Trevor Wilson wrote:

**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.

So, it's basically the same method as the two-layer version, repeated. Does
the lay-up of the winding have to be done in some kind of even pattern, or
can it just be wound on to produce layers of even thickness? You said that
the process is difficult to get right - what bits would be difficult to get
right?

What's the deal with the grain-oriented plates? What advantage(s) do they
have, and how pricey are they compared to the non-oriented variety?


--
Wally
www.artbywally.com
www.wally.myby.co.uk