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Classic Currents

(1) Tested 1953 Western Electric 337A Tube Date Code 326 Variable Mu Pentode

(1) Tested 1953 Western Electric 337A Tube Date Code 326 Variable Mu Pentode

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$298.95 USD
$298.95 USD
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(1) Tested 1953 Western Electric 337A Tube.

Date Code 326 which places the production of this tube to April - June of 1953.

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

Gm Test = 1600 micromhos
Minimum pass/good = 1070

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