NOTE: After spending $$$$ on tooling and various prototypes, we have fitted Special Grade Flying Leads tubes with Custom Bakelite 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 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, fitted with our Custom made Bakelite Bases (INTL Patent Application in Process).
Single Tubes Brand New MINT NOS Rare 1960s BRIMAR CV4035 Box Plate Military tubes with Cosmetic Defects or Imperfect Test Scores. CV4035 Flying Lead is a Premium Grade, High Reliability Long Life version of ECC83/CV492/CV4004/6057/12AX7 valves (
Click Here). Made in England. Packed in generic white boxes from bulk.
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).
Tested and matched on Top of the Line Calibrated
Hickok 580 Lab Grade Tester recently calibrated by late Chris Haedt.
Specify which tube you want in the comments box during checkout process (shown from left):
Tube 1: 1967 CV4035. Imperfect looking getter flash. Mostly a cosmetic defect. Tube tests and works fine. 2025-2025 mmhos.SOLD
Tube 2: 1969 CV4035. Imperfect looking getter flash. Mostly a cosmetic defect. Tube tests and works fine. 1900-2000 mmhos.
Tube 3: 1960 CV4035 with etched STC Rochester Plant Date Codes. Imperfect test scores: 2325-1800 mmhos.
Tube 4: 1969 CV4035 with etched STC Rochester Plant Date Codes. Low test scores: 1775-1875 mmhos.STC Date Codes are faint and painted on these mid 1960s Brimars, versus etched codes in early 1960s Brimar flying lead type. Not quite visible on tubes 1, 2 and 4.
Single Tube = $65.