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(1) Tested Hewlett Packard 6AU5GT Tube Date Code 60-09 RCA EIA 6AU5 GT Tube

(1) Tested Hewlett Packard 6AU5GT Tube Date Code 60-09 RCA EIA 6AU5 GT Tube

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(1) Tested Hewlett Packard 6AU5GT Tube.
Date Code 60-09.
The 274 EIA code indicates that this tube was made by RCA for Hewlett Packard.

The tube number is partially worn off of the glass.

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

Gm Test = 4900 micromhos
Minimum pass/good = 3275

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