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  • Amperex Holland 6BL8/ECF80  McIntosh MR-67 65B Bugle Boy Vacuum Tube 89/155%

Amperex Holland 6BL8/ECF80 McIntosh MR-67 65B Bugle Boy Vacuum Tube 89/155%

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Product Description

Tube Type / Number: 6BL8/ECF80
Actual Brand*: Amperex
Printed Brand: Amperex
Quantity of Tubes: Single
Plate Construction: Grey
Getter Construction: Top O
Country of Manufacture: Holland
Visible Date Codes:
Lettering Condition: 25 Percent
Year Made:
Number of Mica Spacers: 2
Mica Shape: Saw
Smoked Glass? Clear
Engraved Base? No
Boxes Included? 1 Box - NOT Original
Notes: Buggle Boy, ** Please note, the reason these tubes tested high on one side is due to oscillation within the tube tester and does not indicate a problem.

Gm Test Results: 50/90

Minimum Good Value: 34/36
NOS Test Value: 56/58
Life Calculation: 89/155% (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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