BRIMAR F6067T - Very rare 1950'S MINT NOS NIB. Large Halo Getter STC Footscray Prod. ENGLAND. Mil Black Plate Prem. Grade Long Life ECC82/CV4003/12AU7/13D5 (Plug&Play Ready to Use) exchanges or tube rolling at

exchanges or tube rolling at our expense as it says in the Terms and Conditions on the web site

BEL ECC83 tubes have very clean sound

CV4001 premium grade version of the Black Plate CV4005/6X4WA/6063 is one of the best from Genalex in the 6X4 types

these are probably amongst the very best EF86/EF806S/6267/CV2901/CV4085/M8195 tube made by Mullard

BRIMAR F6067T - Very rare 1950'S MINT NOS NIB. Large Halo Getter STC Footscray Prod. ENGLAND. Mil Black Plate Prem. Grade Long Life ECC82/CV4003/12AU7/13D5 (Plug&Play Ready to Use) exchanges or tube rolling atOne of the rarest 1950s Brimar Special Types ever produced. F6067T Flying Lead tube is a Premium Grade, High Reliability Long Life version of CV4003 ECC82 12AU7 CV4034 valves and has a slightly higher gain than the 12AU7 20 vs 17. This 12AU7 variant has black plates with a single connected joint, welded tabs to support plates, copper rods, large halo getter and the Brimar "Trustworthy" valve Yellow triangle with a T logo. They test perfect and only