subject:"\[AMRadio\] transformer"

Re: [AMRadio] transformer rattle - kill or cure?

2009-12-23 Thread Gary

Max:
While its out, it would not hurt a thing to give it several dips.
Regards,
TRS
Gary...WZ1M
- Original Message - 
From: "AirRadio" 
To: "Discussion of AM Radio in the Amateur Service" 

Sent: Wednesday, December 23, 2009 1:54 PM
Subject: Re: [AMRadio] transformer rattle - kill or cure?


> Gary,
> Just gone through a massive lightening storm here a moment ago so 
> everything
> was off for a while, yes the caps are Ok, I have actually swapped out the
> transformer and tried it under a light load, exactly the same, I will be
> 'hot dipping' this evening see how it is tomorrow, fingers crossed 
> here
> goes.
> 73 Max M0GHQ/KJ4ISS
>
>
> - Original Message - 
> From: "Gary" 
> To: "Discussion of AM Radio in the Amateur Service"
> 
> Sent: Wednesday, December 23, 2009 6:48 PM
> Subject: Re: [AMRadio] transformer rattle - kill or cure?
>
>
>> You say, "latest boatanchor", which mite mean that the transformer is
>> becoming saturated to much from an over load condition. This would cause 
>> a
>> rattle. I have read the other posts and the preheat and a COUPLE of dips
>> in
>> varnish would more than likely, cure your problem. Check out those filter
>> caps.
>> Regards,
>> Gary...WZ1M
>> ----- Original Message - 
>> From: "AirRadio" 
>> To: "Discussion of AM Radio in the Amateur Service"
>> 
>> Sent: Wednesday, December 23, 2009 10:39 AM
>> Subject: [AMRadio] transformer rattle - kill or cure?
>>
>>
>>>I have a mains transformer in my latest boatanchor, it is rattling like
>>>mad, eventually goes away after an hour or so, I thought about dropping 
>>>it
>>>in a can of varnish, anyone cured one before, any luck or waste of time?
>>> 73 Max
>>>
>>> -- 
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Re: [AMRadio] transformer rattle - kill or cure?

2009-12-23 Thread AirRadio

Gary,
Just gone through a massive lightening storm here a moment ago so everything 
was off for a while, yes the caps are Ok, I have actually swapped out the 
transformer and tried it under a light load, exactly the same, I will be 
'hot dipping' this evening see how it is tomorrow, fingers crossed here 
goes.
73 Max M0GHQ/KJ4ISS


- Original Message - 
From: "Gary" 
To: "Discussion of AM Radio in the Amateur Service" 

Sent: Wednesday, December 23, 2009 6:48 PM
Subject: Re: [AMRadio] transformer rattle - kill or cure?


> You say, "latest boatanchor", which mite mean that the transformer is
> becoming saturated to much from an over load condition. This would cause a
> rattle. I have read the other posts and the preheat and a COUPLE of dips 
> in
> varnish would more than likely, cure your problem. Check out those filter
> caps.
> Regards,
> Gary...WZ1M
> - Original Message - 
> From: "AirRadio" 
> To: "Discussion of AM Radio in the Amateur Service"
> 
> Sent: Wednesday, December 23, 2009 10:39 AM
> Subject: [AMRadio] transformer rattle - kill or cure?
>
>
>>I have a mains transformer in my latest boatanchor, it is rattling like
>>mad, eventually goes away after an hour or so, I thought about dropping it
>>in a can of varnish, anyone cured one before, any luck or waste of time?
>> 73 Max
>>
>> -- 
>> I am using the free version of SPAMfighter.
>> We are a community of 6 million users fighting spam.
>> SPAMfighter has removed 2223 of my spam emails to date.
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No virus found in this incoming message.
Checked by AVG - www.avg.com
Version: 9.0.722 / Virus Database: 270.14.117/2582 - Release Date: 12/22/09 
18:22:00


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Re: [AMRadio] transformer rattle - kill or cure?

2009-12-23 Thread Gary

You say, "latest boatanchor", which mite mean that the transformer is 
becoming saturated to much from an over load condition. This would cause a 
rattle. I have read the other posts and the preheat and a COUPLE of dips in 
varnish would more than likely, cure your problem. Check out those filter 
caps.
Regards,
Gary...WZ1M
- Original Message - 
From: "AirRadio" 
To: "Discussion of AM Radio in the Amateur Service" 

Sent: Wednesday, December 23, 2009 10:39 AM
Subject: [AMRadio] transformer rattle - kill or cure?


>I have a mains transformer in my latest boatanchor, it is rattling like 
>mad, eventually goes away after an hour or so, I thought about dropping it 
>in a can of varnish, anyone cured one before, any luck or waste of time?
> 73 Max
>
> -- 
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Re: [AMRadio] transformer rattle - kill or cure?

2009-12-23 Thread Mel Farrer

Hi, I used to rebuild motors and transformers and the older ones never seemed 
to keep the laminations tight or bonded.  We used to take older ones and put 
them in an oven for a couple of hours at 150 or so degrees.  Then put them 
submerged in a tank of thinned varnish for about 10 minutes.  Pull them out and 
wipe off the excess varnish and cool overnight.  Heating the core seems to 
invite the thinned varnish to penetrate deeper into the laminations.  This 
always kept the cores quiet.  Its a little messy, but works.  Good Luck.

Mel, 

--- On Wed, 12/23/09, rbethman  wrote:

From: rbethman 
Subject: Re: [AMRadio] transformer rattle - kill or cure?
To: "Discussion of AM Radio in the Amateur Service" 
Date: Wednesday, December 23, 2009, 9:23 AM

Max - Is this your BC-610E?

If it is, I believe they use open frame transformers.  They are also 
difficult to get to.

In that instance, I'd try to look at the "wedges" between the bobbin and 
the laminations.  Try to tighten them a hair.

Bob - N0DGN

>> On Wed, Dec 23, 2009 at 10:39 AM, AirRadio  
>> wrote:
>>     
>>> I have a mains transformer in my latest boatanchor, it is rattling 
>>> like mad, eventually goes away after an hour or so, I thought about 
>>> dropping it in a can of varnish, anyone cured one before, any luck or 
>>> waste of time?
>>>       

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Re: [AMRadio] transformer rattle - kill or cure?

2009-12-23 Thread AirRadio

Bob,
No this is in a Drake R-4c, that is why it is a tad irritating, if it was in 
the '610 it would probably not notice so much, also I have spares for all of 
them. I have removed it and am going to leave it in a pot of varnish 
overnight, better not put it in the oven the Turkey might taste a bit odd on 
the 25th ;-) it will either make no difference or will sort it, all the 
laminations look tight and it is already varnished maybe there is a small 
looseness somewhere however the bobbin looks tight enough. it is 30 years 
old though maybe something has moved over time.
73 Max M0GHQ/KJ4ISS

- Original Message - 
From: "rbethman" 
To: "Discussion of AM Radio in the Amateur Service" 

Sent: Wednesday, December 23, 2009 5:23 PM
Subject: Re: [AMRadio] transformer rattle - kill or cure?

> Max - Is this your BC-610E?
>
> If it is, I believe they use open frame transformers.  They are also
> difficult to get to.
>
> In that instance, I'd try to look at the "wedges" between the bobbin and
> the laminations.  Try to tighten them a hair.
>
> Bob - N0DGN
>
>
>>> On Wed, Dec 23, 2009 at 10:39 AM, AirRadio 
>>> wrote:
>>>
>>>> I have a mains transformer in my latest boatanchor, it is rattling
>>>> like mad, eventually goes away after an hour or so, I thought about
>>>> dropping it in a can of varnish, anyone cured one before, any luck or
>>>> waste of time?
>>>>
>
> __
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No virus found in this incoming message.
Checked by AVG - www.avg.com
Version: 9.0.722 / Virus Database: 270.14.117/2582 - Release Date: 12/22/09 
18:22:00

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Re: [AMRadio] transformer rattle - kill or cure?

2009-12-23 Thread rbethman

Max - Is this your BC-610E?

If it is, I believe they use open frame transformers.  They are also 
difficult to get to.

In that instance, I'd try to look at the "wedges" between the bobbin and 
the laminations.  Try to tighten them a hair.

Bob - N0DGN

>> On Wed, Dec 23, 2009 at 10:39 AM, AirRadio  
>> wrote:
>> 
>>> I have a mains transformer in my latest boatanchor, it is rattling 
>>> like mad, eventually goes away after an hour or so, I thought about 
>>> dropping it in a can of varnish, anyone cured one before, any luck or 
>>> waste of time?
>>>   

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Re: [AMRadio] transformer rattle - kill or cure?

2009-12-23 Thread Stevan A. White

Forgot to mention, if you do set the transformer on rubber feet be sure 
to electrically ground the frame to the chassis to maintain the 
integrity of the safety ground just in case of a winding fault.

Stevan A. White wrote:
> As a broadcast engineer I have seen (or heard) transformers rattle as 
> you've described.  My suggestion would be to let it be, especially if it 
> stops after a while.  It sounds to me like it rattles when it's cold and 
> stops after it warms up.  Does the noise gradually subside or just quit 
> abruptly?  It is annoying to listen to the laminations rattle but it 
> would be even more annoying to try to "fix" one problem and create 
> another.  Some transformer windings are spaced apart and spacers may 
> loosen some when they're cool and "tighten up" after they warm up.  I 
> used to have one that did that and it really bothered me until I talked 
> to the factory guy and he explained what was happening.  Even worse than 
> transformer laminations rattling is hearing a bank of SCRs grunting and 
> groaning.  (I'll bet some on this list even know which line of 
> transmitters I'm talking about.)  Happy Holidays to all!
>
> Steve White, W5SAW
>   
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Re: [AMRadio] transformer rattle - kill or cure?

2009-12-23 Thread Jim Wilhite

You might remove one of the end bells and try inserting something 
between the bobbin and the laminations at the end.  Maybe that is a mite 
loose.

