|[AMRadio] Transformer Lead Dress|
km1h at jeremy.mv.com
Tue Dec 11 09:42:28 EST 2007
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
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.
----- Original Message -----
From: "David Knepper" <collinsradio at comcast.net>
To: "Discussion of AM Radio in the Amateur Service"
<amradio at mailman.qth.net>
Sent: Tuesday, December 11, 2007 7:04 AM
Subject: Re: [AMRadio] Transformer Lead Dress
> Try shrink tubing.
> Dave, W3ST - W3CRA
> Collins Radio Association
> Join the largest Collins group in the world
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> ----- Original Message -----
> From: <DOXEMF at aol.com>
> To: <amradio at mailman.qth.net>
> Sent: Tuesday, December 11, 2007 1:00 AM
> Subject: [AMRadio] Transformer Lead Dress
>> 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
>> 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
>> 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.
>> Bill, KB3DKS/1
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