NOS Tung-Sol USA 5Z3 2 Black Plate Engraved Base ST HANGING FILAMENT Vacuum Tube

Tung-Sol $49.95

Tube Type / Number: 5Z3
Actual Brand*: Tung-Sol
Printed Brand: Tung-Sol
Quantity of Tubes: Single
Plate Construction: 2 Black Ribbed
Getter Construction: Bottom D Foil
Country of Manufacture: USA
Visible Date Codes:
Lettering Condition: 100 Percent
Year Made:
Number of Mica Spacers: 2
Mica Shape: Circle
Smoked Glass? Clear
Engraved Base? Yes
Boxes Included? 1 Box - NOT Original
Notes: ST, Hanging Filament

Gm Test Results: 50/48

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.

Read more
Current stock 0
Add to wishlist
Sold out

Description

Tube Type / Number: 5Z3
Actual Brand*: Tung-Sol
Printed Brand: Tung-Sol
Quantity of Tubes: Single
Plate Construction: 2 Black Ribbed
Getter Construction: Bottom D Foil
Country of Manufacture: USA
Visible Date Codes:
Lettering Condition: 100 Percent
Year Made:
Number of Mica Spacers: 2
Mica Shape: Circle
Smoked Glass? Clear
Engraved Base? Yes
Boxes Included? 1 Box - NOT Original
Notes: ST, Hanging Filament

Gm Test Results: 50/48

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.

Reviews (0)

Be the first to write a review

Additional info

SKU: TE3912
Availability: Ships in 1 business day or less.
Shipping: Calculated at Checkout