Technology@lemmy.worldEnglish · 3 years ago

tube tester

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tube tester

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m3t00🌎🇺🇦@lemmy.world to

Technology@lemmy.worldEnglish · 3 years ago

tube tester

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cmnybo@discuss.tchncs.de
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3 years ago
They are still commonly used in RF amplifiers for ham radio too.

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