Date Matched Pair Sylvania USA 8BQ5 [XL84] Grey Plate Top O Get Vacuum Tubes 90%

Sylvania $18.71

Tube Type / Number: 8BQ5 [XL84]
Actual Brand*: Sylvania
Printed Brand: Sylvania
Quantity of Tubes: Date Matched Pair
Plate Construction: Grey Ribbed
Getter Construction: Top O
Country of Manufacture: USA
Visible Date Codes: NR YAC
Lettering Condition: 100 Percent
Year Made:
Number of Mica Spacers: 2Saw
Glass Coating: Clear
Engraved Base? No
Boxes Included? Multiple Boxes - SOME Original, Some Generic
Notes:

Gm Test Results: 60 & 74

Minimum Good Value: 45
NOS Test Value: 70
Life Calculation: 86% & 105% (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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Description

Tube Type / Number: 8BQ5 [XL84]
Actual Brand*: Sylvania
Printed Brand: Sylvania
Quantity of Tubes: Date Matched Pair
Plate Construction: Grey Ribbed
Getter Construction: Top O
Country of Manufacture: USA
Visible Date Codes: NR YAC
Lettering Condition: 100 Percent
Year Made:
Number of Mica Spacers: 2Saw
Glass Coating: Clear
Engraved Base? No
Boxes Included? Multiple Boxes - SOME Original, Some Generic
Notes:

Gm Test Results: 60 & 74

Minimum Good Value: 45
NOS Test Value: 70
Life Calculation: 86% & 105%
(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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Additional info

SKU: PE280
Availability: Ships in 1 business day or less.
Shipping: Calculated at Checkout