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: 5AQ5 [4.7V 6AQ5]
Number of Tubes: Single
Plate Construction: Black Smooth
Getter Construction: Top 
Visible Date Codes: I6V
Lettering Condition: Completely Rubbed Off
Box Included: None
Tests NOS: No
Actual NOS (Some Tubes Test NOS but have a few hours on them): No
Mutual Transconductance (Gm) Test Data: 62 where the minimum good value is 46 and the New Old Stock (NOS) value is 75 or 83% of what a new tube should test
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