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Tube Type / Number: JAN-CLRV-12SX7GT
Actual Brand*: GE
Printed Brand: GE
Quantity of Tubes: Single
Plate Construction: T 3 Rivet Bad Boy, Black Ribbed
Getter Construction: Bottom 
Country of Manufacture: Canada
Visible Date Codes: 61-30
Lettering Condition: 90 Percent
Mica Spacers: 2
Smoked Glass? No
Engraved Base? No
Boxes Included? 1 Box - Not Original
Notes: Short Base, Tall Bottle, Copper Grids
Gm Test Results: 48/55
Minimum Good Value: 33/33
NOS Test Value: 54/54
Life Calculation: 89/102% (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.