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(1) Tested RCA 12BR7 Tube with Box Date Code AV Twin Diode Triode Vacuum Tube

(1) Tested RCA 12BR7 Tube with Box Date Code AV Twin Diode Triode Vacuum Tube

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(1) Tested RCA 12BR7 Tube with Original Box.
Date Code AV.

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

Gm Test = 3250 micromhos
Minimum pass/good = 2500
Each diode section tests at 1075-1050 where 800 is minimum pass/good.

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