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Classic Currents

Tested Matched Pair CBS 6SN7GTB Tubes Black Angles T Plates Horseshoe 6SN7GT

Tested Matched Pair CBS 6SN7GTB Tubes Black Angles T Plates Horseshoe 6SN7GT

Tested and Guaranteed

$124.95 USD
$124.95 USD
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Tested Matched Pair of CBS 6SN7GTB Tubes.
Date Codes 58-39.

Tubes are matched for Gm testing within 5% (see below) and internal structure - they are identical.
Black angled T plates with side horseshoe D getters.
The wording is partially worn on the base of one but still recognizable as being CBS branded.

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

Gm Test = 2375-2500 and 2500-2500 micromhos
Minimum pass/good = 1650-1650

Further tested under real operating conditions on a Class A amplifier and exhibiting no microphonics.

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