Raytheon USA JAN-CRP-3B21W Gray Plate Bottom [] Foil Get Vacuum Tube

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Tube Type / Number: JAN-CRP-3B21W
Actual Brand*: Raytheon
Printed Brand: Raytheon
Quantity of Tubes: Single
Plate Construction: Gray
Getter Construction: Bottom [] Foil
Country of Manufacture: USA
Visible Date Codes: 246 BD1890E
Lettering Condition: 75 Percent
Year Made:
Mica Spacers:
Smoked Glass? No
Engraved Base? No
Boxes Included? 1 Box - Not Original
Notes: Brown Base

Gm Test Results: Untested NOS - Appears to be NOS/NIB - returns will be accepted if DOA.

Minimum Good Value: N/A
NOS Test Value: N/A
Life Calculation: N/A% (where 65% = fail)

Tests as NOS?:
True NOS?*:

** 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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