National Union
National Union [NU] USA 6SK7GT Black Ribbed Plate Top [] Get Vacuum Tube 79%
- SKU:
- TX1609
- UPC:
- 6SK7GT
- MPN:
- 6SK7GT
- Availability:
- Ships in 1 business day or less.
- Shipping:
- Calculated at Checkout
Description
Tube Type / Number: 6SK7GT
Actual Brand*: National Union [NU]
Printed Brand: National Union
Quantity of Tubes: Single
Plate Construction: Black Ribbed
Getter Construction: Top []
Country of Manufacture: USA
Visible Date Codes: ER
Lettering Condition: 90 Percent
Year Made:
Mica Spacers: 2
Smoked Glass? No
Engraved Base? No
Boxes Included? 1 Box - Not Original
Notes:
Gm Test Results: 62
Minimum Good Value: 47
NOS Test Value: 78
Life Calculation: 79% (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.