(1) Tested Tung Sol 6C6 Tube.
Date Code 626.
The wording on the base is slightly smudged from production.
There is a subtle rattle inside of the base from loose cement but the base is tight and secure with no movement.
This tube tests as NOS.
Tested on a calibrated Hickok TV-10 military tube tester and exhibiting no shorts or leaks with the following results:
Gm Test = 1275 micromhos
Minimum pass/good = 770
NOS rating = 1155
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