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Classic Currents

(1) Tested 1954 Sylvania 12V6GT Tube Code 426 Black Glass Chrome Dome 12V6 GT

(1) Tested 1954 Sylvania 12V6GT Tube Code 426 Black Glass Chrome Dome 12V6 GT

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(1) Tested Sylvania 12V6GT Tube.
Date Code 426 (26th week of 1954).

Black glass envelope with chrome dome getter flashing.

The tube number on the top is faded.

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

Gm Test = 4350 micromhos
Minimum pass/good = 2320

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