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  • Delco USA 25L6G Black Ribbed Plate Smoked Glass Vacuum Tube 25L6 76%

Delco USA 25L6G Black Ribbed Plate Smoked Glass Vacuum Tube 25L6 76%

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Product 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: Delco
Printed Brand: Delco
Type: 25L6G
Number of Tubes: Single
Plate Construction: Black Ribbed
Getter Construction:
Country: USA
Visible Date Codes: S8
Lettering Condition: Average
Box Included: None
Tests NOS: No
Actual NOS (Some Tubes Test NOS but have a few hours on them): No
Notes: Smoked Glass
Mutual Transconductance (Gm) Test Data: 56 where the minimum good value is 45 and the New Old Stock (NOS) value is 74 or 76% of what a new tube should test


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