RCA USA 6BL7GTA 2 Black T Plate O Get TALL Vacuum Tube 75/120%

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SKU:
TE5379
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Description

Tube Type / Number: 6BL7GTA
Actual Brand*: RCA
Printed Brand: RCA
Quantity of Tubes: Single
Plate Construction: 2 Black T
Getter Construction: Top O
Country of Manufacture: USA
Visible Date Codes: LC
Lettering Condition: 100 Percent
Year Made:
Number of Mica Spacers: 2
Mica Shape: Saw
Smoked Glass? Clear
Engraved Base? No
Boxes Included? 1 Box - NOT Original
Notes: Tall Bottle, Fat Base

Gm Test Results: 30/48

Minimum Good Value: 25/25
NOS Test Value: 40/40
Life Calculation: 75/120% (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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Additional Information

Item Type:
Vacuum Tubes
Production Era:
Vintage & NOS
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