -Larry/NE1S
>
> ______________________________________________________________
> Our Main Website: http://www.amfone.net
> AMRadio mailing list
> Archives: http://mailman.qth.net/pipermail/amradio/
> List Rules (must read!): http://w5ami.net/amradiofaq.html
> List Home: http://mailman.qth.net/mailman/listinfo/amradio
> Post: AMRadio at mailman.qth.net
> To unsubscribe, send an email to amradio-request at mailman.qth.net with
> the word unsubscribe in the message body.
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to ars.w5omr at gmail.com
>



-- 
Operating your AM rig without a scope is like driving our car at night
without headlights. (~K4KYV)

73 = Best Regards,
-Geoff/W5OMR

From w3slk at verizon.net  Sun Jun 10 19:40:33 2018
From: w3slk at verizon.net (Mike Sawyer)
Date: Sun, 10 Jun 2018 19:40:33 -0400
Subject: [AMRadio] OT - TS-440S question
In-Reply-To: <CAOhDOk0+ue4DA9nYrMbd6tWvjK1rmJ8skDEvcAajcask921rLw@mail.gmail.com>
References: <f7a98698-1aa2-fb43-2797-8879294ec604@securespeed.us>
	<CAOhDOk0+ue4DA9nYrMbd6tWvjK1rmJ8skDEvcAajcask921rLw@mail.gmail.com>
Message-ID: <000001d40114$6ddd7270$49985750$@verizon.net>

I don' t know if this is the case but I have ran into issues at my workplace
where a highly polished shaft will bind and occasionally snap when going
through a bronze bushing. We have housings that sit on top of valve
actuators. The housings have confirmation switches inside. There are 2
bushings. I am sometimes amazed at how much they bind in such short amount
of travel!

Mod-U-Lator,
Mike(y)/W3SLK



-----Original Message-----
Some of those rigs, Larry, have a 'back ring' that you can tighten or
loosen to change the action on the tuning knob.  That, or maybe the piece
of felt behind the knob finally balled up and got bigger and bigger.

Get yer allen wrench out and remove that assembly and see what's up.


On Sun, Jun 10, 2018 at 7:05 AM, Larry Szendrei <ne1s at securespeed.us> wrote:

> Please excuse the off-topic post.
>
> I have a Kenwood TS-440S which I bought brand new in the mid 1980s.
>
> This morning I was repeatedly manually scanning up and down the band* with
> the main tuning knob, and it quite rapidly started to turn harder and
> harder. Now it almost takes a wrench to turn it. :-(
>
> Anyone run into this before, and know how to fix it?
>
> * I was playing around giving out a few points in the June VHF contest,
> using the 440 in conjunction with the Hallicrafters HA-6 and HA-2
> transverters.
>
> 73 and TNX,
> -Larry/NE1S
>


From ne1s at securespeed.us  Sun Jun 10 21:03:23 2018
From: ne1s at securespeed.us (Larry Szendrei)
Date: Sun, 10 Jun 2018 21:03:23 -0400
Subject: [AMRadio] OT - TS-440S question
In-Reply-To: <CAOhDOk0+ue4DA9nYrMbd6tWvjK1rmJ8skDEvcAajcask921rLw@mail.gmail.com>
References: <f7a98698-1aa2-fb43-2797-8879294ec604@securespeed.us>
	<CAOhDOk0+ue4DA9nYrMbd6tWvjK1rmJ8skDEvcAajcask921rLw@mail.gmail.com>
Message-ID: <63cfc615-fa63-6620-4173-845bd8f45d76@securespeed.us>

Thanks, Geoff. I'll be looking into it at my first convenience - today 
was spent on outside projects, as it was a perfectly spectacular day 
WX-wise here, and there was lots to do (still is!).

I got a response on the Kenwood list at qth.com from a guy who does 
Kenwood repair - he thinks the shaft/bushing has galled, and, 
unfortunately, I think he's right. He says I MAY be able to loosen it up 
by coaxing a drop or two of light machine oil between the shaft and 
bushing and working it. After removing the knob, of course.

Hope all is well with you, KA5SSY, and the harmonic.

73,
-Larry/NE1S

On 6/10/18 12:52 PM, ARS W5OMR wrote:
> Some of those rigs, Larry, have a 'back ring' that you can tighten or 
> loosen to change the action on the tuning knob.? That, or maybe the 
> piece of felt behind the knob finally balled up and got bigger and 
> bigger.
>
> Get yer allen wrench out and remove that assembly and see what's up.
>
>
> On Sun, Jun 10, 2018 at 7:05 AM, Larry Szendrei <ne1s at securespeed.us 
> <mailto:ne1s at securespeed.us>> wrote:
>
>     Please excuse the off-topic post.
>
>     I have a Kenwood TS-440S which I bought brand new in the mid 1980s.
>
>     This morning I was repeatedly manually scanning up and down the
>     band* with the main tuning knob, and it quite rapidly started to
>     turn harder and harder. Now it almost takes a wrench to turn it. :-(
>
>     Anyone run into this before, and know how to fix it?
>
>     * I was playing around giving out a few points in the June VHF
>     contest, using the 440 in conjunction with the Hallicrafters HA-6
>     and HA-2 transverters.
>
>     73 and TNX,
>     -Larry/NE1S
>
>     ______________________________________________________________
>     Our Main Website: http://www.amfone.net
>     AMRadio mailing list
>     Archives: http://mailman.qth.net/pipermail/amradio/
>     <http://mailman.qth.net/pipermail/amradio/>
>     List Rules (must read!): http://w5ami.net/amradiofaq.html
>     <http://w5ami.net/amradiofaq.html>
>     List Home: http://mailman.qth.net/mailman/listinfo/amradio
>     <http://mailman.qth.net/mailman/listinfo/amradio>
>     Post: AMRadio at mailman.qth.net <mailto:AMRadio at mailman.qth.net>
>     To unsubscribe, send an email to amradio-request at mailman.qth.net
>     <mailto:amradio-request at mailman.qth.net> with
>     the word unsubscribe in the message body.
>
>     This list hosted by: http://www.qsl.net
>     Please help support this email list: http://www.qsl.net/donate.html
>     Message delivered to ars.w5omr at gmail.com <mailto:ars.w5omr at gmail.com>
>
>
>
>
> -- 
> Operating your AM rig without a scope is like driving our car at night 
> without headlights. (~K4KYV)
>
> 73 = Best Regards,
> -Geoff/W5OMR



