MULLARD CV4033 - Very rare 1958 - Mil wrinkle glass, Halo GT. - Whyteleafe "A" Production Prem. Grade Long Life ECC81:CV4024:12AT7 Factory Tested (Plug&Play Ready to Use) depth and height

depth and height

Bottom part is NOS GEC phenolic plug

Early 1956 BRIMAR CV4033 with Square Getters

CV4035 premium grade version of the late 1950s-early 1960s Box Plate CV492 aka CV4004 is one of the best from Brimar in the ECC83 types (click Larger Photo)

MULLARD CV4033 - Very rare 1958 - Mil wrinkle glass, Halo GT. - Whyteleafe "A" Production Prem. Grade Long Life ECC81:CV4024:12AT7 Factory Tested (Plug&Play Ready to Use) depth and heightNOTE: After spending $$$$ on tooling and various prototypes, we have fitted Special Grade Flying Leads tubes with Custom Thermo setting Bases developed in house. It is a multi step, labor intensive process. Each lead is straightened and cleaned to ensure perfect fusion with the base pins in the silver soldering bath. Process is painstakingly slow, so we will be adding a few tubes at a time to the inventory. Tubes are Plug & Play, Ready to Use. Brand