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Classic Currents

(1) Tested Balanced Sylvania 6CG7/6FQ7 Tube Gray Plates 6CG7 Tube 6FQ7

(1) Tested Balanced Sylvania 6CG7/6FQ7 Tube Gray Plates 6CG7 Tube 6FQ7

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(1) Tested Balanced Sylvania 6CG7/6FQ7 Tube.

Gray Plates.

The wording is mostly worn off but the Sylvania shield logo is still recognizable.

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

Gm Test = 2500-2500 micromhos
Minimum pass/good = 1650-1650

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