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) P-504Early feedback from our beta

P-504Early feedback from our beta customer:Regarding the CV3986/6021 (Mini-Mullards)

fitted with our Custom made thermosetting Bases

though not harsh as the Telefunken

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

Also we have potted this pencil thin tube in a High Elastance base making it even more immune to shock and vibrations

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) P-504Early feedback from our betaNOTE: 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