GE USA 6DE7 Black Plate Top O Get TESTS LOW Vacuum Tube 93/45%

Tube Type / Number: 6DE7
Actual Brand*: GE
Printed Brand: GE
Quantity of Tubes: Single
Plate Construction: Black
Getter Construction: Top O
Country of Manufacture: USA
Visible Date Codes: U
Lettering Condition: 90 Percent
Year Made:
Mica Spacers: 2
Smoked Glass? No
Engraved Base? No
Boxes Included? 1 Box - Not Original
Notes: TUBE TESTS LOW - NO GUARANTEE - Woo Audio WA-6, Hallicrafters HT-42

Gm Test Results: 78/24
Minimum Good Value: 51/33
NOS Test Value: 84/54
Life Calculation: 93/45% (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.