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Old 2nd Feb 2023, 4:41 pm   #8
GrimJosef
Dekatron
 
Join Date: Sep 2007
Location: Oxfordshire, UK.
Posts: 4,310
Default Re: My first single ended stereo amplifier build

Voltages at tapping points are (if the winding isn't oddly loaded) indeed just proportional to the number of turns involved. You could probably check the tapping point just by feeding a few hundred hertz signal through and measuring the AC voltages with a DMM.

If you're concerned about winding loading effects you could switch the amp off and put a few AC volts into the output transformer's secondary. People have used the 50Hz output from a low voltage mains transformer for this purpose.

Cheers,

GJ
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Last edited by GrimJosef; 2nd Feb 2023 at 4:46 pm.
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