From robertisselhard at gmail.com  Sun Jun 10 21:11:52 2018
From: robertisselhard at gmail.com (Robert Isselhard)
Date: Sun, 10 Jun 2018 19:11:52 -0600
Subject: [AMRadio] OT - TS-440S question
In-Reply-To: <63cfc615-fa63-6620-4173-845bd8f45d76@securespeed.us>
References: <f7a98698-1aa2-fb43-2797-8879294ec604@securespeed.us>
	<CAOhDOk0+ue4DA9nYrMbd6tWvjK1rmJ8skDEvcAajcask921rLw@mail.gmail.com>
	<63cfc615-fa63-6620-4173-845bd8f45d76@securespeed.us>
Message-ID: <B3695F40-70C8-4E25-9EAA-2361155C3D0A@gmail.com>

I had the same thing happen as rapidly as you did but with my Yaesu FT-920.   Same cause:   Galled shaft and congealed grease.   I had to disassemble the entire encoder assembly to get the shaft out to polish it and the inside of the brass collar around it.   Hope you don?t have to disassemble that much.   73,   Bob. K5INW

Sent from my iPhone

> On Jun 10, 2018, at 7:03 PM, Larry Szendrei <ne1s at securespeed.us> wrote:
> 
> Thanks, Geoff. I'll be looking into it at my first convenience - today was spent on outside projects, as it was a perfectly spectacular day WX-wise here, and there was lots to do (still is!).
> 
> I got a response on the Kenwood list at qth.com from a guy who does Kenwood repair - he thinks the shaft/bushing has galled, and, unfortunately, I think he's right. He says I MAY be able to loosen it up by coaxing a drop or two of light machine oil between the shaft and bushing and working it. After removing the knob, of course.
> 
> Hope all is well with you, KA5SSY, and the harmonic.
> 
> 73,
> -Larry/NE1S
> 
>> On 6/10/18 12:52 PM, ARS W5OMR wrote:
>> Some of those rigs, Larry, have a 'back ring' that you can tighten or loosen to change the action on the tuning knob.  That, or maybe the piece of felt behind the knob finally balled up and got bigger and bigger.
>> 
>> Get yer allen wrench out and remove that assembly and see what's up.
>> 
>> 
>> On Sun, Jun 10, 2018 at 7:05 AM, Larry Szendrei <ne1s at securespeed.us <mailto:ne1s at securespeed.us>> wrote:
>> 
>>    Please excuse the off-topic post.
>> 
>>    I have a Kenwood TS-440S which I bought brand new in the mid 1980s.
>> 
>>    This morning I was repeatedly manually scanning up and down the
>>    band* with the main tuning knob, and it quite rapidly started to
>>    turn harder and harder. Now it almost takes a wrench to turn it. :-(
>> 
>>    Anyone run into this before, and know how to fix it?
>> 
>>    * I was playing around giving out a few points in the June VHF
>>    contest, using the 440 in conjunction with the Hallicrafters HA-6
>>    and HA-2 transverters.
>> 
>>    73 and TNX,
>>    -Larry/NE1S
>> 
>>    ______________________________________________________________
>>    Our Main Website: http://www.amfone.net
>>    AMRadio mailing list
>>    Archives: http://mailman.qth.net/pipermail/amradio/
>>    <http://mailman.qth.net/pipermail/amradio/>
>>    List Rules (must read!): http://w5ami.net/amradiofaq.html
>>    <http://w5ami.net/amradiofaq.html>
>>    List Home: http://mailman.qth.net/mailman/listinfo/amradio
>>    <http://mailman.qth.net/mailman/listinfo/amradio>
>>    Post: AMRadio at mailman.qth.net <mailto:AMRadio at mailman.qth.net>
>>    To unsubscribe, send an email to amradio-request at mailman.qth.net
>>    <mailto:amradio-request at mailman.qth.net> with
>>    the word unsubscribe in the message body.
>> 
>>    This list hosted by: http://www.qsl.net
>>    Please help support this email list: http://www.qsl.net/donate.html
>>    Message delivered to ars.w5omr at gmail.com <mailto:ars.w5omr at gmail.com>
>> 
>> 
>> 
>> 
>> -- 
>> Operating your AM rig without a scope is like driving our car at night without headlights. (~K4KYV)
>> 
>> 73 = Best Regards,
>> -Geoff/W5OMR
> 
> 
> ______________________________________________________________
> Our Main Website: http://www.amfone.net
> AMRadio mailing list
> Archives: http://mailman.qth.net/pipermail/amradio/
> List Rules (must read!): http://w5ami.net/amradiofaq.html
> List Home: http://mailman.qth.net/mailman/listinfo/amradio
> Post: AMRadio at mailman.qth.net
> To unsubscribe, send an email to amradio-request at mailman.qth.net with
> the word unsubscribe in the message body.
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to robertisselhard at gmail.com

From mjcal77 at yahoo.com  Mon Jun 11 10:31:56 2018
From: mjcal77 at yahoo.com (CL in NC)
Date: Mon, 11 Jun 2018 14:31:56 +0000 (UTC)
Subject: [AMRadio] Comment and a question
References: <1971298312.3074606.1528727516750.ref@mail.yahoo.com>
Message-ID: <1971298312.3074606.1528727516750@mail.yahoo.com>

My buddies on our Sunday net were commenting on a story I wrote that was apparently printed in the June ER mag.  I haven't got mine yet, so didn't know about it.  It is the one I wrote several years ago about ham radio history and going to a hamfest looking at stuff.  I actually wrote this with the modern ham in mind that seem to be missing radio and ham history knowledge, something the majority of ER readers really didn't need.  I submitted it to QST but got a rejection letter that said, "Not of interest to our current readership..."  Heck, I though it would help some of those folks, oh well.  So, sent it along to ER, guess they needed a bit more to round out the mag for June.

