• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

How to measure output transformer?

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disco

disco

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Joined 2006
trobbins said:
That could be at quite low rms voltage for easy listening level, or it could be at max rated signal level at onset of output stage clipping where amp distortion is naturally a high level and your ears are complaining. Hence the generic use of a commonly available test voltage (5Vac 50/60Hz).
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The mistake made is to test the primary for inductance with this low voltage, like mentioned a couple of times already in this thread.
 
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