RCA
NOS RCA Radiotron USA 5Z3 D Foil Get ST HANGING FILAMENT Vacuum Tube 100+%
- SKU:
- TE3928
- UPC:
- RCA Radiotron 5Z3
- MPN:
- RCA Radiotron 5Z3
- Availability:
- Ships in 1 business day or less.
- Shipping:
- Calculated at Checkout
Description
Tube Type / Number: 5Z3
Actual Brand*: RCA Radiotron
Printed Brand: RCA Radiotron
Quantity of Tubes: Single
Plate Construction: 2 Black Smooth
Getter Construction: Bottom D Foil
Country of Manufacture: USA
Visible Date Codes: Y4E
Lettering Condition: 100 Percent
Year Made:
Number of Mica Spacers: 2
Mica Shape: Circle
Smoked Glass? Clear
Engraved Base? No
Boxes Included? 1 Box - NOT Original
Notes: ST, Hanging Filament
Gm Test Results: 50/50
Minimum Good Value: 40/40
NOS Test Value: 50/50
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.