I have been looking at a Hallicrafters SX130 on line that seems worthy of fixing up, but, the original Halli ad, the write ups on the internet, all say it is a BC band to 30MC receiver.  The front panel slide rule dial has 80-10 meters with a little overage past the band edges, but no BC band.  I don't think the little bit of overage past the band edges really qualifies it for general coverage, the ad does say, "The popular SW bands...", but is missing most of the really active SW bands.  If you have one of these, where is the BC band on the dial?

Charlie , W4MEC in NC

From macklinbob at gmail.com  Mon Jun 11 10:52:29 2018
From: macklinbob at gmail.com (K5MYJ)
Date: Mon, 11 Jun 2018 07:52:29 -0700
Subject: [AMRadio] Comment and a question
References: <1971298312.3074606.1528727516750.ref@mail.yahoo.com>
	<1971298312.3074606.1528727516750@mail.yahoo.com>
Message-ID: <5F95CEC65BF74329B41D9EA4856BC4A1@IVORYTOWER>

The SX-130 has two dials. The small rotary dial is the GC dial. The larger 
SLIDERULE dial is HAM BAND only.

The SX-130 is an update of the SX-110. The SX-110 is an update of the SX-99. 
The SX-99 had two ROTARY dials.


----- Original Message ----- 
From: "CL in NC via AMRadio" <amradio at mailman.qth.net>
To: <amradio at mailman.qth.net>
Sent: Monday, June 11, 2018 7:31 AM
Subject: [AMRadio] Comment and a question


> My buddies on our Sunday net were commenting on a story I wrote that was 
> apparently printed in the June ER mag.  I haven't got mine yet, so didn't 
> know about it.  It is the one I wrote several years ago about ham radio 
> history and going to a hamfest looking at stuff.  I actually wrote this 
> with the modern ham in mind that seem to be missing radio and ham history 
> knowledge, something the majority of ER readers really didn't need.  I 
> submitted it to QST but got a rejection letter that said, "Not of interest 
> to our current readership..."  Heck, I though it would help some of those 
> folks, oh well.  So, sent it along to ER, guess they needed a bit more to 
> round out the mag for June.
>
> I have been looking at a Hallicrafters SX130 on line that seems worthy of 
> fixing up, but, the original Halli ad, the write ups on the internet, all 
> say it is a BC band to 30MC receiver.  The front panel slide rule dial has 
> 80-10 meters with a little overage past the band edges, but no BC band.  I 
> don't think the little bit of overage past the band edges really qualifies 
> it for general coverage, the ad does say, "The popular SW bands...", but 
> is missing most of the really active SW bands.  If you have one of these, 
> where is the BC band on the dial?
>
> Charlie , W4MEC in NC
> ______________________________________________________________
> Our Main Website: http://www.amfone.net
> AMRadio mailing list
> Archives: http://mailman.qth.net/pipermail/amradio/
> List Rules (must read!): http://w5ami.net/amradiofaq.html
> List Home: http://mailman.qth.net/mailman/listinfo/amradio
> Post: AMRadio at mailman.qth.net
> To unsubscribe, send an email to amradio-request at mailman.qth.net with
> the word unsubscribe in the message body.
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to macklinbob at gmail.com 


From ranickel at comcast.net  Mon Jun 11 11:16:46 2018
From: ranickel at comcast.net (Robert Nickels)
Date: Mon, 11 Jun 2018 10:16:46 -0500
Subject: [AMRadio] Comment and a question
In-Reply-To: <1971298312.3074606.1528727516750@mail.yahoo.com>
References: <1971298312.3074606.1528727516750.ref@mail.yahoo.com>
	<1971298312.3074606.1528727516750@mail.yahoo.com>
Message-ID: <7a70a36b-8fee-342a-63d9-ff39febf4394@comcast.net>

On 6/11/2018 9:31 AM, CL in NC via AMRadio wrote:
>   The front panel slide rule dial has 80-10 meters with a little overage past the band edges, but no BC band

Hi Charlie,

Just to be clear, like? the SX-110 I used as a Novice over 50 years 
ago,? the main tuning dial is set to the position indicated by a dot for 
each of the ham bands which can then be tuned more easily using the 
slide-rule bandspread dial (the SX-99's rotary dials worked the same 
way).??? Of course the accuracy of the slide rule dial depended on the 
calibration of the receiver and how closely one could set the correct 
reference position - a crystal calibrator made this an easy process but 
since these were lower priced receivers, Hallicrafters did not include 
one.??? Those of us who didn't have an outboard one got adept at setting 
the bandspread dial using known reference signals - like the old 
buzzards who always sat on the same frequency ;-)

The bandspread tuning is active on all frequencies but there is no 
calibration, just the 0-100 Logging Scale.? Again, if you had a crystal 
calibrator to set the main tuning at a known point the logging scale 
made it possible to return to a given SW or BC band frequency with some 
degree of repeatability.

