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(1) Tested Strong RCA 6CS6 Tube with Box Date Code KT Heptode Vacuum Tube

(1) Tested Strong RCA 6CS6 Tube with Box Date Code KT Heptode Vacuum Tube

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(1) Tested RCA 6CS6 Tube with Original Box.
Date Code KT.

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 = 625-725 micromhos
Minimum pass/good = 190-315
NOS rating = 285-475

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