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Unknown Brand USA 6AU6 [EF94] Black Plate Top [D] Getter Vacuum Tube 94%

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SKU:
TS2976
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$2.76

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Description

Matched, Tested & Guaranteed Vacuum Tubes

All tubes are guaranteed to be 100% as described or your money back. All tubes have been tested for mutual transconductance, shorts, leaks, gas and noise on my calibrated Hickok TV-7/U.

Any pair of quad described as matched means that the tubes will have the same exact construction and will test within a close range of each other for Mutual Transconductance. The last criteria is date codes, which I do match when possible.

Actual Brand: Unknown Brand
Printed Brand: Unknown Brand
Type: 6AU6 [EF94]
Number of Tubes: Single
Plate Construction: Black
Getter Construction: Top Horseshoe [D]
Country: USA
Visible Date Codes:
Lettering Condition: Completely Rubbed Off
Box Included: 1 Box-Not Original
Tests NOS: No
Actual NOS (Some Tubes Test NOS but have a few hours on them): No
Notes:
Mutual Transconductance (Gm) Test Data: 89 where the minimum good value is 58 and the New Old Stock (NOS) value is 95 or 94% of what a new tube should test

 


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