73, Bob W9RAN


From K4TQF at yahoo.com  Tue Jun 12 09:44:19 2018
From: K4TQF at yahoo.com (Mike Durff)
Date: Tue, 12 Jun 2018 13:44:19 +0000 (UTC)
Subject: [AMRadio] SAQ & SK6SAQ on the air July, 1st
References: <1055391149.4081788.1528811059543.ref@mail.yahoo.com>
Message-ID: <1055391149.4081788.1528811059543@mail.yahoo.com>

No, this is not AM, just a reminder for those who may be interested in some rare DX from the world's oldest CW station on 17.2 KHZ. Don't have a VLF receiver? download a free one here: ( no spam or popups )
SAQrx VLF Receiver - SM6LKM
  
|  
|   
|   
|   |    |

   |

  |
|  
|    |  
SAQrx VLF Receiver - SM6LKM
   |   |

  |

  |

 
The SM6KLM software uses your PC sound card as the receiver mic in = antenna in
Amateur Radio Station with the call ?SK6SAQ? will be QRV on the following frequencies:
? 7.035 kHz CW or
? 14.035 kHz CW or
? 3.755 kHz SSBTwo stations will be on the air most of the time

Don't know about SAQ? See here:?
The Alexander association ? Grimeton SAQ veteran radio friends
  
|  
|   
|   
|   |    |

   |

  |
|  
|   |  
The Alexander association ? Grimeton SAQ veteran radio friends
   |   |

  |

  |

 
Thanks, Durff, K4TQF

From mjcal77 at yahoo.com  Tue Jun 12 10:57:18 2018
From: mjcal77 at yahoo.com (CL in NC)
Date: Tue, 12 Jun 2018 14:57:18 +0000 (UTC)
Subject: [AMRadio] SAQ on the air
References: <66970563.3769601.1528815438955.ref@mail.yahoo.com>
Message-ID: <66970563.3769601.1528815438955@mail.yahoo.com>

One thing about over the pond, they like to preserve their history, while in the US it mostly goes to the scrapper to be made into rebar. Where in the US is a museum that keeps something like this up and running?  https://www.youtube.com/watch?v=KhlJp1VZMB8

Charlie, W4MEC in NC

From mjcal77 at yahoo.com  Wed Jun 13 10:08:47 2018
From: mjcal77 at yahoo.com (CL in NC)
Date: Wed, 13 Jun 2018 14:08:47 +0000 (UTC)
Subject: [AMRadio] Reduce relay contact arc
References: <67308528.2189138.1528898927487.ref@mail.yahoo.com>
Message-ID: <67308528.2189138.1528898927487@mail.yahoo.com>

If you have a relay that is switching line voltage or higher AC voltage, is there any way to reduce the arcing?  You might suggest a snubber, but if you use the snubber formula to calculate component sizes, the capacitor allows enough AC to pass such that your transformer is making volts.  You put it on the primary of say a HV B+ PS, and you will get some amount of B+ on the secondary, and if you put it in the secondary HV line, you will leak AC into the rectifiers and still make B+.  Any solutions other that something like a .01 across the contacts and live with it?

Charlie, W4MEC in NC

From ranchorobbo at gmail.com  Wed Jun 13 12:13:38 2018
From: ranchorobbo at gmail.com (Rob Atkinson)
Date: Wed, 13 Jun 2018 11:13:38 -0500
Subject: [AMRadio] Reduce relay contact arc
In-Reply-To: <67308528.2189138.1528898927487@mail.yahoo.com>
References: <67308528.2189138.1528898927487.ref@mail.yahoo.com>
	<67308528.2189138.1528898927487@mail.yahoo.com>
Message-ID: <CALWD7Z5PKkFcEkVGMo_CmfJ=0NmYoP41+19eCj46Ey8v+8dGmQ@mail.gmail.com>

I went through this a few years ago.   The usual solutions are
snubber, inrush limiter with a resistor, or a thermistor.   The all
work to some degree but in different ways and circumstances.  A
thermistor works, but runs hot and won't do anything if the relay is
closed and opened repeatedly before the thermistor can cool down to
recycle.   All these methods may or may not prevent arcing on break.
I wound up using a solid state hocky puck SPST circuit.

73

Rob
K5UJ

On Wed, Jun 13, 2018 at 9:08 AM, CL in NC via AMRadio
<amradio at mailman.qth.net> wrote:
> If you have a relay that is switching line voltage or higher AC voltage, is there any way to reduce the arcing?  You might suggest a snubber, but if you use the snubber formula to calculate component sizes, the capacitor allows enough AC to pass such that your transformer is making volts.  You put it on the primary of say a HV B+ PS, and you will get some amount of B+ on the secondary, and if you put it in the secondary HV line, you will leak AC into the rectifiers and still make B+.  Any solutions other that something like a .01 across the contacts and live with it?
>
> Charlie, W4MEC in NC

From kenw8ek at gmail.com  Wed Jun 13 13:30:23 2018
From: kenw8ek at gmail.com (Ken, W8EK)
Date: Wed, 13 Jun 2018 13:30:23 -0400
Subject: [AMRadio] VHF and UHF Antennas FS
Message-ID: <40787385-ccc1-6ca5-ca52-aee58febfbae@gmail.com>


VHF and UHF Antennas For Sale:
.

.
Diamond D130J Super Discone Antenna:

The D130J Super Discone Antenna is an ultra-wideband
antenna covering amateur radio, commercial 2-way,
cellular, air traffic control, various utility frequency
and public service bands from 25 to 1300 MHz.

Features:
? Ultra-wideband design 25 to 1300 MHz receive,
50-1300 MHz transmit (6m tunable for transmit)
? Compact and lightweight design enables antenna to be
installed on balcony railing at an apartment or condominium
? Ideal for 2m, 1-1/4m, 70cm, 33cm and 23cm amateur bands
? Excellent "shop" antenna for testing various transmitters
on a single coax

Bands: 25-1300 MHz
Gain dBi: 2 (nominal)
Max Power Rating: 144 MHz up: 200 watts
6m: 20 watts FM, 50 watts PEP
Height: 5.6'
Weight: 2.2 Lbs
Connector: UHF
Element Phasing: Wideband Discone

This one is new, still in its original package.
Amazon and HRO sell these for $95. Buy this one for $75.
.

.
Diamond M 285 S, 2 meter mobile antenna:

The Diamond M 285 S is a 2 meter, 5/8 wave, 3 db gain,
mobile antenna. It has a PL-259 (UHF) connector on
the base, and is about 52 inches tall. It will handle up
to 200 watts.

