1 5

Classic Currents

(1) Tested Balanced Motorola 12SN7GT Tube Black T Plates Code 444 12SN7 GT

(1) Tested Balanced Motorola 12SN7GT Tube Black T Plates Code 444 12SN7 GT

Made by Sylvania for Motorola

$18.95 USD
$18.95 USD
Sale Sold out
Shipping calculated at checkout.
(1) Tested Balanced Motorola 12SN7GT Tube.
Date Code 444.
The 312 EIA code indicates that this tube was made by Sylvania for Motorola.

Balanced Gm results with black 3 hole T plates in a chrome dome envelope.

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

Gm Test = 2000-2000 micromhos
Minimum pass/good = 1650-1650

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

~ Please view all 5 photos ~
View full details

View All