Description
Tube Type / Number: 5U4G
Actual Brand*: Teltron
Printed Brand: Teltron
Quantity of Tubes: Single
Plate Construction: Black Wrinkled
Getter Construction: Bottom []
Country of Manufacture: USA
Visible Date Codes:
Lettering Condition: 75 Percent
Year Made:
Number of Mica Spacers: 1Round
Glass Coating: Clear
Engraved Base? No
Boxes Included? 1 Box - NOT Original
Notes: Rattles, Missing Guide Key, Cracked Base
Gm Test Results: 47/53
Minimum Good Value: 40/40
NOS Test Value: 50/50
Life Calculation: Test=47/53% (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.