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Classic Currents

(1) Tested RCA 6SN7GTB Tube Code KR Black Offset Plates Bottom D Getter 6SN7GT

(1) Tested RCA 6SN7GTB Tube Code KR Black Offset Plates Bottom D Getter 6SN7GT

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(1) Tested RCA 6SN7GTB Tube.
Date Code KR.

Black offset plates with a bottom D getter.

The wording on the base is partially worn away but still legible.
The tube number is worn off of the glass.

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 = 2625-2750 micromhos
Minimum pass/good = 1650-1650
NOS Target Value = 2475-2475

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

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