Jim/W5JO




> On Wed, Dec 23, 2009 at 10:39 AM, AirRadio  
> wrote:
>> I have a mains transformer in my latest boatanchor, it is rattling 
>> like mad, eventually goes away after an hour or so, I thought about 
>> dropping it in a can of varnish, anyone cured one before, any luck or 
>> waste of time?
>
> Sounds like it abates once things settle in thermally.The simple
> approach I'd try first Max is to check the tension on any securing
> bolts through the transformer laminations or chassis. Sometimes that
> takes care of it. Other methods include removing the transformer and
> re-sealing the laminations it in hot varnish, or isolating the
> transformer from the chassis on rubber bushings. The latter is not a
> good idea IMO due to safety concerns with internal shorts which would
> otherwise become apparent when the case is grounded to the chassis.
>
> Gary WZ1M is a member of this list and has a transformer rebuilding
> business, so he can certainly provide you with some pointers. I think
> Don K4KYV and a few others have successfully dealt with similar
> problems with success. It might be as simple as tossing he transformer
> in the oven for a while on its own if tightening the bolts doesn't
> cure it.
>
> ~ Todd,  KA1KAQ/4

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

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Re: [AMRadio] transformer rattle - kill or cure?

2009-12-23 Thread Stevan A. White

As a broadcast engineer I have seen (or heard) transformers rattle as 
you've described.  My suggestion would be to let it be, especially if it 
stops after a while.  It sounds to me like it rattles when it's cold and 
stops after it warms up.  Does the noise gradually subside or just quit 
abruptly?  It is annoying to listen to the laminations rattle but it 
would be even more annoying to try to "fix" one problem and create 
another.  Some transformer windings are spaced apart and spacers may 
loosen some when they're cool and "tighten up" after they warm up.  I 
used to have one that did that and it really bothered me until I talked 
to the factory guy and he explained what was happening.  Even worse than 
transformer laminations rattling is hearing a bank of SCRs grunting and 
groaning.  (I'll bet some on this list even know which line of 
transmitters I'm talking about.)  Happy Holidays to all!

Steve White, W5SAW

Todd, KA1KAQ wrote:
> On Wed, Dec 23, 2009 at 10:39 AM, AirRadio  wrote:
>   
>> I have a mains transformer in my latest boatanchor, it is rattling like mad, 
>> eventually goes away after an hour or so, I thought about dropping it in a 
>> can of varnish, anyone cured one before, any luck or waste of time?
>> 
>
> Sounds like it abates once things settle in thermally.The simple
> approach I'd try first Max is to check the tension on any securing
> bolts through the transformer laminations or chassis. Sometimes that
> takes care of it. Other methods include removing the transformer and
> re-sealing the laminations it in hot varnish, or isolating the
> transformer from the chassis on rubber bushings. The latter is not a
> good idea IMO due to safety concerns with internal shorts which would
> otherwise become apparent when the case is grounded to the chassis.
>
> Gary WZ1M is a member of this list and has a transformer rebuilding
> business, so he can certainly provide you with some pointers. I think
> Don K4KYV and a few others have successfully dealt with similar
> problems with success. It might be as simple as tossing he transformer
> in the oven for a while on its own if tightening the bolts doesn't
> cure it.
>
> ~ Todd,  KA1KAQ/4
> __
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>
>   
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Re: [AMRadio] transformer rattle - kill or cure?

2009-12-23 Thread Todd, KA1KAQ

On Wed, Dec 23, 2009 at 10:39 AM, AirRadio  wrote:
> I have a mains transformer in my latest boatanchor, it is rattling like mad, 
> eventually goes away after an hour or so, I thought about dropping it in a 
> can of varnish, anyone cured one before, any luck or waste of time?

Sounds like it abates once things settle in thermally.The simple
approach I'd try first Max is to check the tension on any securing
bolts through the transformer laminations or chassis. Sometimes that
takes care of it. Other methods include removing the transformer and
re-sealing the laminations it in hot varnish, or isolating the
transformer from the chassis on rubber bushings. The latter is not a
good idea IMO due to safety concerns with internal shorts which would
otherwise become apparent when the case is grounded to the chassis.

Gary WZ1M is a member of this list and has a transformer rebuilding
business, so he can certainly provide you with some pointers. I think
Don K4KYV and a few others have successfully dealt with similar
problems with success. It might be as simple as tossing he transformer
in the oven for a while on its own if tightening the bolts doesn't
cure it.

~ Todd,  KA1KAQ/4
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[AMRadio] transformer rattle - kill or cure?

2009-12-23 Thread AirRadio

I have a mains transformer in my latest boatanchor, it is rattling like mad, 
eventually goes away after an hour or so, I thought about dropping it in a can 
of varnish, anyone cured one before, any luck or waste of time? 
73 Max

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[AMRadio] Transformer

2009-09-21 Thread RICHARD GEORGE

Looking for an interstage audio transformer.  PP plates to PPgrids with a 5 to 
1 ratio min. A thordarson 20D79 would be ideal.
Please reply off list.
Thanks for looking.
73
K6KWQ Dick
 Amps by "MORE POWER"
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Re: [AMRadio] Transformer/Choke

2008-05-19 Thread D. Chester



Does anyone have a reference for a UTC PA-109 choke?  All I've found so 
far

is UTC Varimatch Transformer manuals.  I'm just wondering what the
inductance and current rating is.



Rick/K5IAR


5-25 henry swinging choke.  5 hy @ 500MA, 25 hy@ 50MA.

This is the same thing as the CG-109, except that the case style is 
different.


The PA series is the original.  PA stands for "Public Address".  In about 
1949, they changed the PA series to CG, which stands for "Commercial Grade".


For a large selection of transformer catalogues and specifications in PDF 
format, go to:


http://www.bunkerofdoom.com/xfm/index.html


Don k4kyv 


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Re: [AMRadio] Transformer/Choke

2008-05-17 Thread doxemf


Rick,

It should be the same as a CG-109,

Swinging choke
5-25 H, 500ma, 52 Ohms DCR, 7KV

Bill,
KB3DKS


-Original Message-

Subject: [AMRadio] Transformer/Choke

Does anyone have a reference for a UTC PA-109 choke?  All I've found so 
far

is UTC Varimatch Transformer manuals.  I'm just wondering what the
inductance and current rating is.

Thanks,

Rick/K5IAR

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[AMRadio] Transformer/Choke

2008-05-16 Thread Rick Brashear

Does anyone have a reference for a UTC PA-109 choke?  All I've found so far
is UTC Varimatch Transformer manuals.  I'm just wondering what the
inductance and current rating is.

 

Thanks,

Rick/K5IAR

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[AMRadio] Transformer info needed

2008-01-08 Thread jeremy-ca

Ive had these on a back shelf for years awaiting a resurgence in my AM 
interest.


Thordarson 6424, 8140
UTC CIC-2 (same as C-2?)

These may be Thordarson but the only # is stamped in the bell:  1221E, 3053, 
3211, 3552


Any ID help appreciated.

Carl
KM1H


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Re: [AMRadio] Transformer Rewind

2007-12-16 Thread Geoff/W5OMR


jeremy-ca wrote:
The input coil is common to all bands in the 75A1, the secondary is 
then fed to the band switch.


Check the antenna coil primary first and then the secondary for 
continuity. Rewinding shouldnt be that hard if the form hasnt been 
destroyed. The hardest part will be removing it from the assembly.


A couple of decades ago, I accidently dumped a few hundred watts of RF 
directly into the front-end of an SX-73, on 75m.  The input coil took 
the brunt of the damage.


John Mohn/W5MEU(sk) told me to come out there and get some 24ga copper 
wire to re-wind that coil.  Very carefully, I removed the phoenelic 
board from the turret in which the coil was installed, then ever 
so-much-more carefully, removed the coil from the board.  There was a 
spot on the coil that -wasn't- burnt, so I was able to count turns, and 
re-wind the coil.  Luckily, I was working at Southwest Research 
Institute at the time, and was able to utilize a small-wattage iron, 
some organic stripper and a magnifying glass to re-solder the connections.



--
Driving your AM Rig without a scope, 
is like driving your car at night, without headlights. (K4KYV)


--
73 = Best Regards,
-Geoff/W5OMR

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Re: [AMRadio] Transformer Rewind

2007-12-16 Thread jeremy-ca

The input coil is common to all bands in the 75A1, the secondary is then fed 
to the band switch.


Check the antenna coil primary first and then the secondary for continuity. 
Rewinding shouldnt be that hard if the form hasnt been destroyed. The 
hardest part will be removing it from the assembly.


Carl
KM1H



- Original Message - 
From: "Peter Wittenberg" <[EMAIL PROTECTED]>
To: "'Discussion of AM Radio in the Amateur Service'" 


Sent: Sunday, December 16, 2007 12:02 PM
Subject: RE: [AMRadio] Transformer Rewind


Phil, you may want to rewind the coil. Take a look at what you may have 
done

before you jump to the answer.

Best 73's Peter K2LRC
www.k2lrc.com


-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Phil LaMarche
Sent: Sunday, December 16, 2007 11:52 AM
To: 'Discussion of AM Radio in the Amateur Service'
Subject: RE: [AMRadio] Transformer Rewind


Dave,

Wanted to mention with the 75A-1, I turned it back on and tried all bands,
hearing only 2 signals on 40 and 40 meters.  I don't know how many coils
there are that could be affected by the 75 meter AM zap.  I really think I
should pay something for these, please. Or, I'll send you a box of my
gourmet spice.

Phil


Philip LaMarche
LaMarche Enterprises, Inc.
www.instantgourmetspices.com
www.w9dvm.com
800-395-7795 pin 02
727-944-3226
FAX 727-937-8834
NASFT 30210
W9DVM



-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of David Knepper
Sent: Sunday, December 16, 2007 11:24 AM
To: Discussion of AM Radio in the Amateur Service
Subject: Re: [AMRadio] Transformer Rewind

Thanks, Rick.

