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Classic Currents

(1) Tested 1978 GE 6AC7 Tube Code EM with Micanol Base General Electric 6AC7

(1) Tested 1978 GE 6AC7 Tube Code EM with Micanol Base General Electric 6AC7

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(1) Tested GE 6AC7 Tube.
Date Code EM (February of 1978).

Minimal spots of paint loss near top of base lip.

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

Gm Test = 5250 micromhos
Minimum pass/good = 3800

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