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(1) Tested Very Strong GE 6CU5 with Box Date Code EL Gray Plate Power Pentode

(1) Tested Very Strong GE 6CU5 with Box Date Code EL Gray Plate Power Pentode

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$7.95 USD
$7.95 USD
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(1) Tested Very Strong GE 6CU5 Tube with Original Box.
Date Code EL. Gray plate.

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

Gm Test = 10,500 micromhos
Minimum pass/good = 5650

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