Mullard CV4086 - MINT NOS NIB 1961-62 Prem. Grade Long Life EF86 EF806S 6267 CV2901 CV4085 M8195 Solid Shield Wrinkle Glass Halo Mullard Mitcham Prod. Haltron LBL - Gt. Britain (Plug and Play Ready to Use) Plug pins are exact size

Plug pins are exact size of a typical NOS OCTAL tube for snug fit

CV4035 M8214 premium grade version of the 1960s Box Plate M8137/CV4004 is one of the best from Mullard in the ECC83 types

it has some of the most “lifelike” imaging I have heard

For example you can use this adapter to Plug in 12AX7/ECC83

Mullard CV4086 - MINT NOS NIB 1961-62 Prem. Grade Long Life EF86 EF806S 6267 CV2901 CV4085 M8195 Solid Shield Wrinkle Glass Halo Mullard Mitcham Prod. Haltron LBL - Gt. Britain (Plug and Play Ready to Use) Plug pins are exact sizeBrand New MINT NOS NIB Rare 1961 62 Mullard CV4086 Military tubes Haltron Label. CV4086 Flying Lead is Premium Grade, High Reliability Long Life version of EF86 EF806S 6267 CV2901 CV4085 M8195 valves. (Click Here to read about Flying Leads Valves). Mitcham Production, identical to these (click here) except these were relabeled and boxed by Haltron in 1986. Date codes on some early Mitcham Flying leads types were painted on and not etched v s tubes