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(1) Tested Sylvania 12AU7A Tube Date Code ah AFC 12AU7 A Gray Plates Halo Getter

(1) Tested Sylvania 12AU7A Tube Date Code ah AFC 12AU7 A Gray Plates Halo Getter

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$14.95 USD
$14.95 USD
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(1) Tested Sylvania 12AU7A Tube.
Date Code ah AFC.

Gray plates with a top halo O ring getter.

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

Gm Test = 1885-1775 micromhos
Minimum pass/good = 1400-1400

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