Feb 12, 2019
A Classic Tube Tester
A Classic Tube Tester
Funny how things come full circle. When I was a young electronics experimenter, tube equipment was cheap and solid state devices were expensive and exotic. I could work with low-power diodes and transistors, but to accomplish anything with some power, tube circuits were king. Parts were salvaged from old tube equipment, and surplus radios and transmitters were all tube powered. My grandfather had…
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