• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
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    the safety precautions around high voltages.

EL34 PP output transformers

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D

decramer

Member
Joined 2011
This famous winding was connected a sealed and potted circuit with input from 2 EF86's and output to 2 ECC82's.
Nothing connected and only "F" , Rdc=15.9 ohm , L=811mH , Capacitance=33nF , Z=1k6 ohm . Same wire as primaries.
With 1kHz sine 1.9V to E (or D), I have 1.2V @ F , 57mV @ A , 68mV @ B and 94mV @ C
 
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