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Classic Currents

(1) Tested Delco 6AU5GT Tube Date Code 226 RCA EIA 6AU5 GT Beam Power Tube

(1) Tested Delco 6AU5GT Tube Date Code 226 RCA EIA 6AU5 GT Beam Power Tube

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(1) Tested Delco 6AU5GT Tube.
Date Code 226.
The 274 EIA code indicates that this tube was made by RCA for Delco.

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

Gm Test = 4450 micromhos
Minimum pass/good = 3275

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