Matched Pair Tung-Sol USA 6SN7GT Black T Plate Mouse Ears CB Vacuum Tubes 85%

Tube Type / Number: 6SN7GT
Actual Brand*: Tung-Sol
Printed Brand: C.M. & Emerson
Quantity of Tubes: Matched Pair
Plate Construction: Black T-Aligned-2 Rivet Bad Boy
Getter Construction: Bottom []
Country of Manufacture: USA
Visible Date Codes: ZC4842 & 322034
Lettering Condition: 90 Percent
Year Made:
Number of Mica Spacers: 2
Mica Shape: Mickey Mouse Ear
Smoked Glass? Clear
Engraved Base? No
Boxes Included? Multiple Boxes - NONE Original
Notes: BAD BOY [2], Cracked Base [1]

Gm Test Results: 2020/2260 & 1990/2090
Minimum Good Value: 1560/1560
NOS Test Value: 2400/2400
Life Calculation: 84/94% & 79/87% (where 65% = fail)

Tests as NOS?: No
True NOS?*: No

** Please note, many tubes will test NOS but will actually have a few hours of use on them. A truly NOS tube will have excellent getter flashing condition, no dirt/grime, usually in the original box, and no filament deposits. If a tube is listed  as "tests NOS" but is listed as "not True NOS" please expect the tube to have a small amount of use *

All tubes have been tested using only the best tube testers. We have a large fleet of tube testers, and every single one of them has been calibrated within the last year by industry experts. We mainly use the Hickok TV-7D/U, but occasionally we may use a Hickok 539, 533A, or 600A.