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  • Ken-Rad USA JAN-CKR-6AC7 Metal Vacuum Tube 73%

Ken-Rad USA JAN-CKR-6AC7 Metal Vacuum Tube 73%

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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: Ken-Rad
Printed Brand: Ken-Rad
Type: JAN-CKR-6AC7 [6J4]
Number of Tubes: Single
Plate Construction: Metal
Getter Construction: Metal
Country: USA
Visible Date Codes: VT-112 H5
Lettering Condition: Good
Box Included: 1 Box-Not Original
Tests NOS: No
Actual NOS (Some Tubes Test NOS but have a few hours on them): No
Mutual Transconductance (Gm) Test Data: 36 where the minimum good value is 30 and the New Old Stock (NOS) value is 49 or 0.73 of what a new tube should test


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