It is trim-tunable between 144-172 MHz., with 4 to 6 MHz
bandwidth under 1.5:1 SWR. Reviews give it a 5 out of 5.

This one is new, unused, still in its original package.
These normally go for over $40. Buy this one still in
the package for $25.
.

.
Hustler VHF/UHF mobile antennas:

Hustler UHT-1

The Hustler UHT-1 is 1/4 Wave Hole Mount Antenna.
It can be cut for any frequency from 136 to 500 MHz.
If you cut it to 19 inches for 2 meters, it will also
work on 440 MHz.

It is low profile, with a 3/4" hole required. It
includes 15' coax and connector, and is rated
to handle up to 200 Watts of power.

This particular antenna is new, still sealed in
its original shrink wrap package. $15
.

Hustler SF-2, 2 meter 5/8 wave 3 db gain antenna
Standard 3/8 - 24 threaded base. $15
.

.
Antenna Specialists Antenna Mounting Hardware:

All of the following hardware is NEW, unused, still in their
original packaging, with original paper work.

K-221 NMO Trunk Lip Mount or hole mount
This takes any of the NMO VHF or UHF type antennas. It is a
nice chrome trunk lip mount, complete with coax. The K-221
is basically a K-66 with a nice chrome plated Trunk Lip Mount.
If you just need an NMO hole mount, you can use this without
the trunk lip mount. NEW $15

HM-66 Gutter Clip Mount
This gutter clip takes a standard 3/8 inch 24 thread antenna.
It includes coax. It is suitable for VHF/UHF antennas, but is
not rugged enough for HF antennas. NEW $15
.

.
Mobile Antenna Springs:

These mobile antenna springs appear to be new. They are the chrome
plated type, and designed for light to medium duty use, i.e. use
on VHF type antennas, and not for heavy duty HF use.

These are about 3 inches long. I have some that are for 1/4 inch
diameter antenna mounts, and some for 3/8 inch.
Please let me know what size you need.

These appear to be new, or at least unused. They are $5 each
.

.
Antennas for your HT:

All rubber ducks are for 2 meters, are in good
condition, and are $10 each, unless stated otherwise.

BNC - As used on most HTs, 7 inches long

BNC - Original Alinco EA0024, about 4 inches long

BNC - Original from Kenwood TH-215, about 5 inches long

BNC - "Stubby" about 4 1/2 inches long

Type F connector - 6.5 inches long

Threaded (as used by Motorola, etc.) - about 7 inches long

BNC Stubby for 440 MHz, 3 inches long

Threaded (as used by Motorola, etc.) stubby for 440 MHz
.

.
I also have many other accessories available such as many
different types of microphones, HTs, VHF and UHF rigs, HF
and VHF/UHF antennas, connectors, miscellaneous accessories,
etc.
Just too many to list here. Please e-mail your requests.

.
Prices do not include shipping from Florida.

Thanks.

73,

Ken, W8EK

Ken Simpson
E-mail to W8EK at FLHam.net or W8EK at arrl.net
Voice Phone (352) 732-8400



.



.

From ars.w5omr at gmail.com  Wed Jun 13 18:06:48 2018
From: ars.w5omr at gmail.com (ARS W5OMR)
Date: Wed, 13 Jun 2018 17:06:48 -0500
Subject: [AMRadio] Reduce relay contact arc
In-Reply-To: <CALWD7Z5PKkFcEkVGMo_CmfJ=0NmYoP41+19eCj46Ey8v+8dGmQ@mail.gmail.com>
References: <67308528.2189138.1528898927487.ref@mail.yahoo.com>
	<67308528.2189138.1528898927487@mail.yahoo.com>
	<CALWD7Z5PKkFcEkVGMo_CmfJ=0NmYoP41+19eCj46Ey8v+8dGmQ@mail.gmail.com>
Message-ID: <CAOhDOk2xyXOAo7Zq93MaU2gGu9DKVuiTqPjcxNbqWKTvb2ZqVQ@mail.gmail.com>

I've got a job ahead of me, replacing the power switch on my Drake L-7.
Same reason. Years of arcing A.C. voltage.

I burned up a set of relay contacts after I converted a Viking II to PTT,
then connected it to a computer to operate the rig via remote (from the
bedroom to the shack, on the local lan). Made about 3 transmissions, and it
quit keying up. Upon forensic investigation, the relay contacts were MIA.

That was DC, and in hindsight, a 1kV capacitor across the relay contacts
would have prevented that loss.

A.C. voltage is a different animal.

-Geoff/W5OMR



On Wed, Jun 13, 2018, 11:13 Rob Atkinson <ranchorobbo at gmail.com> wrote:

> I went through this a few years ago.   The usual solutions are
> snubber, inrush limiter with a resistor, or a thermistor.   The all
> work to some degree but in different ways and circumstances.  A
> thermistor works, but runs hot and won't do anything if the relay is
> closed and opened repeatedly before the thermistor can cool down to
> recycle.   All these methods may or may not prevent arcing on break.
> I wound up using a solid state hocky puck SPST circuit.
>
> 73
>
> Rob
> K5UJ
>
> On Wed, Jun 13, 2018 at 9:08 AM, CL in NC via AMRadio
> <amradio at mailman.qth.net> wrote:
> > If you have a relay that is switching line voltage or higher AC voltage,
> is there any way to reduce the arcing?  You might suggest a snubber, but if
> you use the snubber formula to calculate component sizes, the capacitor
> allows enough AC to pass such that your transformer is making volts.  You
> put it on the primary of say a HV B+ PS, and you will get some amount of B+
> on the secondary, and if you put it in the secondary HV line, you will leak
> AC into the rectifiers and still make B+.  Any solutions other that
> something like a .01 across the contacts and live with it?
> >
> > Charlie, W4MEC in NC
> ______________________________________________________________
> Our Main Website: http://www.amfone.net
> AMRadio mailing list
> Archives: http://mailman.qth.net/pipermail/amradio/
> List Rules (must read!): http://w5ami.net/amradiofaq.html
> List Home: http://mailman.qth.net/mailman/listinfo/amradio
> Post: AMRadio at mailman.qth.net
> To unsubscribe, send an email to amradio-request at mailman.qth.net with
> the word unsubscribe in the message body.
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to ars.w5omr at gmail.com
>

