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(1) Tested 1955 Sylvania 6EW6 Tube Date Code 548 Sharp Cutoff Pentode Tube

(1) Tested 1955 Sylvania 6EW6 Tube Date Code 548 Sharp Cutoff Pentode Tube

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(1) Tested Sylvania 6EW6 Tube.
Date Code 548 (48th week of 1955).

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

Gm Test = 2150 micromhos
Minimum pass/good = 1400

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