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(1) Tested Strong Sylvania 6CY5 Tube with Box Date Code GK BDT Tetrode Tube

(1) Tested Strong Sylvania 6CY5 Tube with Box Date Code GK BDT Tetrode Tube

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(1) Tested Strong Sylvania 6CY5 Tube with Original Box.
Date Code GK BDT.

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

Gm Test = 6125 micromhos
Minimum pass/good = 3150

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