From knjhanlon at msn.com  Wed Jun 13 20:04:23 2018
From: knjhanlon at msn.com (JAMES HANLON)
Date: Thu, 14 Jun 2018 00:04:23 +0000
Subject: [AMRadio] Fw:  Reduce relay contact arc
In-Reply-To: <MWHPR2001MB0925F7F6F59EA25719FE9F24A07E0@MWHPR2001MB0925.namprd20.prod.outlook.com>
References: <67308528.2189138.1528898927487.ref@mail.yahoo.com>,
	<67308528.2189138.1528898927487@mail.yahoo.com>,
	<MWHPR2001MB0925F7F6F59EA25719FE9F24A07E0@MWHPR2001MB0925.namprd20.prod.outlook.com>
Message-ID: <MWHPR2001MB0925DBCD2B5DBF03AC47D9BEA07D0@MWHPR2001MB0925.namprd20.prod.outlook.com>




________________________________
From: JAMES HANLON <knjhanlon at msn.com>
Sent: Wednesday, June 13, 2018 6:00 PM
To: CL in NC; aradio at mailman.qth.net
Subject: Re: [AMRadio] Reduce relay contact arc


Charlie,


As I recall, there are relay contact materials that are better at switching AC arcing loads.  Silver cadmium oxide comes to mind.  Mouser stocks a bunch of relays with AgCdO contacts that are rated to switch many amperes at up to 240 volts AC or more.  Do a search on "Silver Cadmium Oxide (AgCdO) General Purpose Relays | Mouser" and you should find a whole bunch of them.


Once upon a time (1970 to 1989), I used to work in a group at Bell Labs that designed relays built by Western Electric and identified good commercial relays for purchase and use in Bell System equipment.


73,


Jim Hanlon, W8KGI


________________________________
From: CL in NC <mjcal77 at yahoo.com>
Sent: Wednesday, June 13, 2018 8:08 AM
To: amradio at mailman.qth.net
Subject: [AMRadio] Reduce relay contact arc

If you have a relay that is switching line voltage or higher AC voltage, is there any way to reduce the arcing?  You might suggest a snubber, but if you use the snubber formula to calculate component sizes, the capacitor allows enough AC to pass such that your transformer is making volts.  You put it on the primary of say a HV B+ PS, and you will get some amount of B+ on the secondary, and if you put it in the secondary HV line, you will leak AC into the rectifiers and still make B+.  Any solutions other that something like a .01 across the contacts and live with it?

Charlie, W4MEC in NC


From knjhanlon at msn.com  Wed Jun 13 20:06:41 2018
From: knjhanlon at msn.com (JAMES HANLON)
Date: Thu, 14 Jun 2018 00:06:41 +0000
Subject: [AMRadio] Reduce relay contact arc
In-Reply-To: <MWHPR2001MB0925F7F6F59EA25719FE9F24A07E0@MWHPR2001MB0925.namprd20.prod.outlook.com>
References: <67308528.2189138.1528898927487.ref@mail.yahoo.com>,
	<67308528.2189138.1528898927487@mail.yahoo.com>,
	<MWHPR2001MB0925F7F6F59EA25719FE9F24A07E0@MWHPR2001MB0925.namprd20.prod.outlook.com>
Message-ID: <MWHPR2001MB09254624364BA012B949323AA07D0@MWHPR2001MB0925.namprd20.prod.outlook.com>




________________________________
From: JAMES HANLON <knjhanlon at msn.com>
Sent: Wednesday, June 13, 2018 6:00 PM
To: CL in NC; aradio at mailman.qth.net
Subject: Re: [AMRadio] Reduce relay contact arc


Charlie,


As I recall, there are relay contact materials that are better at switching AC arcing loads.  Silver cadmium oxide comes to mind.  Mouser stocks a bunch of relays with AgCdO contacts that are rated to switch many amperes at up to 240 volts AC or more.  Do a search on "Silver Cadmium Oxide (AgCdO) General Purpose Relays | Mouser" and you should find a whole bunch of them.


Once upon a time (1970 to 1989), I used to work in a group at Bell Labs that designed relays built by Western Electric and identified good commercial relays for purchase and use in Bell System equipment.


73,


Jim Hanlon, W8KGI


________________________________
From: CL in NC <mjcal77 at yahoo.com>
Sent: Wednesday, June 13, 2018 8:08 AM
To: amradio at mailman.qth.net
Subject: [AMRadio] Reduce relay contact arc

If you have a relay that is switching line voltage or higher AC voltage, is there any way to reduce the arcing?  You might suggest a snubber, but if you use the snubber formula to calculate component sizes, the capacitor allows enough AC to pass such that your transformer is making volts.  You put it on the primary of say a HV B+ PS, and you will get some amount of B+ on the secondary, and if you put it in the secondary HV line, you will leak AC into the rectifiers and still make B+.  Any solutions other that something like a .01 across the contacts and live with it?

