NOS NIB Date Matched Trio 3 Servicemaster 6AW8A Bridged Fila Vacuum Tubes

Tube Type / Number: 6AW8A
Actual Brand*: International Servicemaster
Printed Brand: International Servicemaster
Quantity of Tubes: Date Matched Trio (3)
Plate Construction: Gray
Getter Construction: Top O
Country of Manufacture: USA
Visible Date Codes: 922-77 [3]
Lettering Condition: 90 Percent
Year Made:
Number of Mica Spacers: 2
Mica Shape: Sawblade
Smoked Glass? Gray Smoked-Half
Engraved Base? No
Boxes Included? Multiple Boxes - ALL Original
Notes: Bridged Filaments

Gm Test Results: 50/43 & 49/41 & 50/45
Minimum Good Value: 38/20
NOS Test Value: 48/30
Life Calculation: 100+% (where 65% = fail)

Tests as NOS?: Yes
True NOS?*: Yes

** 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.