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peter5 18th October 2003 01:20 AM

Unwinding secondary
I've been building a Leach amp for a long time now and I still can't seem to get it to work. Recently I've begun to think that my voltage is too high. The toroidal transformer I'm using is rated at 88 vct so after rectifier/filter I'm getting about +/- 62 volts.

Is this too high? If it is, can somebody tell me how to unwind the secondary or is it not a feasible/safe DIY job?

Any input would be welcome.



Variac 18th October 2003 03:45 AM

I prefer to use a Variac to lower the volts as a test first-but that's just me ;)

Jocko Homo 18th October 2003 04:05 AM

Toroids work best when the turns are evenly spaced around the core. Removing turns would upset that.


wrl 20th October 2003 04:35 AM

Um, I would recomend that you just get the victoria magnets transformer. It is a good transformer and might make it so you don't set your amp (or your dorm) on fire (again). Maybe you should get bigger heatsinks also while your at it. Oh, and build a set of electrostatic loudspeakers. Don't forget that preamp either.

BTW while we are at it, did you ever get that momentary switch working?? Or what about that CD pro II?

If you need inspiration you could probably talk to your suitemates. They might have a few suggestions.

Best of Luck,

Wes :smash:

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