Pulse Tubes Store

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 $68.00

We have 37 in stock.
Regular price Unit price  per 

Shipping calculated at checkout.
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 price. Select 2 for a Matched Pair or 4 for a Matched Quad. Even odd number of tubes will be matched.