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(1) Tested RCA 50B5 Tube Date Code MB RCA 50B5 Beam Power Vacuum Tube (a)

(1) Tested RCA 50B5 Tube Date Code MB RCA 50B5 Beam Power Vacuum Tube (a)

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(1) Tested RCA 50B5 Tube.
Date Code MB.

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

Gm Test = 9000 micromhos
Minimum pass/good = 5650

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