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Classic Currents

Tested Matched Balanced Pair Sylvania Type 24A Tubes Engraved Codes J7R & 7JR

Tested Matched Balanced Pair Sylvania Type 24A Tubes Engraved Codes J7R & 7JR

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$32.95 USD
$32.95 USD
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Tested Matched and Balanced Pair of Sylvania Type 24A Engraved Base Tubes.
Date Codes J7R and 7JR.

Tubes are matched for Gm testing (see below) and internal structure - 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 = 1150 and 1150 micromhos
Minimum pass/good = 630

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