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Classic Currents

(1) Tested Sylvania 6GU7 Tube Date Code ad AFJ Sylvania 6GU7 Twin Triode Tube

(1) Tested Sylvania 6GU7 Tube Date Code ad AFJ Sylvania 6GU7 Twin Triode Tube

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$8.95 USD
$8.95 USD
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(1) Tested Sylvania 6GU7 Tube.
Date Code ad AFJ. The wording is partially worn off but still recognizable as being Sylvania branded.

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

Gm Test = 1350-1400 micromhos
Minimum pass/good = 1025-1025

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