Matched Pair Sylvania USA 6L6GA Black Plate [] Get Used Vacuum Tubes 68% & 85%

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Tube Type / Number: 6L6GA
Actual Brand*: Sylvania
Printed Brand: Silvertone
Quantity of Tubes: Matched Pair
Plate Construction: Black
Getter Construction: []
Country of Manufacture: USA
Visible Date Codes: B6W/F6R & A6S/6P
Lettering Condition: 90 Percent
Year Made:
Number of Mica Spacers: 2Round
Glass Coating: Clear
Engraved Base? No
Boxes Included? Multiple Boxes - NONE Original
Notes: Colored Getter Flash Indicating Hours Of Use - Tests Good, Should Work Great, Both Tubes Rattle, 3 Digit Stop Sign Codes

Gm Test Results: 28 & 35

Minimum Good Value: 25
NOS Test Value: 41
Life Calculation: 68% & 85% (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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