Dave, W3ST - W3CRA
Collins Radio Association
www.collinsra.com
Join the largest Collins group in the world Nets on 7208 at 4:30 EDST 
every

day and Monday at 3805 at 8 PM EDST

- Original Message -
From: "Rick Brashear" <[EMAIL PROTECTED]>
To: "'Discussion of AM Radio in the Amateur Service'"

Sent: Sunday, December 16, 2007 11:15 AM
Subject: RE: [AMRadio] Transformer Rewind



Dave.. As always I personally recommend Gary, WZ1M.  He has done several
for
me and the work is excellent, quick turn around and the price is right. 
I

highly recommend him. He is located at: [EMAIL PROTECTED]

Rick/K5IAR


Need two transformers rewound:

Power transformer from an HT-32A

Collins 516F-2

Thank you
Dave, W3ST - W3CRA
Collins Radio Association

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Re: [AMRadio] Transformer Lead Dress Dave

2007-12-16 Thread Mike Sawyer

They do make a shrink tubing with a type of sealant inside. We used to use 
these when I worked at Babcock & Wilcox. They are somewhat stiff but I think 
it maintain insulation at 2KV potential.
Mod-U-Lator,
Mike(y)
W3SLK



   That works for minor cracks and breaks in the insulation but these
leads are so brittle that replacement
is called for especially with the plate transformer at close to 2kv
RMS. Heat shrink is also not very flexable but I might use it for the
LV transformer and choke.

   I'm going to be turning this VK II chassis into an externally
modulated RF deck.

 

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RE: [AMRadio] Transformer Rewind

2007-12-16 Thread Phil LaMarche


Thank you Peter.  I am told many wonderful things about you from my friend
Cliff, W4NJ, who has admired your services and work.

Howard just restored and painted my Collins speaker and it looks like new.

Phil 


Philip LaMarche 
LaMarche Enterprises, Inc.
www.instantgourmetspices.com 
www.w9dvm.com 
800-395-7795 pin 02 
727-944-3226 
FAX 727-937-8834 
NASFT 30210 
W9DVM 
  


-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Peter Wittenberg
Sent: Sunday, December 16, 2007 12:02 PM
To: 'Discussion of AM Radio in the Amateur Service'
Subject: RE: [AMRadio] Transformer Rewind

Phil, you may want to rewind the coil. Take a look at what you may have done
before you jump to the answer. 

Best 73's Peter K2LRC
www.k2lrc.com


-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Phil LaMarche
Sent: Sunday, December 16, 2007 11:52 AM
To: 'Discussion of AM Radio in the Amateur Service'
Subject: RE: [AMRadio] Transformer Rewind


Dave,

Wanted to mention with the 75A-1, I turned it back on and tried all bands,
hearing only 2 signals on 40 and 40 meters.  I don't know how many coils
there are that could be affected by the 75 meter AM zap.  I really think I
should pay something for these, please. Or, I'll send you a box of my
gourmet spice.

Phil


Philip LaMarche
LaMarche Enterprises, Inc.
www.instantgourmetspices.com
www.w9dvm.com
800-395-7795 pin 02
727-944-3226
FAX 727-937-8834
NASFT 30210
W9DVM



-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of David Knepper
Sent: Sunday, December 16, 2007 11:24 AM
To: Discussion of AM Radio in the Amateur Service
Subject: Re: [AMRadio] Transformer Rewind

Thanks, Rick.

Dave, W3ST - W3CRA
Collins Radio Association
www.collinsra.com
Join the largest Collins group in the world Nets on 7208 at 4:30 EDST every
day and Monday at 3805 at 8 PM EDST

- Original Message -
From: "Rick Brashear" <[EMAIL PROTECTED]>
To: "'Discussion of AM Radio in the Amateur Service'"

Sent: Sunday, December 16, 2007 11:15 AM
Subject: RE: [AMRadio] Transformer Rewind


> Dave.. As always I personally recommend Gary, WZ1M.  He has done 
> several for me and the work is excellent, quick turn around and the 
> price is right.  I highly recommend him. He is located at: 
> [EMAIL PROTECTED]
>
> Rick/K5IAR
>
>
> Need two transformers rewound:
>
> Power transformer from an HT-32A
>
> Collins 516F-2
>
> Thank you
> Dave, W3ST - W3CRA
> Collins Radio Association
>
> __
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Re: [AMRadio] Transformer Rewind

2007-12-16 Thread Geoff/W5OMR


Jim Wilhite wrote:
Dave, contact Gary/WZ1M at [EMAIL PROTECTED] 
He has done work for me and does a good job.


Jim/W5JO 


Gary's gonna be a busy beaver, since the announcement that Peter Dahl in 
El Paso has closed it's doors and is taking no more orders... and their 
shelves are empty of transformers.



--
Driving your AM Rig without a scope, 
is like driving your car at night, without headlights. (K4KYV)


--
73 = Best Regards,
-Geoff/W5OMR

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Re: [AMRadio] Transformer Rewind

2007-12-16 Thread David Knepper


Thanks, Gary for that correction.

Dave, W3ST - W3CRA
Collins Radio Association
www.collinsra.com
Join the largest Collins group in the world
Nets on 7208 at 4:30 EDST every day and
Monday at 3805 at 8 PM EDST

- Original Message - 
From: "Gary" <[EMAIL PROTECTED]>
To: "Discussion of AM Radio in the Amateur Service" 


Sent: Sunday, December 16, 2007 12:27 PM
Subject: Re: [AMRadio] Transformer Rewind



There is a reason my email bounced. Its XFRMRS, not XFRMS.
My email is [EMAIL PROTECTED]
Regards,
Gary...WZ1M
- Original Message - 
From: "David Knepper" <[EMAIL PROTECTED]>

To: "Discussion of AM Radio in the Amateur Service"

Sent: Sunday, December 16, 2007 9:58 AM
Subject: Re: [AMRadio] Transformer Rewind


Jim, his email bounced.


Dave, W3ST - W3CRA
Collins Radio Association
www.collinsra.com
Join the largest Collins group in the world
Nets on 7208 at 4:30 EDST every day and
Monday at 3805 at 8 PM EDST

- Original Message - 
From: "Jim Wilhite" <[EMAIL PROTECTED]>

To: "Discussion of AM Radio in the Amateur Service"

Sent: Sunday, December 16, 2007 9:54 AM
Subject: Re: [AMRadio] Transformer Rewind



Dave, contact Gary/WZ1M at [EMAIL PROTECTED]
He has done work for me and does a good job.

Jim/W5JO






Need two transformers rewound:

Power transformer from an HT-32A

Collins 516F-2

Thank you
Dave, W3ST - W3CRA
Collins Radio Association


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Re: [AMRadio] Transformer Rewind

2007-12-16 Thread Gary

There is a reason my email bounced. Its XFRMRS, not XFRMS.
My email is [EMAIL PROTECTED]
Regards,
Gary...WZ1M
- Original Message - 
From: "David Knepper" <[EMAIL PROTECTED]>
To: "Discussion of AM Radio in the Amateur Service" 

Sent: Sunday, December 16, 2007 9:58 AM
Subject: Re: [AMRadio] Transformer Rewind

Jim, his email bounced.

Dave, W3ST - W3CRA
Collins Radio Association
www.collinsra.com
Join the largest Collins group in the world
Nets on 7208 at 4:30 EDST every day and
Monday at 3805 at 8 PM EDST

- Original Message - 
From: "Jim Wilhite" <[EMAIL PROTECTED]>
To: "Discussion of AM Radio in the Amateur Service"

Sent: Sunday, December 16, 2007 9:54 AM
Subject: Re: [AMRadio] Transformer Rewind

> Dave, contact Gary/WZ1M at [EMAIL PROTECTED]
> He has done work for me and does a good job.
>
> Jim/W5JO
>
>
>
>
>
>> Need two transformers rewound:
>>
>> Power transformer from an HT-32A
>>
>> Collins 516F-2
>>
>> Thank you
>> Dave, W3ST - W3CRA
>> Collins Radio Association
>
> __
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Re: [AMRadio] Transformer Lead Dress Dave

2007-12-16 Thread doxemf


Re-sent
From: "David Knepper"


Try shrink tubing.


  That works for minor cracks and breaks in the insulation but these 
leads are so brittle that replacement
is called for especially with the plate transformer at close to 2kv 
RMS. Heat shrink is also not very flexable but I might use it for the 
LV transformer and choke.


  I'm going to be turning this VK II chassis into an externally 
modulated RF deck.


 Thanks,
Wm.
KB3DKS/1



More new features than ever.  Check out the new AOL Mail ! - 
http://webmail.aol.com

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RE: [AMRadio] Transformer Rewind

2007-12-16 Thread Peter Wittenberg

Phil, you may want to rewind the coil. Take a look at what you may have done
before you jump to the answer. 

Best 73's Peter K2LRC
www.k2lrc.com


-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Phil LaMarche
Sent: Sunday, December 16, 2007 11:52 AM
To: 'Discussion of AM Radio in the Amateur Service'
Subject: RE: [AMRadio] Transformer Rewind


Dave,

Wanted to mention with the 75A-1, I turned it back on and tried all bands,
hearing only 2 signals on 40 and 40 meters.  I don't know how many coils
there are that could be affected by the 75 meter AM zap.  I really think I
should pay something for these, please. Or, I'll send you a box of my
gourmet spice.

Phil


Philip LaMarche
LaMarche Enterprises, Inc.
www.instantgourmetspices.com
www.w9dvm.com
800-395-7795 pin 02
727-944-3226
FAX 727-937-8834
NASFT 30210
W9DVM



-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of David Knepper
Sent: Sunday, December 16, 2007 11:24 AM
To: Discussion of AM Radio in the Amateur Service
Subject: Re: [AMRadio] Transformer Rewind

Thanks, Rick.

