Re: The "Sussex" Homebrew Valve Tester.
Hi !
I have the project of a Sussex-like tube tester that has higher current capability to be able to test power tubes, especially those used in guitar amps such as EL34, KT88, 6V6GT etc. I left the project for a few years because I lacked time to build it, but now I'm on it again.
I have a question regarding the testing of power tubes.
Will applying a 100mVAC sinewave on the grid be enough to get a faithful reading of gm? Should I implement a sinewave level switch with according division of the signal feeding the meter ?
Thanx in advance.
Best regards
Eric
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