I need to measure G7 output impedance.
Is the voltage drop method sufficient?
Feeding input of the preamp with 1V/1kHz through the 55-75 pF capacitor and measure drop at the output using potentiometer and multimeter or oscilloscope?
Second thing, how to detrmine pentode (wired as triode) output impedance?
I know that EF86 output impedance in triode mode is 15K, but i need to determine E80F impedance.
Is the voltage drop method sufficient?
Feeding input of the preamp with 1V/1kHz through the 55-75 pF capacitor and measure drop at the output using potentiometer and multimeter or oscilloscope?
Second thing, how to detrmine pentode (wired as triode) output impedance?
I know that EF86 output impedance in triode mode is 15K, but i need to determine E80F impedance.