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National Union

NOS National Union NU USA JAN-CNU-6SK7GT/VT-117A Gray Plate Vacuum Tube

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SKU:
TM6758
UPC:
National Union NU 6SK7
MPN:
National Union NU 6SK7
Availability:
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Shipping:
Calculated at Checkout
$8.75

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Description

Tube Type / Number: JAN-CNU-6SK7GT/VT-117A
Actual Brand*: National Union NU
Printed Brand: NU
Quantity of Tubes: Single
Plate Construction: 2 Gray Wrinkled
Getter Construction: Top []
Country of Manufacture: USA
Visible Date Codes: GC/SC545A
Lettering Condition: 90 Percent
Year Made:
Number of Mica Spacers: 1
Mica Shape: Sawblade
Smoked Glass? Clear
Engraved Base? No
Boxes Included? 1 Box - NOT Original
Notes: Metal Base

Gm Test Results: 82

Minimum Good Value: 48
NOS Test Value: 79
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.

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