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  • NOS Matched Pair Vintage USA 6L6 Metal rust Vacuum Tubes 100+%

NOS Matched Pair Vintage USA 6L6 Metal rust Vacuum Tubes 100+%

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Product Description

Tube Type / Number: 6L6
Actual Brand*: Unknown
Printed Brand: Unknown
Quantity of Tubes: Matched Pair
Plate Construction: Metal
Getter Construction: Metal
Country of Manufacture: USA
Visible Date Codes:
Lettering Condition: 0 Percent
Year Made:
Number of Mica Spacers:
Glass Coating:
Engraved Base? No
Boxes Included? Multiple Boxes - NONE Original
Notes: Metal, 1 Loose Base, 1 Slight Rust

Gm Test Results: 45 & 46

Minimum Good Value: 25
NOS Test Value: 41
Life Calculation: 100+% (where 65% = fail)

Tests as NOS?: Yes
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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