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Classic Currents

(1) Tested Strong Westinghouse 25C5 Tube Date Code 7R39 Beam Power Tube (b)

(1) Tested Strong Westinghouse 25C5 Tube Date Code 7R39 Beam Power Tube (b)

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(1) Tested Westinghouse 25C5 Tube.
Date Code 7R39.

Tested on a calibrated Hickok TV-10 military tube tester with no shorts and no leaks with the following results:

Gm Test = 9750 micromhos
Minimum pass/good = 5650

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