Sylvania
NOS NIB Sylvania USA 7AU7 Gray Wrinkled Plate Top O Get Vacuum Tube 100+%
- SKU:
- TX6998
- Availability:
- Ships in 1 business day or less.
- Shipping:
- Calculated at Checkout
Description
Tube Type / Number: 7AU7
Actual Brand*: Sylvania
Printed Brand: Sylvania
Quantity of Tubes: Single
Plate Construction: Gray Wrinkled
Getter Construction: Top O
Country of Manufacture: USA
Visible Date Codes: ag ABU
Lettering Condition: 75 Percent
Year Made:
Mica Spacers: 2
Smoked Glass? No
Engraved Base? No
Boxes Included? 1 Box - Original
Notes: Copper Grids
Gm Test Results: 98/98
Minimum Good Value: 56/56
NOS Test Value: 92/92
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.