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(1) Tested Very Strong RCA 5654 Tube (6AK5) Code BK Sharp Cutoff Pentode Tube

(1) Tested Very Strong RCA 5654 Tube (6AK5) Code BK Sharp Cutoff Pentode Tube

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(1) Tested Very Strong RCA 5654 Tube (6AK5 equivalent).
Date Code BK.

The wording is partially worn but still legible.

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

Gm Test = 4925 micromhos
Minimum pass/good = 2780

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