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Classic Currents

(1) Tested Balanced Sylvania 6SN7GTB Tube Black Plates Chrome Dome Code EK BEW 6SN7GT

(1) Tested Balanced Sylvania 6SN7GTB Tube Black Plates Chrome Dome Code EK BEW 6SN7GT

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$32.95 USD
$32.95 USD
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(1) Tested Balanced Sylvania 6SN7GTB Tube with Original Box.
Date Code EK BEW.

Balanced mutual conductance (Gm) with black angled T plates and top Chrome Dome flashing.
The box has a worn down panel edge (see photos) and overall scuffing.

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

Gm Test = 2750-2750 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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