BRIMAR CV4034 - MINT NOS NIB 1970 Mil Long Plate Prem. Grade Long Life ECC82/CV4003/12AU7/13D5 Halo Getter STC Prod. ENGLAND(Plug&Play Ready to Use) - M. Pairs/Quads/Singles The above are my impressions

The above are my impressions using the Monolith Liquid Platinum by Alex Cavalli

In our experience

A TLDR and review of the BEL ECC83/12AX7 coming soon as well

let’s start with

1970s production NOS NIB BEL ECC83/12AX7 Tubes

BRIMAR CV4034 - MINT NOS NIB 1970 Mil Long Plate Prem. Grade Long Life ECC82/CV4003/12AU7/13D5 Halo Getter STC Prod. ENGLAND(Plug&Play Ready to Use) - M. Pairs/Quads/Singles The above are my impressionsTubes are Plug & Play, Ready to Use, fitted with our Custom made thermosetting Bases. Brand New MINT NOS NIB Rare 1970 BRIMAR CV4034 Long Plate Military tubes. CV4034 Flying Lead is a Premium Grade, High Reliability Long Life version of CV4003 ECC82 12AU7 valves (Click Here). STC Rochester Plant Date Codes are faint and painted on instead of etching in some of the earlier Brimar flying lead type, and may not be visible on all tubes. Royal Naval Store