BRIMAR CV4033 - Very Rare, Early 1956 - Mil Black Plate, 3-MICA Square GT. - STC Footscray Production Prem. Grade Long Life ECC81:CV4024:12AT7 Factory Tested (Plug&Play Ready to Use) these are probably amongst the

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

Due to very fragile condition of the original printed cardboard boxes - tubes may be shipped in white boxesSingle Tube price

though not harsh as the Telefunken

Tube pins are exact size of a typical NOS Philips tube for snug fit

BRIMAR CV4033 - Very Rare, Early 1956 - Mil Black Plate, 3-MICA Square GT. - STC Footscray Production Prem. Grade Long Life ECC81:CV4024:12AT7 Factory Tested (Plug&Play Ready to Use) these are probably amongst theNOTE: 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