Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

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Yes

Posted by unclestu (D) on February 1, 2011 at 14:34:39

In Reply to: RE: AN makes what you're looking for.. posted by xero on January 31, 2011 at 22:57:46:

There is also the joelist on the internet, which caters to the true DIYers.

Again, there were, at one time, a couple of guys actually winding custom transformers there. As you state there is a certain art to winding and a lot of that is directly linked to the kind of sound you are searching for. You need to be very specific as to the tube type and the sound you are looking for for some of these winders to build you something that will suit your taste.

Bear in mind that most commercial manufacturers use off the shelf transformers with perhaps a few instructions ( ultralinear, tertiary windings, etc.). The exact nature of the windings are often left to the actual transformer manufacturer. In speaking to Mike Sanders of Quicksilver, he told me that he has spent years to develop an output transformer to his taste, and of course he was not about to share manufacture details with a PITA like me.

You may also want to research some of the vintage outputs. I've actually seen the engineering drawings for a Heath W-6 output, a very highly rated amp and IMHO one of the best of the vintage bigger power units. Magnequest, is supposed to have access to the working prints for many of the older Altec/Peerless transformers and such, many of which are considered classics ( the 20/20 series, in particular).

If you have friends in Hong King, I seen and heard rebuilt transformers, where they take old iron and carefully disassemble and rewind the cores as best they can to the original specs. Might be interesting to see what they observe.

Stu

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