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Classic Currents

(1) Tested 1949 Western Electric 6AK5 403A Tube Code 939 Square Halo Getter

(1) Tested 1949 Western Electric 6AK5 403A Tube Code 939 Square Halo Getter

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$16.95 USD
$16.95 USD
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(1) Tested 1949 Western Electric 6AK5/403A Tube.
Date Code 939 which places production to July - September of 1949.

Black plates with a top angled square halo getter.

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

Gm Test = 3750 micromhos
Minimum pass/good = 2750

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