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Classic Currents

(1) Tested Strong RCA 6DW4B Tube Date Code B4 Half Wave Vacuum Rectifier

(1) Tested Strong RCA 6DW4B Tube Date Code B4 Half Wave Vacuum Rectifier

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(1) Tested Strong RCA 6DW4B Tube.
Date Code B4.

Tested on a calibrated Knight KG-600B tube tester with no shorts and no leaks where 50 is minimum pass/good with the following results:

RCA = 100

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