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Classic Currents

Tested Matched Pair 1945 Sylvania JAN CHS 3S4 Tubes with Boxes Date Codes E4 (a)

Tested Matched Pair 1945 Sylvania JAN CHS 3S4 Tubes with Boxes Date Codes E4 (a)

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Tested Matched Pair of 1945 Sylvania JAN-CHS-3S4 VT-174 Mil-Spec Tubes with Original Boxes.
Date Codes E4.

Each box has a wartime acceptance date of 2/45 (February 1945).

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

Gm Test = 1725 and 1775 micromhos
Minimum pass/good = 940

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