I agree John, that is a first class presentation. Ive reused old power
transformers way in the past for 4-1000A filament transformers and a few
other tubes but nothing Id allow to be photographed (-;
Carl
KM1H
----- Original Message -----
From: "John Lyles" <jtml@losalamos.com>
To: <amps@contesting.com>
Sent: Tuesday, February 23, 2010 12:17 PM
Subject: [Amps] Tranformer construction webpages
>I agree with Steve, Manfred's treatise on transformer construction is first
>class. Loaded with very practical advice and it demonstrates that he has
>much experience in making transformers. I only made one in my life,
> in college at Virginia Polytechnic, as part of a lab course, we had to
> make a small power transformer. Most of the guys (there were no girls in
> that class!) couldn't get their winding on a bobbin without it falling off
> the edges,
> and for some reason I decided that a piece of tape across each layer, plus
> putting glue (not varnish) in the ends to seal it tight would make it stay
> together. Some patience needed also. Mine did work, transformation
> correct, and I may have gotten
> an A grade in that lab, but that's as far as my transformer design
> experience went. But Manfred's website makes it look fun and - well, not
> exactly easy - explains the sorts of tricks are needed to make a tight,
> compact,
> reliable and functional power transformer. Thanks for putting that
> together and in the public domain.
>
> 73
> John
> K5PRO
>
>> Message: 3
>> Date: Mon, 22 Feb 2010 22:12:28 EST
>> From: K1SG@aol.com
>> Subject: Re: [Amps] Transformer winding
>> To: amps@contesting.com
>>
>> Manfred, your transformer winding page is a delight, loaded with good
>> information.
>> Thanks for the excellent information and practical suggestions!
>> One question...I see your name in your postings, but never your callsign.
>> What is it?
>>
>> Steve Gilbert
>
>
>> http://ludens.cl/Electron/trafos/trafos.html
>
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