Dave, W3ST - W3CRA
Collins Radio Association
www.collinsra.com
Join the largest Collins group in the world Nets on 7208 at 4:30 EDST every
day and Monday at 3805 at 8 PM EDST

- Original Message -
From: "Rick Brashear" <[EMAIL PROTECTED]>
To: "'Discussion of AM Radio in the Amateur Service'"

Sent: Sunday, December 16, 2007 11:15 AM
Subject: RE: [AMRadio] Transformer Rewind


> Dave.. As always I personally recommend Gary, WZ1M.  He has done several
> for
> me and the work is excellent, quick turn around and the price is right.  I
> highly recommend him. He is located at: [EMAIL PROTECTED]
>
> Rick/K5IAR
>
>
> Need two transformers rewound:
>
> Power transformer from an HT-32A
>
> Collins 516F-2
>
> Thank you
> Dave, W3ST - W3CRA
> Collins Radio Association
>
> __
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RE: [AMRadio] Transformer Rewind

2007-12-16 Thread Phil LaMarche


Dave,

Wanted to mention with the 75A-1, I turned it back on and tried all bands,
hearing only 2 signals on 40 and 40 meters.  I don't know how many coils
there are that could be affected by the 75 meter AM zap.  I really think I
should pay something for these, please. Or, I'll send you a box of my
gourmet spice.

Phil 


Philip LaMarche 
LaMarche Enterprises, Inc.
www.instantgourmetspices.com 
www.w9dvm.com 
800-395-7795 pin 02 
727-944-3226 
FAX 727-937-8834 
NASFT 30210 
W9DVM 
  


-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of David Knepper
Sent: Sunday, December 16, 2007 11:24 AM
To: Discussion of AM Radio in the Amateur Service
Subject: Re: [AMRadio] Transformer Rewind

Thanks, Rick.

Dave, W3ST - W3CRA
Collins Radio Association
www.collinsra.com
Join the largest Collins group in the world Nets on 7208 at 4:30 EDST every
day and Monday at 3805 at 8 PM EDST

- Original Message -
From: "Rick Brashear" <[EMAIL PROTECTED]>
To: "'Discussion of AM Radio in the Amateur Service'" 

Sent: Sunday, December 16, 2007 11:15 AM
Subject: RE: [AMRadio] Transformer Rewind


> Dave.. As always I personally recommend Gary, WZ1M.  He has done several 
> for
> me and the work is excellent, quick turn around and the price is right.  I
> highly recommend him. He is located at: [EMAIL PROTECTED]
>
> Rick/K5IAR
>
>
> Need two transformers rewound:
>
> Power transformer from an HT-32A
>
> Collins 516F-2
>
> Thank you
> Dave, W3ST - W3CRA
> Collins Radio Association
>
> __
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Re: [AMRadio] Transformer Rewind

2007-12-16 Thread David Knepper


Thanks, Rick.

Dave, W3ST - W3CRA
Collins Radio Association
www.collinsra.com
Join the largest Collins group in the world
Nets on 7208 at 4:30 EDST every day and
Monday at 3805 at 8 PM EDST

- Original Message - 
From: "Rick Brashear" <[EMAIL PROTECTED]>
To: "'Discussion of AM Radio in the Amateur Service'" 


Sent: Sunday, December 16, 2007 11:15 AM
Subject: RE: [AMRadio] Transformer Rewind


Dave.. As always I personally recommend Gary, WZ1M.  He has done several 
for

me and the work is excellent, quick turn around and the price is right.  I
highly recommend him. He is located at: [EMAIL PROTECTED]

Rick/K5IAR


Need two transformers rewound:

Power transformer from an HT-32A

Collins 516F-2

Thank you
Dave, W3ST - W3CRA
Collins Radio Association

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RE: [AMRadio] Transformer Rewind

2007-12-16 Thread Rick Brashear

Dave.. As always I personally recommend Gary, WZ1M.  He has done several for
me and the work is excellent, quick turn around and the price is right.  I
highly recommend him. He is located at: [EMAIL PROTECTED]

Rick/K5IAR


Need two transformers rewound:

Power transformer from an HT-32A

Collins 516F-2

Thank you
Dave, W3ST - W3CRA
Collins Radio Association

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Re: [AMRadio] Transformer Rewind

2007-12-16 Thread Jim Wilhite


Geez Dave,  try his home page and email from there to see what happens.

http://tubes_tubes_tubes.tripod.com/tubestubestubes/index.html

I had that trouble a while back but maybe this will cure it.  He may 
have an full mail box.  He does read the list and may replay himself.


Jim/W5JO






Jim, his email bounced.


Dave, W3ST - W3CRA
Collins Radio Association


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Re: [AMRadio] Transformer Rewind

2007-12-16 Thread David Knepper


Jim, his email bounced.


Dave, W3ST - W3CRA
Collins Radio Association
www.collinsra.com
Join the largest Collins group in the world
Nets on 7208 at 4:30 EDST every day and
Monday at 3805 at 8 PM EDST

- Original Message - 
From: "Jim Wilhite" <[EMAIL PROTECTED]>
To: "Discussion of AM Radio in the Amateur Service" 


Sent: Sunday, December 16, 2007 9:54 AM
Subject: Re: [AMRadio] Transformer Rewind



Dave, contact Gary/WZ1M at [EMAIL PROTECTED]
He has done work for me and does a good job.

Jim/W5JO






Need two transformers rewound:

Power transformer from an HT-32A

Collins 516F-2

Thank you
Dave, W3ST - W3CRA
Collins Radio Association


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Re: [AMRadio] Transformer Rewind

2007-12-16 Thread David Knepper


Thanks, Jim

Dave, W3ST - W3CRA
Collins Radio Association
www.collinsra.com
Join the largest Collins group in the world
Nets on 7208 at 4:30 EDST every day and
Monday at 3805 at 8 PM EDST

- Original Message - 
From: "Jim Wilhite" <[EMAIL PROTECTED]>
To: "Discussion of AM Radio in the Amateur Service" 


Sent: Sunday, December 16, 2007 9:54 AM
Subject: Re: [AMRadio] Transformer Rewind



Dave, contact Gary/WZ1M at [EMAIL PROTECTED]
He has done work for me and does a good job.

Jim/W5JO






Need two transformers rewound:

Power transformer from an HT-32A

Collins 516F-2

Thank you
Dave, W3ST - W3CRA
Collins Radio Association


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Re: [AMRadio] Transformer Rewind

2007-12-16 Thread Jim Wilhite

Dave, contact Gary/WZ1M at [EMAIL PROTECTED]  


He has done work for me and does a good job.

Jim/W5JO






Need two transformers rewound:

Power transformer from an HT-32A

Collins 516F-2

Thank you
Dave, W3ST - W3CRA
Collins Radio Association


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[AMRadio] Transformer Rewind

2007-12-16 Thread David Knepper


Need two transformers rewound:

Power transformer from an HT-32A

Collins 516F-2

Thank you
Dave, W3ST - W3CRA
Collins Radio Association
www.collinsra.com
Join the largest Collins group in the world
Nets on 7208 at 4:30 EDST every day and
Monday at 3805 at 8 PM EDST 


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Re: [AMRadio] Transformer Lead Dress

2007-12-16 Thread David Knepper


Resent

Dave, W3ST - W3CRA
Collins Radio Association
www.collinsra.com
Join the largest Collins group in the world
Nets on 7208 at 4:30 EDST every day and
Monday at 3805 at 8 PM EDST

- Original Message - 
From: "David Knepper" <[EMAIL PROTECTED]>
To: "Discussion of AM Radio in the Amateur Service" 


Sent: Tuesday, December 11, 2007 7:04 AM
Subject: Re: [AMRadio] Transformer Lead Dress



Try shrink tubing.

Dave, W3ST - W3CRA
Collins Radio Association
www.collinsra.com
Join the largest Collins group in the world
Nets on 7208 at 4:30 EDST every day and
Monday at 3805 at 8 PM EDST

- Original Message - 
From: <[EMAIL PROTECTED]>

To: 
Sent: Tuesday, December 11, 2007 1:00 AM
Subject: [AMRadio] Transformer Lead Dress



Hello,
I just stripped out a basket case VK II transmitter for rebuilding.
Most of the transformer leads are brittle and even carefully removing 
them thru the chassis hole, I can feel the rubber inner jacket breaking 
up.

I would expect to replace the wires near as I can get to the windings.
The plate transformer will need good HT wire.

I have quite a bit of different sizes of silver teflon.
for most of the windings but not quite sure what to do about the HT 
wires.


This is a project transmitter, not a restoration.

 Suggestons? Sources of suitable wire in an affordable put up. I have 
other large transformers with the same problem as well.


Thanks,
Bill, KB3DKS/1
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Re: [AMRadio] Transformer Lead Dress

2007-12-11 Thread Brett Gazdzinski

I found some silicone high voltage wire in an old
pager transmitter someone gave me.
It ran a 4-400 at 3000 volts, FM at about 70 mhz.
The silicone wire was about as thick as regular 18 gauge
stranded hookup wire, was white, and good for 10kv!

On some old iron, I cut the old wires off inside the shell,
and used heat shrink over the splice, and it works great,
and is a perminent nice looking fix.

