Matched Pair Sylvania USA 6CG7 [6FQ7] 3 Gray Plate Top O Get Vacuum Tubes 72%

Tube Type / Number: 6CG7 [6FQ7]
Actual Brand*: Sylvania
Printed Brand: Sylvania
Quantity of Tubes: Matched Pair
Plate Construction: 3 Gray
Getter Construction: Top O
Country of Manufacture: USA
Visible Date Codes: M3 & 222 C c
Lettering Condition: 10 Percent
Year Made:
Mica Spacers: 2
Smoked Glass? No
Engraved Base? No
Boxes Included? 2 Boxes - Both NOT Original
Notes: Silver Center Plate (Both)

Gm Test Results: 60/72 & 58/90
Minimum Good Value: 50/50
NOS Test Value: 82/82
Life Calculation: 72/88 & 71/110% (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.