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Old June 9th 04, 08:05 PM posted to uk.rec.audio
Trevor Wilson
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Posts: 242
Default Anyone Got a Cheap Valve Power Amp or Integrated Amp For Sale?


"Wally" wrote in message
...
Trevor Wilson wrote:

Why should someone who elects to take a different approach from what
you advocate *deserve* problems?


**They only deserve problems, AFTER ignoring good, logical, sensible
advice (like listening/examining first).


You haven't answered my question - why do they DESERVE problems?


**It is the only way some people learn.



**My pleasure. I learned about such things many years ago. I serviced
an amplifier whose output transformer had gone belly-up. I took it to
the rewinder. He called me a few days later, uttering many
profanities. It had 15 interleaves and cost a small fortune to
rebuild.


Are these things made by rotating the former and drawing the wire onto it,
or is there some 'arm' thingy that moves around a static former? (I'm

trying
to visualise how the sucessive interleaves connect to each other.)


**To be honest, I haven't watched a rewinder ply his craft. However, the
usual method is to rotate the former. With a power transformer (and cheap,
crappy valve amp output transformers), it is a two step operation.
1) Wind primary.
2) Wind secondary.

With a quality, interleaved output transformer, it goes kinda like this:
1) Wind some primary.
2) Terminate.
3) Wind some secondary.
4) Terminate.
5) - N) Repeat for the required number of interleaves.


--
Trevor Wilson
www.rageaudio.com.au