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GE

NOS Matched Pair GE USA 12AT7 [ECC81] BLACK PLATE Top [] Get Vacuum Tubes 100+%

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SKU:
PH0693
UPC:
GE 12AT7
MPN:
GE 12AT7
Availability:
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$29.75

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Description

Tube Type / Number: 12AT7 [ECC81]
Actual Brand*: GE
Printed Brand: Admiral & Ken-Rad
Quantity of Tubes: Matched Pair
Plate Construction: Black Ribbed
Getter Construction: Top []
Country of Manufacture: USA
Visible Date Codes: 1-09 188-5 & 3-22 188-5
Lettering Condition: 25 Percent
Year Made:
Number of Mica Spacers: 2
Mica Shape: Saw
Smoked Glass? Clear
Engraved Base? No
Boxes Included? Multiple Boxes - NONE Original
Notes:

Gm Test Results: 3560/3500 & 3880/3540

Minimum Good Value: 2275/2275
NOS Test Value: 3500/3500
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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