• 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.

transconductance conversion

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Transconductance or conductivity is the invers of resistance, hence ohm gives mho :cheeky:
Ohm's is V/A so mho is A/V and mmho mA/V.
Today conductivity is expressed in Siemens 1S=1A/1V.
Not mA/V anymore but mS 😱 ,mostly used with mosfet.Tubes are old stuff, they stuck at mA/V 😀
Mona
 
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