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Classic Currents

Matched Pair Sylvania 6SN7GTB Tubes Codes KF HA Black Plates Halo Gets 6SN7GT

Matched Pair Sylvania 6SN7GTB Tubes Codes KF HA Black Plates Halo Gets 6SN7GT

Tested and Guaranteed

$124.95 USD
$124.95 USD
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Tested Matched Pair of Sylvania 6SN7GTB Tubes.
Date Codes kf BJV and HA BZL.

Tubes are closely matched for Gm testing within 10% (see below) and internal structure - they are identical.
Red letter black bases. Black angled T plates with top round halo getters and clear mica spacers.

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

Gm Test = 2375-2625 and 2500-2625 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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