Matched Pair Vintage Tung-Sol USA 6SK7GT Mesh Plate Rust Vacuum Tubes 78&88%

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Tube Type / Number: 6SK7GT
Actual Brand*: Vintage Tung-Sol
Printed Brand: Tung-Sol
Quantity of Tubes: Matched Pair
Plate Construction: Mesh
Getter Construction: Top O
Country of Manufacture: USA
Visible Date Codes: 17 & 16
Lettering Condition: 50 Percent
Year Made:
Mica Spacers: 2
Smoked Glass? No
Engraved Base? No
Boxes Included? None
Notes: Corroded Base (one)

Gm Test Results: 60 & 68

Minimum Good Value: 47
NOS Test Value: 78
Life Calculation: 78 & 88% (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.

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