Charlie, W4MEC in NC


From ranchorobbo at gmail.com  Thu Jun 14 12:20:55 2018
From: ranchorobbo at gmail.com (Rob Atkinson)
Date: Thu, 14 Jun 2018 11:20:55 -0500
Subject: [AMRadio] Reduce relay contact arc
In-Reply-To: <MWHPR2001MB09254624364BA012B949323AA07D0@MWHPR2001MB0925.namprd20.prod.outlook.com>
References: <67308528.2189138.1528898927487.ref@mail.yahoo.com>
	<67308528.2189138.1528898927487@mail.yahoo.com>
	<MWHPR2001MB0925F7F6F59EA25719FE9F24A07E0@MWHPR2001MB0925.namprd20.prod.outlook.com>
	<MWHPR2001MB09254624364BA012B949323AA07D0@MWHPR2001MB0925.namprd20.prod.outlook.com>
Message-ID: <CALWD7Z49bvXEOXyLeawKhQfzc0NA4en6eDLVCGcunYG+dz2=jg@mail.gmail.com>

Jim,

Interestingly, my relay experience involved my HT-20, which I think
you wrote about in ER 68?   The 3PDT toggle tx switch on the front
panel had long ago given out, the previous (and first) owner had put
in a relay in the 1950s but it was no longer usable so I tried a
replacement, and the new open frame relay arced on either the high v.
primary or the low v. dc, can't remember which.  The front panel
toggle switch switched the ~340 v. low B+ to the driver stages and 807
screens.   Hallicrafters used one transformer for the filament, low B+
and bias supplies.  They couldn't switch the whole transformer off
between rx and tx so they had to run the low B+ through that toggle
switch.  There were a few other odd things in my opinion like lack of
bleeder resistors on the low B+ power supply filter caps, and the
thing with the high v. power supply filter choke on the CT of the high
B+ secondary.  Well, I'm risking hijacking the thread so I'll stop
now.

73

Rob
K5UJ

>
> As I recall, there are relay contact materials that are better at switching AC arcing loads.  Silver cadmium oxide comes to mind.  Mouser stocks a bunch of relays with AgCdO contacts that are rated to switch many amperes at up to 240 volts AC or more.  Do a search on "Silver Cadmium Oxide (AgCdO) General Purpose Relays | Mouser" and you should find a whole bunch of them.
>
>
> Once upon a time (1970 to 1989), I used to work in a group at Bell Labs that designed relays built by Western Electric and identified good commercial relays for purchase and use in Bell System equipment.
>
>
> 73,
>
>
> Jim Hanlon, W8KGI

>

From ranchorobbo at gmail.com  Thu Jun 14 21:31:02 2018
From: ranchorobbo at gmail.com (Rob Atkinson)
Date: Thu, 14 Jun 2018 20:31:02 -0500
Subject: [AMRadio] BC-1T and BC-1H for sale
Message-ID: <CALWD7Z58MGo8jyVJr7r_ymzNeWCdVzNFuEBdW-Qk2jAcxz6cyA@mail.gmail.com>

>From the Broadcast Desk Reference:

BC-1T and BC-1H for Parts

I have a Gates BC-1T and a BC-1H (were on 1240) taking up a lot of
space in my transmitter hut. I am trying to get the word out that I
have these transmitters available for sale Cheap, mostly for parts and
cabinets, and would like to see them go to somebody still nursing
along one of these boat anchors or to a good ham home, not the junk
yard.  Pick up only.  Lots of spare 833's, and other tubes too.  Also
a bunch of iron, not sure if it belongs to either of these two boxes
but would sell it by the pound!

Location: Cross City, FL

Contact: John Elliott             727-410-1642        john at suncoastradio.com
6/4/18

Rob
K5UJ

From mjcal77 at yahoo.com  Thu Jun 21 15:38:10 2018
From: mjcal77 at yahoo.com (CL in NC)
Date: Thu, 21 Jun 2018 19:38:10 +0000 (UTC)
Subject: [AMRadio] Antique radios
References: <885606107.489326.1529609890857.ref@mail.yahoo.com>
Message-ID: <885606107.489326.1529609890857@mail.yahoo.com>

I know most of you are far away, but if you are an AWA follower or collector of antiques, here is a nice sale, copy and paste the link....

Super Sale - Radios! - Saturday June 23, 2018  Hickory NC

Carol says:

I am selling radio items from my Dad?s collection
He owned WHKY

I have approximately 250 radios left and I?m dropping the prices way down!!!!!
Everything is priced to go:

Cathedrals and Tombstone $25
Floor model Consoles $25
Small radios $10.
Medium radios $20.
Large Table top radios like Radiola $50
Several boxes of tubes $15 each box
Speakers $10.

Brand new pictures here:

https://drive.google.com/open?id=1_iNhFBLcHOtuQfTBukLK4QSm0xQ82IdH

The address is:

120 25th Avenue, NW 
Hickory North Carolina

My phone is 828-234-9668

I will be at the house Saturday June 23, 2018 from 9 AM on
(no visitors please beforehand)

Thank you,

Carol Wolfe


____Also, hope some of you caught the wave on 6 meters Tuesday, 50.4 was crammed with heterodynes from all over.

Charlie, W4MEC in NC

From ne1s at securespeed.us  Sun Jun 24 09:18:44 2018
From: ne1s at securespeed.us (Larry Szendrei)
Date: Sun, 24 Jun 2018 09:18:44 -0400
Subject: [AMRadio] Kenwood TS-440S tuning knob binding
In-Reply-To: <aeb9927c-e872-c840-e8db-4998ef1bee95@securespeed.us>
References: <aeb9927c-e872-c840-e8db-4998ef1bee95@securespeed.us>
Message-ID: <ab9437d6-3a03-7c57-b2b5-b1c2ab58073e@securespeed.us>

Two weeks ago I posted the query (below) on these lists asking for 
suggestions on how to solve a stuck tuning (VFO encoder) shaft on a 
TS-440S. I have solved the issue, so am posting a summary in hopes that 
someone may find it helpful, either now or in the future.

Clif Holland on the Kenwood list (www.avvid.com/) suggested I first 
attempt lubrication between the shaft and bushing. Unfortunately I had 
no luck with this; in my case the shaft was bound up hard and beyond 
this treatment.

