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Classic Currents

(1) Tested Tele-Tone 25L6GT Tube Date Code 9-26 RCA EIA TeleTone 25L6 GT Tube

(1) Tested Tele-Tone 25L6GT Tube Date Code 9-26 RCA EIA TeleTone 25L6 GT Tube

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(1) Tested Tele-Tone 25L6GT Tube.
Date Code 9-26.
The EIA code indicates that this tube was made by RCA for Teletone.

The glass has a slight lean to it. See results below.

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

Gm Test = 8750 micromhos
Minimum pass/good = 5650

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