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  • Matched Trio (3) Tung-Sol USA 50C5 [HL92] Black Plate Vacuum Tubes 90%

Matched Trio (3) Tung-Sol USA 50C5 [HL92] Black Plate Vacuum Tubes 90%

$28.46
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Product Description

Tube Type / Number: 50C5 [HL92]
Actual Brand*: Tung-Sol
Printed Brand: Tung-Sol
Quantity of Tubes: Matched Trio (3)
Plate Construction: Black Ribbed
Getter Construction: Top Fat D
Country of Manufacture: USA
Visible Date Codes: 322DMI & 322240 & 322333
Lettering Condition: 100 Percent
Year Made:
Number of Mica Spacers: 2Saw
Glass Coating: Clear
Engraved Base? No
Boxes Included? 1 Box - NOT Original
Notes: All American 5

Gm Test Results: 58 & 64 & 68

Minimum Good Value: 45
NOS Test Value: 70
Life Calculation: 82% & 91% & 97% (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.

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