I ended up buying a VFO encoder on a popular auction site with 4 letters 
;-) at reasonable cost, which had been removed from a parts radio. The 
VFO encoder is buried pretty deep into the front panel of the rig, and a 
fair amount of disassembly was required to get to it, including removal 
of the 2 control boards (the board which contains the memory battery and 
the one directly below it). I removed the battery before removing the 
boards, as Clif warned me of the opportunity for shorting unknown points 
together when the boards are loose, and there are plenty such 
opportunities! I did not remove the boards completely from the radio, 
and only disconnected enough of all the cables to them to get them out 
of the way sufficiently to replace the VFO encoder, which is beneath the 
2nd board. There is a 3rd board beneath the 2nd one, but that one 
doesn't need to be removed, as it has a cut-out around the VFO encoder. 
The plastic front panel also needs to be removed in order to get a deep 
socket wrench around the nut on the VFO encoder bushing. After the 
boards were safely screwed down again and reconnected to the cables, the 
memory battery was reinstalled. I lubricated the shaft/bushing on the 
"new" encoder with 2 small drops of 3-in-1 oil before replacing the VFO 
knob, which, by the way, requires a 1.5mm Allen wrench for the set 
screw. A few more things - whenever working inside the radio I was 
wearing a wrist strap tied to the front panel metal frame, and I had the 
whole radio on a piece of heavy-duty aluminum foil, to avoid damage from 
ESD. I also used a grounded soldering iron to remove and replace the 
battery. Finally, Clif advised taking multiple photos during the various 
stages of disassembly, and I had to refer to one of them to make sure I 
got a pair cable connectors? back into their proper sockets on the board.

After I got it all back together (surprisingly enough!) the rig worked 
flawlessly. I am grateful to both Clif and my friend Mark KA2QFX for the 
helpful information and encouragement along the way.

73,
-Larry/NE1S

On 6/10/18 9:53 AM, Larry Szendrei wrote:
> I have a Kenwood TS-440S which I bought brand new in the mid 1980s, 
> which I have done my best to keep in pristine physical condition.
>
> This morning I was repeatedly manually scanning up and down the band* 
> with the VFO knob, and it quite rapidly started to turn harder and 
> harder. Now it almost takes a wrench to turn it.
>
> Anyone run into this before, and know how to fix it?
>
> Also, what type of wrench is needed to remove the setscrew for the VFO 
> knob?
>
> * I was playing around giving out a few points in the June VHF 
> contest, using the 440 in conjunction with the Hallicrafters HA-6 and 
> HA-2 transverters.
>
> 73 and TNX,
> -Larry/NE1S
>
>
>


From ne1s at securespeed.us  Sun Jun 24 15:36:41 2018
From: ne1s at securespeed.us (Larry Szendrei)
Date: Sun, 24 Jun 2018 15:36:41 -0400
Subject: [AMRadio] [Glowbugs] Re: Kenwood TS-440S tuning knob binding
In-Reply-To: <BN6PR19MB1171B7CEDD1D131DE1531025904B0@BN6PR19MB1171.namprd19.prod.outlook.com>
References: <aeb9927c-e872-c840-e8db-4998ef1bee95@securespeed.us>
	<ab9437d6-3a03-7c57-b2b5-b1c2ab58073e@securespeed.us>
	<BN6PR19MB1171B7CEDD1D131DE1531025904B0@BN6PR19MB1171.namprd19.prod.outlook.com>
Message-ID: <8be9cd48-2a0d-a2af-3fed-3614ee6e738c@securespeed.us>

On 6/24/18 12:12 PM, Tom Bridgers wrote:
> Larry,
> Coupla questions:
> What caused the binding that couldn?t be addressed by just disassembly and lubing?
>
> For current 440s owners, what should they do to prevent this binding from occurring in the future? IOW is there some preventative maintenance that needs to de done?  Annually ? Periodically?
>
> Was also wondering why you chose to lube with 3-in-1 oil versus other oils, such as Mobil 1 (which I prefer to use on my R-390a gear-trains).
>
>   I?ve read about more expensive lubricants that ?adhere? to gears and shafts better, but still are sold as a viscous, oil. Not sure if those would apply in this situation, and I don?t have any personal experience with them...
>
> I really enjoyed your write up on how you solved the problem.  Many thanks for sharing...
> 73,
> -tom
>

Hi, Tom,

My answers to your questions:

 1. I don't know exactly what caused the binding, but I assume the
    shaft/bushing were dry after all these years, and when I was
    spinning the knob so much looking for QSOs in the recent June VHF
    contest it got warm from friction, and galling bound it up tight.
    (See https://en.wikipedia.org/wiki/Galling for a definition of
    galling.) I don't know if the original encoder can be repaired or
    not, but I didn't need to go there because I was able to find a
    replacement at a reasonable price. I'm saving the old one and maybe
    I'll look into it someday. Repairing it may well be beyond the
    capability of mere mortals.
 2. The reason I chose 3-in-1 oil is simple: it was the only light oil I
    already had on hand. Clif recommends Singer Sewing Machine oil; from
    his experience he thinks it's a better choice. I imagine it would
    help to lube the surfaces periodically, as long as any excess oil
    doesn't end up inside the encoder. How often? I don't know, but
    probably more often than once every 30 years!

Glad you enjoyed my summary. I wanted to answer some of the questions 
which I had before I started and during the replacement, in case others 
found themselves in the same "bind" (pun intended).

73,
-Larry/NE1S

From mjcal77 at yahoo.com  Wed Jun 27 12:15:18 2018
From: mjcal77 at yahoo.com (CL in NC)
Date: Wed, 27 Jun 2018 16:15:18 +0000 (UTC)
Subject: [AMRadio] Benidx Navigator 555
References: <744804233.3405771.1530116118941.ref@mail.yahoo.com>
Message-ID: <744804233.3405771.1530116118941@mail.yahoo.com>

This Bendix 555 RDF  apparently has no documentation on the internet to look at.  Even the manual suppliers don't have this one.  Does anybody know the crystal frequencies that are needed to put this unit on a fixed freq?  Guessing it will be something like Fc minus or plus 455KC, but would appreciate the info if anybody has it.  Thanks.

Charlie, W4MEC in NC

