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(1) Tested Strong Motorola 19AU4 Tube Date Code 5727 Half Wave Rectifier

(1) Tested Strong Motorola 19AU4 Tube Date Code 5727 Half Wave Rectifier

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(1) Tested Strong Motorola 19AU4 Tube.
Date Code 5727.

The base has a very fine hairline crack in it - see photo 4. Obviously this doesn't affect performance - see test result below.

Tested on a calibrated Hickok TV-10 military tube tester with no shorts at 1350 where 800 is minimum pass/good.

~ Please view all 4 photos ~
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