Brett
N2DTS

- Original Message - 
From: <[EMAIL PROTECTED]>
To: 
Sent: Tuesday, December 11, 2007 1:00 AM
Subject: [AMRadio] Transformer Lead Dress


> Hello,
>  I just stripped out a basket case VK II transmitter for rebuilding.
>  Most of the transformer leads are brittle and even carefully removing
them thru the chassis hole, I can feel the rubber inner jacket breaking up.
>  I would expect to replace the wires near as I can get to the windings.
>  The plate transformer will need good HT wire.
>
> I have quite a bit of different sizes of silver teflon.
> for most of the windings but not quite sure what to do about the HT wires.
>
>  This is a project transmitter, not a restoration.
>
>   Suggestons? Sources of suitable wire in an affordable put up. I have
other large transformers with the same problem as well.
>
>  Thanks,
> Bill, KB3DKS/1
> __
> Our Main Website: http://www.amfone.net
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RE: [AMRadio] Transformer Lead Dress

2007-12-11 Thread Jim Candela

Bill, KB3DKS/1 wrote:

Message: 4
Date: Tue, 11 Dec 2007 01:00:48 -0500
From: [EMAIL PROTECTED]
Subject: [AMRadio] Transformer Lead Dress
To: amradio@mailman.qth.net
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=iso-8859-1

Hello,
 I just stripped out a basket case VK II transmitter for rebuilding.
 Most of the transformer leads are brittle and even carefully removing
 them thru the chassis hole, I can feel the rubber inner jacket breaking
 up.
 I would expect to replace the wires near as I can get to the windings.

 The plate transformer will need good HT wire.

I have quite a bit of different sizes of silver teflon.
for most of the windings but not quite sure what to do about the HT
 wires.

 This is a project transmitter, not a restoration.

  Suggestons? Sources of suitable wire in an affordable put up. I have
 other large transformers with the same problem as well.

 Thanks,
Bill, KB3DKS/1

Reply by Jim, WD5JKO:

Bill, I went through this a few years ago on a Sherwood tube type stereo 
amplifier. See link below for some pictures.

http://pages.prodigy.net/jcandela/Sherwood_S8000/Transformer/

I spliced new wires onto the tinned leads, and used heatshrink for the 
insulation over the joint. Then I folded the wires back and taped them over the 
winding area. What started out looking like a total loss ended up good. I 
skipped dipping in transformer varnish along with a vacuum chamber to suck out 
the air so that the varnish would fill all the internal pores that have been 
created since the old potting material had disintegrated. So far after nearly 4 
years, my trusty Sherwood S800 is working fine.

Jim
JKO

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Re: [AMRadio] Transformer Lead Dress

2007-12-11 Thread jeremy-ca

Since you are not dealing with any real HV any 600V rated wire will be fine 
as the actual breakdown is around 2-3 times that. They werent that fussy 
back then.


USA made VOM test leads are a good source of HV wire up to 5KV or so 
depending on their original use. Ive used them in many 2-3KV supplies over 
the years. Old ones can also get brittle so be carefull what you get.


Teflon is good for HV BUT it is very easily nicked and damaged.

Carl
KM1H



- Original Message - 
From: "David Knepper" <[EMAIL PROTECTED]>
To: "Discussion of AM Radio in the Amateur Service" 


Sent: Tuesday, December 11, 2007 7:04 AM
Subject: Re: [AMRadio] Transformer Lead Dress



Try shrink tubing.

Dave, W3ST - W3CRA
Collins Radio Association
www.collinsra.com
Join the largest Collins group in the world
Nets on 7208 at 4:30 EDST every day and
Monday at 3805 at 8 PM EDST

- Original Message - 
From: <[EMAIL PROTECTED]>

To: 
Sent: Tuesday, December 11, 2007 1:00 AM
Subject: [AMRadio] Transformer Lead Dress



Hello,
I just stripped out a basket case VK II transmitter for rebuilding.
Most of the transformer leads are brittle and even carefully removing 
them thru the chassis hole, I can feel the rubber inner jacket breaking 
up.

I would expect to replace the wires near as I can get to the windings.
The plate transformer will need good HT wire.

I have quite a bit of different sizes of silver teflon.
for most of the windings but not quite sure what to do about the HT 
wires.


This is a project transmitter, not a restoration.

 Suggestons? Sources of suitable wire in an affordable put up. I have 
other large transformers with the same problem as well.


Thanks,
Bill, KB3DKS/1
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Re: [AMRadio] Transformer Lead Dress

2007-12-11 Thread David Knepper


Try shrink tubing.

Dave, W3ST - W3CRA
Collins Radio Association
www.collinsra.com
Join the largest Collins group in the world
Nets on 7208 at 4:30 EDST every day and
Monday at 3805 at 8 PM EDST

- Original Message - 
From: <[EMAIL PROTECTED]>

To: 
Sent: Tuesday, December 11, 2007 1:00 AM
Subject: [AMRadio] Transformer Lead Dress



Hello,
I just stripped out a basket case VK II transmitter for rebuilding.
Most of the transformer leads are brittle and even carefully removing them 
thru the chassis hole, I can feel the rubber inner jacket breaking up.

I would expect to replace the wires near as I can get to the windings.
The plate transformer will need good HT wire.

I have quite a bit of different sizes of silver teflon.
for most of the windings but not quite sure what to do about the HT wires.

This is a project transmitter, not a restoration.

 Suggestons? Sources of suitable wire in an affordable put up. I have 
other large transformers with the same problem as well.


Thanks,
Bill, KB3DKS/1
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[AMRadio] Transformer Lead Dress

2007-12-10 Thread DOXEMF

Hello,
 I just stripped out a basket case VK II transmitter for rebuilding.
 Most of the transformer leads are brittle and even carefully removing them 
thru the chassis hole, I can feel the rubber inner jacket breaking up.
 I would expect to replace the wires near as I can get to the windings. 
 The plate transformer will need good HT wire.
 
I have quite a bit of different sizes of silver teflon.
for most of the windings but not quite sure what to do about the HT wires.

 This is a project transmitter, not a restoration.

  Suggestons? Sources of suitable wire in an affordable put up. I have other 
large transformers with the same problem as well.

 Thanks,
Bill, KB3DKS/1
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[AMRadio] Transformer theory

2007-10-01 Thread Bob Bruhns

Passing this along, from the Amrad mail group.

http://www.midcom-inc.com/Tech/pdf/TN69.pdf

  Bacon, WA3WDR
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[AMRadio] Transformer Request

2007-08-08 Thread David Knepper

Looking for a steel drawn case (as used in the DX-100, etc.) that measures 2 
inches by 3 inches between the two outer mounting holes.  I want to mount 
another transformer inside the case.  Therefore, the transformer is not 
important to me, just the case.  Prefer three holes in each of the two 
flanges or would accept a potted transformer that has threaded studs.


The original transformer was used in the Collins KWS-1 as the high voltage 
rectifier filament transformer.  When I purchased the unit, the transformer 
was missing, unfortunately.  I assume that the transformer was discarded 
after it failed.


Any assistance would be appreciated

Thank you


David Knepper, W3ST/W3CRA
Secretary to the Collins Radio Association
www.collinsra.com
Publisher of the Collins Journal
Join the CRA - the world's largest Collins group 


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Re: [AMRadio] Transformer baking Recovery

2006-12-24 Thread John King

Thanks Joe. 73, John, K5PGW
--- crawfish <[EMAIL PROTECTED]> wrote:

> John, I received a Word document from W4AEE about
> this very subject. I am
> having problems with Word on this computer, so I
> can't forward, but you
> might want to check with him.He is on this reflector
> from time to time.
> 
>  Joe W4AAB
> - Original Message -
> From: "John King" <[EMAIL PROTECTED]>
> To: "Discussion of AM Radio in the Amateur Service"
> 
> Sent: Monday, December 18, 2006 11:32 PM
> Subject: Re: [AMRadio] Transformer baking Recovery
> 
> 
> > Did John, WA5BXO, bake the transformers? I have a
> nice
> > BC 610 E that has been in the State of Kentucky
> until
> > a couple of years ago ( not Gulf Coast humidity)
> and
> > in my enclosed garqage in South Louisiana  for
> about
> > two years. I plan to fire it up soon and an
> wondering
> > if I should apply heat with heat lamps or electric
> > heaters and for how long? Any ideas? Thanks, and
> 73,
> > John, K5PGW
> >
> >
> > --- Geoff/W5OMR <[EMAIL PROTECTED]> wrote:
> >
> > > Rbethman wrote:
> > > > Folks,
> > > >
> > > > Most of us have power, mod, audio, and "other"
> > > transformers that have
> > > > been "due to storage requirements", exposed to
> > > humidity.
> > > >
> > > >
> > >
> > > John/WA5BXO had a modulation transformer, and
> > > reactor soaked in Spring
> > > Creek for 3 months, or thereabouts.  The year
> was
> > > 1998, when they lost
> > > everything in the worst flooding of North
> Houston
> > > ever recorded.
> > >
> > > Those pieces of iron are still on the air,
> today.
> > >
> > > --
> > > 73
> > >
> > >
> > >
> >
>
__
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> >
> >
> > __
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> 
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Re: [AMRadio] Transformer baking Recovery

2006-12-24 Thread crawfish

John, I received a Word document from W4AEE about this very subject. I am
having problems with Word on this computer, so I can't forward, but you
might want to check with him.He is on this reflector from time to time.
  Joe W4AAB
- Original Message -
From: "John King" <[EMAIL PROTECTED]>
To: "Discussion of AM Radio in the Amateur Service"

Sent: Monday, December 18, 2006 11:32 PM
Subject: Re: [AMRadio] Transformer baking Recovery


> Did John, WA5BXO, bake the transformers? I have a nice
> BC 610 E that has been in the State of Kentucky until
> a couple of years ago ( not Gulf Coast humidity) and
> in my enclosed garqage in South Louisiana  for about
> two years. I plan to fire it up soon and an wondering
> if I should apply heat with heat lamps or electric
> heaters and for how long? Any ideas? Thanks, and 73,
> John, K5PGW
>
>
> --- Geoff/W5OMR <[EMAIL PROTECTED]> wrote:
>
> > Rbethman wrote:
> > > Folks,
> > >
> > > Most of us have power, mod, audio, and "other"
> > transformers that have
> > > been "due to storage requirements", exposed to
> > humidity.
> > >
> > >
> >
> > John/WA5BXO had a modulation transformer, and
> > reactor soaked in Spring
> > Creek for 3 months, or thereabouts.  The year was
> > 1998, when they lost
> > everything in the worst flooding of North Houston
> > ever recorded.
> >
> > Those pieces of iron are still on the air, today.
> >
> > --
> > 73
> >
> >
> >
> __
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> > List Home:
> > http://mailman.qth.net/mailman/listinfo/amradio
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> > Post: mailto:AMRadio@mailman.qth.net
> >
>
>
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Re: [AMRadio] Transformer baking Recovery

2006-12-18 Thread Geoff/W5OMR





John King wrote:


Did John, WA5BXO, bake the transformers? I have a nice
BC 610 E that has been in the State of Kentucky until
a couple of years ago ( not Gulf Coast humidity) and
in my enclosed garqage in South Louisiana  for about
two years. I plan to fire it up soon and an wondering
if I should apply heat with heat lamps or electric
heaters and for how long? Any ideas? Thanks, and 73,
John, K5PGW



I don't know if he baked 'em, or ust let 'em sit outside on the driveway 
for a couple of days, in the typical South Texas Sun.



