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Classic Currents

(1) Tested Truetone 6CR6 Tube with Box Date Code 617 Diode Pentode Tube (b)

(1) Tested Truetone 6CR6 Tube with Box Date Code 617 Diode Pentode Tube (b)

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(1) Tested Truetone 6CR6 Tube with Original Box.
Date Code 617.
The 280 EIA code indicates that this tube was made by Raytheon for Truetone.

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

Gm Test = 2275 micromhos
Minimum pass/good = 1250
The diode section tests at 1325 where 800 is minimum pass/good.

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