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(1) Tested Sylvania 25BQ6GT Tube Date Code FF MJH Sylvania 25BQ6 GT Power Tube

(1) Tested Sylvania 25BQ6GT Tube Date Code FF MJH Sylvania 25BQ6 GT Power Tube

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(1) Tested Strong Sylvania 25BQ6GT Tube.
Date Code FF MJH

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

Gm Test = 5200 micromhos
Minimum pass/good = 2800

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