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BRIMAR CV4033 - MINT NOS NIB 1960 Mil Black Plate Prem. Grade Long Life ECC81/CV4024/12AT7 Halo Getter STC Prod ENGLAND Factory Tested (Plug&Play Ready to Use) - M. Pairs/Quads/Singles

Sale price Price $60.00

We have 93 in stock.
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Brand New MINT NOS NIB Rare 1960 BRIMAR CV4033 Black Plate with Copper Grid Post Military tubes. Factory tested and serialized*.  CV4033 Flying Lead is a Premium Grade, High Reliability Long Life version of CV4024/ECC81/12AT7 valves (Click Here). CV4033 premium grade version of the 1960s Black Plate CV4024/6060 is one of the best from Brimar in the ECC81 types. STC Rochester Plant Date Codes. Made in England. 

*each tube came with 3 factory stickers (click Larger Photo). A hand written individual serial number on top, and a printed sticker with numbers R811451 PM25525-1 on the side. Another hand written serial number on the side and text PM25525-1. Another sticker with text PM25525-1 is attached on the back flap of the tube boxes. NOTE: Top circular sticker is missing on a few tubes - old adhesive is very flaky and these must have come off at some time in last 50+ years.

Tubes were factory tested and serialized for some qualification (R811451 PM25525-1), except we don't have specific details of the qualification. 

Single Tube = $60. Select 2 for a Matched Pair or 4 for a Matched Quad. Even odd number of tubes will be matched.