Vacuum Tube Amplifier Theory Video

Ah, they don’t make videos like this anymore!  I learned all this stuff in the early 1970’s, including the respect for beam power tetrodes with top anodes and high voltage, ouch!  Don’t expect HD video here… this is definitely 4:3 !  Can you read the date in Roman Numerals?  1963


MAP

{"speed":500,"height":400,"pause":2000}

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