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Re: [AMRadio] Transformer baking Recovery

2006-12-18 Thread John King

Did John, WA5BXO, bake the transformers? I have a nice
BC 610 E that has been in the State of Kentucky until
a couple of years ago ( not Gulf Coast humidity) and
in my enclosed garqage in South Louisiana  for about
two years. I plan to fire it up soon and an wondering
if I should apply heat with heat lamps or electric
heaters and for how long? Any ideas? Thanks, and 73,
John, K5PGW

--- Geoff/W5OMR <[EMAIL PROTECTED]> wrote:

> Rbethman wrote:
> > Folks,
> >
> > Most of us have power, mod, audio, and "other"
> transformers that have
> > been "due to storage requirements", exposed to
> humidity.
> >
> >
> 
> John/WA5BXO had a modulation transformer, and
> reactor soaked in Spring 
> Creek for 3 months, or thereabouts.  The year was
> 1998, when they lost 
> everything in the worst flooding of North Houston
> ever recorded.
> 
> Those pieces of iron are still on the air, today.
> 
> --
> 73
> 
> 
>
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Re: [AMRadio] Transformer baking Recovery

2006-12-18 Thread Geoff/W5OMR


Rbethman wrote:

Folks,

Most of us have power, mod, audio, and "other" transformers that have
been "due to storage requirements", exposed to humidity.




John/WA5BXO had a modulation transformer, and reactor soaked in Spring 
Creek for 3 months, or thereabouts.  The year was 1998, when they lost 
everything in the worst flooding of North Houston ever recorded.


Those pieces of iron are still on the air, today.

--
73


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Re: [AMRadio] Transformer baking Recovery

2006-12-18 Thread James M. Walker


How the HELL are you? Also Greasy Seasonings there old soldier!
I feel your info will fall on deaf ears at this time of year. I am trying
to be civilized here in Buffalo, but without radios to play with "It
Just ain't working", so right now I am doing the Bachelor thing at
work, not bad really. Got all the test equipment I regularly use at
home and then some, sleeping on the sofa in Boss's office and
building stuff and repairing radios and having a ball.

Samoan weather is brutal, wind blows across the beaches if
you are lucky, and it rains when no one wants it to!

SO lets see want to drive to Virginia beach and pick something
up and hold it for me? I know I still have an Apache there but
I still LOVE you. My pickup truck is dead DEAD and I am going to
drop it at Monroe Muffler and brake to let them repair it, if they can.

I have been working on the 500KC group stuff got the transmitter,
got the receiver coming from Cleveland, everything is set up for
portable operation from the University, if it is heard then I will have
to change the address/location info on the 500KC license.

How the heck are you and I still have AIM and you are listed in there
turn the thing on.
Sgt Boo
AKA Jim WB2FCN


- Original Message - 
From: "Rbethman" <[EMAIL PROTECTED]>

To: "amradio" 
Sent: Monday, December 18, 2006 5:18 PM
Subject: [AMRadio] Transformer baking Recovery



Folks,

Most of us have power, mod, audio, and "other" transformers that have
been "due to storage requirements", exposed to humidity.

The 90 Deg C temp converts to 194 Deg F.

This would seem to be a starting point for a multiple hour bake session.

My Electric stove/oven has a 200 Deg F setting.

I plan to make some baking runs on xfmrs for periods between 2 to 4 hours.

This SHOULD take care of "simple" humidity issues.

Dealing with REAL MOISTURE issues is someplace I've been.  The year was
1975.  My team and I were installing a replacement 1500KW, 4160VAC, 230A
60 Hz synchronous generator.

We were located on the Island of American Samoa.  The military transport
folks, for reason never determined, had left this in an unprotected wood
shipping crate.  This crate sat OUTSIDE for about weeks in the summer
tropical environment AND rains.

We acquired about 12 floodlights, sockets, wiring, and plugs.  We
removed the end bells and confirmed a "Depot Rebuilt" assembly that was
indeed SOAKED.

We baked it with the end bells OFF for two weeks in a water-proof
shelter.  Testing was performed with first a Megger, then followed by a
"Hi-Pot".  We determined that our effort was successful.

Several days later, we installed it, aligned it with the prime mover,
and then, crossing our fingers, started the generator, flashed its
field, and achieved full output voltage.  We did a careful step loading
until we reached full power of 1500KW 4160 3 Phase VAC at a power factor
of 0.8.

It was run for 72 hours in that condition.  It performed flawlessly.

To MY knowledge, this piece of equipment operated for at LEAST four
years without failure.

Baking works!  WE just shouldn't have to go to THOSE extremes to safely
recover OUR transformers.  Unless we have managed to let them get WET.

Bob - N0DGN

--
   Bob - NØDGN
+--+
|  \\"""//CraftyBob - WitchDoctor \\"""//  |
|   (@ @)   Bob Bethman - NØDGN(@ @)   |
+---oOOo-(_)-oOOo--oOOo-(_)-oOOo---+
| NØDGN AMRadio Manassas, VA|REAL Tube Radio and AM|
+---+--+
|   Manassas Radio - Home of Homemade Kielbasa & Pirogi|
+---+--+
| Bob Bethman\\\|/// " The absence of a danger |
| rbethman(at)comcast.net   \\ ~ ~ //  signal does *NOT* mean  |
|   (/ @ @ /)  that everything is OK " |
+-oOOo-(_)-oOOo+
|   <http://home.comcast.net/~rbethman>|
| 1 BC-61ØI w/BC-614I,1 T-213/GRC-26 w/BC614I,1 '51 Collins R-39ØA |
|  SP-6ØØ/NR Type 159, Heath DX-6Ø, Apache, Mohawk, SX-1Ø1, HT-32A |
+---.oooO---Oooo.---.oooO---Oooo.--+
|   () ()Opinions expressed are that() ()  |
|\  (   )  /of my own and do not \  (   )  /   |
| \_ ) ( _/represent those of ANYONE else \_ ) ( _/|
+--+
| Amateur As

[AMRadio] Transformer baking Recovery

2006-12-18 Thread Rbethman


Folks,

Most of us have power, mod, audio, and "other" transformers that have
been "due to storage requirements", exposed to humidity.

The 90 Deg C temp converts to 194 Deg F.

This would seem to be a starting point for a multiple hour bake session.

My Electric stove/oven has a 200 Deg F setting.

I plan to make some baking runs on xfmrs for periods between 2 to 4 hours.

This SHOULD take care of "simple" humidity issues.

Dealing with REAL MOISTURE issues is someplace I've been.  The year was
1975.  My team and I were installing a replacement 1500KW, 4160VAC, 230A
60 Hz synchronous generator.

We were located on the Island of American Samoa.  The military transport
folks, for reason never determined, had left this in an unprotected wood
shipping crate.  This crate sat OUTSIDE for about weeks in the summer
tropical environment AND rains.

We acquired about 12 floodlights, sockets, wiring, and plugs.  We
removed the end bells and confirmed a "Depot Rebuilt" assembly that was
indeed SOAKED.

We baked it with the end bells OFF for two weeks in a water-proof
shelter.  Testing was performed with first a Megger, then followed by a
"Hi-Pot".  We determined that our effort was successful.

Several days later, we installed it, aligned it with the prime mover,
and then, crossing our fingers, started the generator, flashed its
field, and achieved full output voltage.  We did a careful step loading
until we reached full power of 1500KW 4160 3 Phase VAC at a power factor
of 0.8.

It was run for 72 hours in that condition.  It performed flawlessly.

To MY knowledge, this piece of equipment operated for at LEAST four
years without failure.

Baking works!  WE just shouldn't have to go to THOSE extremes to safely
recover OUR transformers.  Unless we have managed to let them get WET.

Bob - N0DGN

--
   Bob - NØDGN
+--+
|  \\"""//CraftyBob - WitchDoctor \\"""//  |
|   (@ @)   Bob Bethman - NØDGN(@ @)   |
+---oOOo-(_)-oOOo--oOOo-(_)-oOOo---+
| NØDGN AMRadio Manassas, VA|REAL Tube Radio and AM|
+---+--+
|   Manassas Radio - Home of Homemade Kielbasa & Pirogi|
+---+--+
| Bob Bethman\\\|/// " The absence of a danger |
| rbethman(at)comcast.net   \\ ~ ~ //  signal does *NOT* mean  |
|   (/ @ @ /)  that everything is OK " |
+-oOOo-(_)-oOOo+
|   |
| 1 BC-61ØI w/BC-614I,1 T-213/GRC-26 w/BC614I,1 '51 Collins R-39ØA |
|  SP-6ØØ/NR Type 159, Heath DX-6Ø, Apache, Mohawk, SX-1Ø1, HT-32A |
+---.oooO---Oooo.---.oooO---Oooo.--+
|   () ()Opinions expressed are that() ()  |
|\  (   )  /of my own and do not \  (   )  /   |
| \_ ) ( _/represent those of ANYONE else \_ ) ( _/|
+--+
| Amateur Astronomer - Celestron Nexstar 8 & Meade ETX-6Ø  |
|   38 Deg 46'48.62"' N - 77 Deg 28'26.89" W   |
+--.oooO---Oooo.---+
|  () ()   |
|   \  (   )  /|
|\_ ) ( _/ |
|ALL E-mail received and sent scanned by AVG   |
+--+





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[AMRadio] Transformer Case Outline Pinouts

2006-12-06 Thread David Hollander

Hello - I am trying to find a pin connection diagram for the UTC special 
series S-17 transformer. I have looked at the on-line catalogs and they 
do not have the pinouts, only the specs. The one document on BAMA does 
not have the "Special Series" transformers.


