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(1) Tested National Union 6D6 Tube Code 1U MR Remote Cutoff Pentode Vacuum Tube

(1) Tested National Union 6D6 Tube Code 1U MR Remote Cutoff Pentode Vacuum Tube

Tested and Guaranteed

$11.95 USD
$11.95 USD
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(1) Tested National Union 6D6 Tube.
Date code 1U. MR (Maintenance and Repair).

The wording on the base is a bit faded - see photos.

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

Gm Test = 1625 micromhos
Minimum pass/good = 1000

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