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(1) Tested RCA 3AU6 Tube with Box Date Code FB Sharp Cutoff Pentode (b)

(1) Tested RCA 3AU6 Tube with Box Date Code FB Sharp Cutoff Pentode (b)

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$9.95 USD
$9.95 USD
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(1) Tested Strong RCA 3AU6 Tube with Original Box.
Date Code FB.

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

Gm Test = 3500 micromhos
Minimum pass/good = 2050

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