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Raytheon

Raytheon USA 5U4GB Black Ribbed Plate 2 Top [] Get Vacuum Tube Test= 48/45

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SKU:
TX2878
UPC:
5U4GB
MPN:
5U4GB
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Now: $7.46
Was: $9.75

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Description

Tube Type / Number: 5U4GB
Actual Brand*: Raytheon
Printed Brand: Raytheon
Quantity of Tubes: Single
Plate Construction: Black Ribbed
Getter Construction: 2 Top []
Country of Manufacture: USA
Visible Date Codes: 280 5739
Lettering Condition: 90 Percent
Year Made:
Mica Spacers: 2
Smoked Glass? No
Engraved Base? No
Boxes Included? 1 Box - Not Original
Notes: Tube Misprinted with 5U4G

Gm Test Results: 48/45

Minimum Good Value: 40/40
NOS Test Value: 50/50


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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