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Unwinding secondary
Unwinding secondary
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Old 18th October 2003, 01:20 AM   #1
peter5 is offline peter5
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Join Date: Jun 2001
Default 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.


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Old 18th October 2003, 03:45 AM   #2
Variac is offline Variac  Costa Rica
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Join Date: Dec 2001
Location: San Francisco, USA San José, Costa Rica
Unwinding secondary
I prefer to use a Variac to lower the volts as a test first-but that's just me
"The geek shall inherit the earth"
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Old 18th October 2003, 04:05 AM   #3
Jocko Homo is offline Jocko Homo  United States
Join Date: Feb 2002
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Default Agreed........

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

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Old 20th October 2003, 04:35 AM   #4
wrl is offline wrl  United States
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Join Date: Jan 2003
Location: USA
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,

Anything worth doing is worth doing right... and redoing to make it better... and again to fix it back the way it was.
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