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(1) Tested Strong Hytron 12BA7 Tube Date Code 5009 Pentagrid Converter Tube

(1) Tested Strong Hytron 12BA7 Tube Date Code 5009 Pentagrid Converter Tube

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(1) Tested Strong Hytron 12BA7 Tube.
Date Code 5009.

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

Gm Test = 925-825 micromhos
Minimum pass/good = 470-470

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