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Classic Currents

Tested Matched Pair 1965 Sylvania JHS 6BJ6A Tubes Mil Spec Codes 65-13 Pentodes

Tested Matched Pair 1965 Sylvania JHS 6BJ6A Tubes Mil Spec Codes 65-13 Pentodes

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Tested Matched Pair of 1965 Sylvania JHS-6BJ6A Mil Spec Tubes.
Date Code 65-13 (3rd week of January, 1965).

Tubes are closely matched for mutual conductance (Gm), date codes and internal structure - of which they are identical.

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

Gm Test = 3550 and 3600 micromhos
Minimum pass/good = 2400

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