NOS Hytron [CBS] USA 6U4GT Black Plate Side Fat D Getter Vacuum Tube 6U4 100%+

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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: Hytron [CBS]
Printed Brand: Hytron
Type: 6U4GT
Number of Tubes: Single
Plate Construction: Black Smooth
Getter Construction: Side fat D
Country: USA
Visible Date Codes: 50 52
Lettering Condition: Good
Box Included: 1 Box-Not Original
Tests NOS: Yes
Actual NOS (Some Tubes Test NOS but have a few hours on them): No
Mutual Transconductance (Gm) Test Data: 60 where the minimum good value is 40 and the New Old Stock (NOS) value is 50 or 100%+ of what a new tube should test


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Additional Information

Item Type:
Vacuum Tubes
Production Era:
Vintage & NOS
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