• 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.

OPT with cathode feedback

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T

tinitus

Ex-Moderator R.I.P.
Joined 2005
is this 'just' an OTL, with OPT coupled as choke with CFB

meaning, OPT does nothing to transform output impedance
thus multiple output tubes will be needed

:confused:
 

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