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Classic Currents

Tested Matched Pair 1968 Western Electric 415A Tubes Black Plate Codes 6852 6839

Tested Matched Pair 1968 Western Electric 415A Tubes Black Plate Codes 6852 6839

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$22.95 USD
$22.95 USD
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Tested Matched Pair of 1968 Western Electric 415A Tubes.
Date Codes 6839 and 6852 places the production to July - September of 1968 and October - December of 1968.

Similar to a 6AS6.
Tubes are closely matched for Gm testing (see below), 1968 date codes and internal structure - they are identical.
Black plates with top square getters.

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

Gm Test = 2500 and 2000 micromhos
Minimum pass/good = 1540

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