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Classic Currents

(1) Tested Balanced RCA 12SN7GT Tube Staggered Black Plates 4-25 12SN7 GT Tube

(1) Tested Balanced RCA 12SN7GT Tube Staggered Black Plates 4-25 12SN7 GT Tube

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$18.95 USD
$18.95 USD
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(1) Tested Balanced RCA 12SN7GT Tube.
Date Code 4-25.

Balanced mutual conductance (Gm) with a bottom square D getter and staggered black ladder plates.

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 

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