Thanks,

Dave N7RK
--
***
Dave  N7RK  Boatanchors Home Page: http://members.cox.net/n7rk
Phoenix, Arizona *DXCC Honor Roll**WAZ#22 - 75 Meter SSB*

ex-XE2/N7RK, N7RK/ZB2, VK2ERK, ZM0AJN, WB6NRK, WN6IWX

Boatanchor and Antique Radio Collector


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[AMRadio] transformer

2006-12-02 Thread Rick Brashear

A while back I bought an audio output transformer from someone on this 
or one of the lists I am on.  Well, at the time they told me how to hook 
it up for my R-390/URR.  Of course, I forgot and can't find where I 
wrote it down.  So, whomever sold me this great Hammond 39921 
transformer, please contact me.  [EMAIL PROTECTED]


Thanks,
Rick/K5IZ

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Re: [AMRadio] Transformer Rewinding

2006-06-08 Thread gkb

Bob:
That mite of been me, WZ1M, up here in Maine.
Regards,
Gary...WZ1M
- Original Message - 
From: "Bob Maser" <[EMAIL PROTECTED]>
To: "AMRadio" 
Sent: Tuesday, June 06, 2006 11:06 AM
Subject: [AMRadio] Transformer Rewinding


> Some time back in 2005 I found a guy that rewound the power transformer
for
> my HRO60.  He did a great job and his price was reasonable.  I have
another
> transformer that needs to be rewound and I can't locate his name.  Can
> anyone help me find this guy?  I think he was somewhere in the East.
Maybe
> in 3 land, not sure.
>
> Bob  W6TR.
>
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>
>
>
> -- 
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> Checked by AVG Free Edition.
> Version: 7.1.394 / Virus Database: 268.8.3/359 - Release Date: 6/8/2006
>
>

Re: [AMRadio] Transformer Rewinding

2006-06-07 Thread Brian Carling

There is a full list of Transformer Rewinder Guys that 
you can consult at:

http://www.af4k.com/Boatanchors_Directory/Repairs.htm
AND at:
http://www.af4k.com/mega/repairs.htm

I hope it's helpful!

> Some time back in 2005 I found a guy that rewound the power transformer for 
> my HRO60.  He did a great job and his price was reasonable.  I have another 
> transformer that needs to be rewound and I can't locate his name.  Can 
> anyone help me find this guy?  I think he was somewhere in the East.  Maybe 
> in 3 land, not sure.
> 
> Bob  W6TR. 
> 
> __
> AMRadio mailing list
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>

Re: [AMRadio] Transformer Rewinding

2006-06-06 Thread Warren

Try Gary Brown in 
Maine  [EMAIL PROTECTED]

Re: [AMRadio] Transformer Rewinding

2006-06-06 Thread Todd, KA1KAQ


On 6/6/06, Bob Maser <[EMAIL PROTECTED]> wrote:

Some time back in 2005 I found a guy that rewound the power transformer for
my HRO60.  He did a great job and his price was reasonable.


Bob, was it Gary Brown WZ1M in Maine?

http://tubes_tubes_tubes.tripod.com/tubestubestubes/

~ Todd,  KA1KAQ

[AMRadio] Transformer Rewinding

2006-06-06 Thread Bob Maser

Some time back in 2005 I found a guy that rewound the power transformer for 
my HRO60.  He did a great job and his price was reasonable.  I have another 
transformer that needs to be rewound and I can't locate his name.  Can 
anyone help me find this guy?  I think he was somewhere in the East.  Maybe 
in 3 land, not sure.


Bob  W6TR.

Re: Re: [AMRadio] Transformer catalogs

2005-12-14 Thread Edward B Richards

Thanks, again, Larry

73, Ed Richards, K6UUZ
Simi Valley, California, 93065
Home of Air Force 1 Pavilion


On Wed, 14 Dec 2005 16:50:23 + <[EMAIL PROTECTED]> writes:
> Plate V is 3100 and the choke is in the high side.


> > 
> > From: Edward B Richards <[EMAIL PROTECTED]>
> > Date: 2005/12/14 Wed PM 04:02:15 WET
> > To: amradio@mailman.qth.net
> > Subject: Re: Re: [AMRadio] Transformer catalogs
> > 
> > Thanks, Larry. That helps. I don't understand why the choke says 
> VOLTAGE:
> > 110-120 VOLTS. It is a high voltage choke isn't it? Thanks and 
> Merry
> > Christmas.
> > 
> > 73, Ed Richards, K6UUZ
> > Simi Valley, California, 93065
> > Home of Air Force 1 Pavilion
> > 
> > On Wed, 14 Dec 2005 14:35:12 + <[EMAIL PROTECTED]> writes:
> > > Looks like 3. Electro Engineering Works 123, 4567 is a 866 
> filament 
> > > xfmr and 678-0625-00 is a 10 Hy choke @ 1 amp, both from a 
> Collins 
> > > 20V3 1 Kw AM xmtr.
> > > 
> > > 73, Larry  K2LT
> > __
> > AMRadio mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/amradio
> > Help: http://mailman.qth.net/mmfaq.html
> > Post: mailto:AMRadio@mailman.qth.net
> > AMfone Website: http://www.amfone.net
> > AM List Admin: Brian Sherrod/w5ami, Paul Courson/wa3vjb
> > 
> 
> Larry Taft  K2LT
> T and T Measurements
> drakerepair.com
> 800-687-9161
> __
> AMRadio mailing list
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> AM List Admin: Brian Sherrod/w5ami, Paul Courson/wa3vjb
> 
>

Re: Re: [AMRadio] Transformer catalogs

2005-12-14 Thread ltaft

Plate V is 3100 and the choke is in the high side.

Larry

> 
> From: Edward B Richards <[EMAIL PROTECTED]>
> Date: 2005/12/14 Wed PM 04:02:15 WET
> To: amradio@mailman.qth.net
> Subject: Re: Re: [AMRadio] Transformer catalogs
> 
> Thanks, Larry. That helps. I don't understand why the choke says VOLTAGE:
> 110-120 VOLTS. It is a high voltage choke isn't it? Thanks and Merry
> Christmas.
> 
> 73, Ed Richards, K6UUZ
> Simi Valley, California, 93065
> Home of Air Force 1 Pavilion
> 
> On Wed, 14 Dec 2005 14:35:12 + <[EMAIL PROTECTED]> writes:
> > Looks like 3. Electro Engineering Works 123, 4567 is a 866 filament 
> > xfmr and 678-0625-00 is a 10 Hy choke @ 1 amp, both from a Collins 
> > 20V3 1 Kw AM xmtr.
> > 
> > 73, Larry  K2LT
> __
> AMRadio mailing list
> Home: http://mailman.qth.net/mailman/listinfo/amradio
> Help: http://mailman.qth.net/mmfaq.html
> Post: mailto:AMRadio@mailman.qth.net
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> AM List Admin: Brian Sherrod/w5ami, Paul Courson/wa3vjb
> 

Larry Taft  K2LT
T and T Measurements
drakerepair.com
800-687-9161

Re: Re: [AMRadio] Transformer catalogs

2005-12-14 Thread Edward B Richards

Thanks, Larry. That helps. I don't understand why the choke says VOLTAGE:
110-120 VOLTS. It is a high voltage choke isn't it? Thanks and Merry
Christmas.

73, Ed Richards, K6UUZ
Simi Valley, California, 93065
Home of Air Force 1 Pavilion

On Wed, 14 Dec 2005 14:35:12 + <[EMAIL PROTECTED]> writes:
> Looks like 3. Electro Engineering Works 123, 4567 is a 866 filament 
> xfmr and 678-0625-00 is a 10 Hy choke @ 1 amp, both from a Collins 
> 20V3 1 Kw AM xmtr.
> 
> 73, Larry  K2LT

Re: [AMRadio] Transformer catalogs

2005-12-14 Thread Edward B Richards

Thanks, Pete. That was it. Merry Christmas.

On Wed, 14 Dec 2005 02:17:09 -0500 peter markavage <[EMAIL PROTECTED]>
writes:
> Here's a source:
> http://www.bunkerofdoom.com/xfm/index.html
> 
> Pete, wa2cwa

Re: Re: [AMRadio] Transformer catalogs

2005-12-14 Thread ltaft

Looks like 3. Electro Engineering Works 123, 4567 is a 866 filament xfmr and 
678-0625-00 is a 10 Hy choke @ 1 amp, both from a Collins 20V3 1 Kw AM xmtr.

