1 6

Classic Currents

(1) Tested Zenith 6SN7GTB Tube Code 613 Black Plates Chrome Sylvania EIA 6SN7 GT

(1) Tested Zenith 6SN7GTB Tube Code 613 Black Plates Chrome Sylvania EIA 6SN7 GT

Tested and Guaranteed

$28.95 USD
$28.95 USD
Sale Sold out
Shipping calculated at checkout.
(1) Tested Zenith 6SN7GTB Tube.
Date Code 613.
The 312 EIA code indicates that this tube was made by Sylvania for Zenith.

Chrome Dome envelope flashing with black angled T plates and clear mica spacers.

This tube tests above NOS specs.

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

Test Result = 2875-2625 micromhos
Minimum pass/good = 1650-1650

Also performance tested in-circuit through a Class A amplifier with no microphonics detected.

~ Please view all 6 photos ~
View full details

View All