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Classic Currents

(1) Tested 1958 Western Electric 404A Tube Black Plates Square Getter Code 5813

(1) Tested 1958 Western Electric 404A Tube Black Plates Square Getter Code 5813

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(1) Tested 1958 Western Electric 404A Tube.
Date Code 5813 places the production to January - March of 1958.

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 = 6000 micromhos
Minimum pass/good = 4600

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