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  • CBS-Hytron USA 0Z4 Metal Vacuum Tube Tube

CBS-Hytron USA 0Z4 Metal Vacuum Tube Tube

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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: CBS-Hytron
Printed Brand: CBS
Type: 0Z4
Number of Tubes: Single
Plate Construction: Metal
Getter Construction: Metal
Country: USA
Visible Date Codes: XE
Lettering Condition: Good
Box Included: None
Tests NOS: No
Actual NOS (Some Tubes Test NOS but have a few hours on them): Yes
Mutual Transconductance (Gm) Test Data: 64/58 where the minimum good value is 40 and the New Old Stock (NOS) value is 60

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