Quote:
Originally Posted by electroking
The AM-2 amplifier they describe uses:
2 x 300B rectifiers, 300B output tube.
Interesting tube that works both as an amplifier and rectifier...
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That 300B is a Western Electric (design) triode power tube. Designed for audio output. Almost any audio output tube "could" be used as a rectifier. It was Western Electric design practice to use same tube as audio output and also as rectifier.