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.
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: Etelco
Printed Brand: Etelco
Type: GC-10B
Number of Tubes: Single
Plate Construction:
Getter Construction: Bottom []
Country: GT.Britain
Visible Date Codes:
Lettering Condition: Average
Box Included: None
Tests NOS:
Actual NOS (Some Tubes Test NOS but have a few hours on them): No
Notes: Deckatron Display
Mutual Transconductance (Gm) Test Data: Untested, Appears Good, Returns Accepted For DOA Tubes where the minimum good value is N/A and the New Old Stock (NOS) value is N/A
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Printed Brand: Etelco
Type: GC-10B
Number of Tubes: Single
Plate Construction:
Getter Construction: Bottom []
Country: GT.Britain
Visible Date Codes:
Lettering Condition: Average
Box Included: None
Tests NOS:
Actual NOS (Some Tubes Test NOS but have a few hours on them): No
Notes: Deckatron Display
Mutual Transconductance (Gm) Test Data: Untested, Appears Good, Returns Accepted For DOA Tubes where the minimum good value is N/A and the New Old Stock (NOS) value is N/A