73, Larry  K2LT

>
> > 3. Electro Engineering Works. No numbers other than numbering the
> > terminals; 123 on one row, 4567 on other row. 
> > 4. Above came with a matching choke by the same company no. 
> > 678-0625-00
> > rev F.
> > 
> > I need something that will produce 3 kv @ 500 ma DC.
> > 
> > Thank you and Merry Christmas.
> > 
> > 73, Ed Richards, K6UUZ
> > Simi Valley, California, 93065
> > Home of Air Force 1 Pavilion
> __
> AMRadio mailing list
> Home: http://mailman.qth.net/mailman/listinfo/amradio
> Help: http://mailman.qth.net/mmfaq.html
> Post: mailto:AMRadio@mailman.qth.net
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> AM List Admin: Brian Sherrod/w5ami, Paul Courson/wa3vjb
>

Re: [AMRadio] Transformer catalogs

2005-12-14 Thread peter markavage

Here's a source:
http://www.bunkerofdoom.com/xfm/index.html

Pete, wa2cwa

On Tue, 13 Dec 2005 17:39:46 -0800 Edward B Richards <[EMAIL PROTECTED]>
writes:
> Hi all;
> 
> I remember seeing where someone had posted transformer 
> specifications
> somewhere on the web. I was not interested at the time so I did not 
> save
> it (mistake). I now need to identify 3 transformers and a choke. All 
> are
> about the size of a car battery and weigh about the same. Can 
> someone
> point me in the right direction? they are;
> 
> 1. Super Electronic Products Corporation type 466-T-1
> 2. Thordarson Electric Mfg, co. CAT transformer T-15P10 or T-15P19, 
> 900
> watts.
> 3. Electro Engineering Works. No numbers other than numbering the
> terminals; 123 on one row, 4567 on other row. 
> 4. Above came with a matching choke by the same company no. 
> 678-0625-00
> rev F.
> 
> I need something that will produce 3 kv @ 500 ma DC.
> 
> Thank you and Merry Christmas.
> 
> 73, Ed Richards, K6UUZ
> Simi Valley, California, 93065
> Home of Air Force 1 Pavilion

[AMRadio] Transformer catalogs

2005-12-13 Thread Edward B Richards

Hi all;

I remember seeing where someone had posted transformer specifications
somewhere on the web. I was not interested at the time so I did not save
it (mistake). I now need to identify 3 transformers and a choke. All are
about the size of a car battery and weigh about the same. Can someone
point me in the right direction? they are;

1. Super Electronic Products Corporation type 466-T-1
2. Thordarson Electric Mfg, co. CAT transformer T-15P10 or T-15P19, 900
watts.
3. Electro Engineering Works. No numbers other than numbering the
terminals; 123 on one row, 4567 on other row. 
4. Above came with a matching choke by the same company no. 678-0625-00
rev F.

I need something that will produce 3 kv @ 500 ma DC.

Thank you and Merry Christmas.

73, Ed Richards, K6UUZ
Simi Valley, California, 93065
Home of Air Force 1 Pavilion

[AMRadio] transformer

2004-12-22 Thread CHRIS PAPAIOANNOU

73 all,
looking for a 350-0-350 @ 300-350mA transformer.Not interested if 6.3V & 5.00V 
there are or not.
Merry Christmas and the happiest 2005 to all ya & ur families!
Chris SV1DAF.
From [EMAIL PROTECTED]  Wed Dec 22 22:29:44 2004
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From: "Mark Bell" <[EMAIL PROTECTED]>
To: "Discussion of AM Radio" 
References: <[EMAIL PROTECTED]>
Subject: Re: [AMRadio] AM Window on 15 Meters?
Date: Wed, 22 Dec 2004 22:18:32 -0500
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Awk!!  There is no "AM Window" on 15 meters.  You can use the entire phone
band.  Typically though, AM activity is around 21.420.

As to why it isn't used much, I suspect it's because 10M has been good.  As
we head further into the sunspot doldrums, you'll probably see more activity
on 15M.

A lot of us that are 10M addicts monitor 29.0 whilst putzing in the shack.
It would probably be a good idea to set a second receiver on 21.420!   I'm
not sure what the AM calling frequency is for 15 though, it might not be
21.420.  Check the band plan.

73 Mark K3MSB


.
- Original Message -
From: "Mike Duke, K5XU" <[EMAIL PROTECTED]>
To: "Discussion of AM Radio" 
Sent: Wednesday, December 22, 2004 5:48 PM
Subject: [AMRadio] AM Window on 15 Meters?


> As 10 meters began its decline a few years ago, I would often ask AM
> operators if they ever used 15 meters. With very few exceptions, the
answer
> would usually go something like: "No, because I never hear anyone else
down
> there."
>
> There was AM activity for a brief time around 21.400, and on 21.430. But,
in
> casual tuning on the weekends, I have heard less than 5 AM stations on 15
> meters within the past year.
>
> I say all that to ask just where is the "AM window" on 15 meters?
>
> And, why don't more of us operate there?
>
> Unless there's a contest, 15 meters is usually not crowded. Those of us
who
> run rice boxes or similar power can usually hold our own there once a
> contact is established.
>
>
> Mike Duke, K5XU
> American Council of Blind Radio Amateurs
>
>
>
> __
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> Home: http://mailman.qth.net/mailman/listinfo/amradio
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> Post: mailto:AMRadio@mailman.qth.net
>

Re: [AMRadio] Transformer needed

2003-12-23 Thread w5sum

hi Terry
new or used is good

120-150 ma of current. I can't believe that I left that part out LOL

Merry Christmas

Ronnie

On Tue, 23 Dec 2003 17:05:20 EST, Tbs50A wrote
> Hey Ronnie,
>Are you lookin' fer new or used and how much 
> plate current? Terry N3GTE
> 
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> AMRadio@mailman.qth.net
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The "AM" voice of Shreveport, Louisiana USA
formerly WN5AIA and WB5AIA
I got my Extra Class the old fashioned way... I earned it!

Re: [AMRadio] Transformer needed

2003-12-23 Thread Tbs50A

Hey Ronnie,
   Are you lookin' fer new or used and how much plate current?
Terry N3GTE


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Re: [AMRadio] Transformer needed

2003-12-23 Thread Geoff Edmonson

I spewed my drink all over the monitor when on Tuesday 23 December 2003 13:33, 
w5sum said (and I am -not- making this up!)::

how about 800vCT at 1Amp?

> oh.. what kind of current does it have for the plate voltage? I need about
> 120 mills

(realize, the "spewing" comment at the top is just a feature of the new mail 
program ;->)

-- 
  2:11pm  up 3 days  1:49,  7 users,  load average: 0.10, 0.13, 0.09

Re: [AMRadio] Transformer needed

2003-12-23 Thread w5sum

oh.. what kind of current does it have for the plate voltage? I need about 
120 mills

R

On Tue, 23 Dec 2003 12:53:56 -0600, Geoff Edmonson wrote
> I spewed my drink all over the monitor when on Tuesday 23 December 
> 2003 12:48, w5sum said (and I am -not- making this up!)::
> 
> > I'm in need of a combined plate/filament tranny
> >
> > 750 or 800 vct
> > 6.3V ct and 5v filament windings
> >
> > anyone have one of these beasts they will part with?
> >
> > thanks and Merry Christmas
> 
> I've got one, Ronnie.   I need a road trip.  where do ya wanna meet?
> 
> -- 
>  12:53pm  up 3 days  0:31,  8 users,  load average: 0.31, 0.22, 0.13
> 
> ___
> AMRadio mailing list
> AMRadio@mailman.qth.net
> http://mailman.qth.net/mailman/listinfo/amradio



The "AM" voice of Shreveport, Louisiana USA
formerly WN5AIA and WB5AIA
I got my Extra Class the old fashioned way... I earned it!

Re: [AMRadio] Transformer needed

2003-12-23 Thread ronnie.hull

LOL well damn man, I hate that I made you shower your monitor but at least it 
wasn't your keyboard

it aint worth the drive dude.. let me send you some cash for shipping and how 
much do you want for it?

Hope you and yours have a very Merry Christmas. Going to be quiet at my QTH 
with no chillens around

73's 

R



-- Original Message ---
From: Geoff Edmonson <[EMAIL PROTECTED]>
To: amradio@mailman.qth.net
Sent: Tue, 23 Dec 2003 12:53:56 -0600
Subject: Re: [AMRadio] Transformer needed

> I spewed my drink all over the monitor when on Tuesday 23 December 
> 2003 12:48, w5sum said (and I am -not- making this up!)::
> 
> > I'm in need of a combined plate/filament tranny
> >
> > 750 or 800 vct
> > 6.3V ct and 5v filament windings
> >
> > anyone have one of these beasts they will part with?
> >
> > thanks and Merry Christmas
> 
> I've got one, Ronnie.   I need a road trip.  where do ya wanna meet?
> 
> -- 
>  12:53pm  up 3 days  0:31,  8 users,  load average: 0.31, 0.22, 0.13
> 
> ___
> AMRadio mailing list
> AMRadio@mailman.qth.net
> http://mailman.qth.net/mailman/listinfo/amradio
--- End of Original Message ---

Re: [AMRadio] Transformer needed

2003-12-23 Thread Geoff Edmonson

I spewed my drink all over the monitor when on Tuesday 23 December 2003 12:48, 
w5sum said (and I am -not- making this up!)::

> I'm in need of a combined plate/filament tranny
>
> 750 or 800 vct
> 6.3V ct and 5v filament windings
>
> anyone have one of these beasts they will part with?
>
> thanks and Merry Christmas

I've got one, Ronnie.   I need a road trip.  where do ya wanna meet?

-- 
 12:53pm  up 3 days  0:31,  8 users,  load average: 0.31, 0.22, 0.13

[AMRadio] Transformer needed

2003-12-23 Thread w5sum

I'm in need of a combined plate/filament tranny

750 or 800 vct
6.3V ct and 5v filament windings

anyone have one of these beasts they will part with?

thanks and Merry Christmas

Ronnie

The "AM" voice of Shreveport, Louisiana USA
formerly WN5AIA and WB5AIA
I got my Extra Class the old fashioned way... I earned it!

[AMRadio] Transformer Needed

2003-03-27 Thread bobm

Looking for a Stancor A-4723.  This is a 10K to PP grids. Ratio 3:1, primary
to 1/2 secondary.

Last item needed for the 813 X 813 rig.

Thanks for looking

73,
Bob, W4WSZ
SAMRC #12

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