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Classic Currents

(1) Tested 1963 Northern Electric 408A Tube Made in Canada Date Code 6313

(1) Tested 1963 Northern Electric 408A Tube Made in Canada Date Code 6313

Made in Canada

$12.95 USD
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(1) Tested 1963 Northern Electric 408A Tube.
Made in Canada.
Date Code 6313 places the production to January - March of 1963.

Black plates with a top square D 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 = 2480

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