(1) Tested CBS JAN-CHY-12SN7GT Tube.
Date Code 5843.
Black angled T plates with a side horseshoe getter.
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 = 3000-2750 micromhos
Minimum pass/good = 1650-1650
NOS Target Value = 2475-2745
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