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Classic Currents

(1) Tested Sylvania 12C8 Tube Code 2S Twin Diode Remote Cutoff Pentode Tube

(1) Tested Sylvania 12C8 Tube Code 2S Twin Diode Remote Cutoff Pentode Tube

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(1) Tested Sylvania 12C8 Tube.
Stamped date code on rim 2S.

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

Gm Test = 1350 micromhos
Minimum pass/good = 725
Each diode section tests at 1200-1275 where 800-800 is minimum pass/good.

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