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(1) Tested Unbranded 21GY5 Tube Vintage Beam Power Vacuum Tube

(1) Tested Unbranded 21GY5 Tube Vintage Beam Power Vacuum Tube

Tested and Guaranteed

$9.95 USD
$9.95 USD
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(1) Tested Unbranded 21GY5 Tube.
Manufacturer unknown.

Tested on a calibrated Knight KG-600B tube tester with no shorts and no leaks where 50 is minimum pass/good with the following results:

Unbranded 21GY5 = 98

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