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Classic Currents

(1) Tested Tung Sol 201-A Tube Type 01A Tube Engraved Base Globe Tube Code 12-2

(1) Tested Tung Sol 201-A Tube Type 01A Tube Engraved Base Globe Tube Code 12-2

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$138.95 USD
$138.95 USD
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(1) Tested Very Strong Tung Sol 201A Tube (01A Tube).
Date Code 12-2.
Very rare globe/balloon envelope version.
Engraved base is tight and secure with no looseness.
The tube number near the top is a bit faded but still legible - see photo.

This tube tests as NOS.

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

Gm Test = 850 micromhos
Minimum pass/good = 460
NOS rating = 690

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