NOS GE USA 6L6GB Black Plate 2 Side [] Get Vacuum Tube 100+%

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Tube Type / Number: 6L6GB
Actual Brand*: GE
Printed Brand: Hewlett Packard
Quantity of Tubes: Single
Plate Construction: Black
Getter Construction: 2 Side []
Country of Manufacture: USA
Visible Date Codes: 58-35/188-21
Lettering Condition: 90 Percent
Year Made:
Number of Mica Spacers: 2
Mica Shape: Sawblade Round
Smoked Glass? Clear
Engraved Base? No
Boxes Included? 1 Box - NOT Original
Notes: Getter Flash is Colored or Whiting Indicating Many Hours Of Use - Tube Tests Good & Should Work Great

Gm Test Results: 6400

Minimum Good Value: 3835
NOS Test Value: 5900
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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