Description
6FA7 2 CBS 6463 Vacuum Tubes 10,000 Hour Audio Twin Triodes Heathkit TT-1 tests read 1800/2000 and 2000/1800. A reading of 1100/1100 is the minimum recommended. These are branded CBS but I believe they were made by General Electric. They will ship with pin protectors. The 6463 (aka CC86E) is a high reliability medium-mu twin triode and is rated for 10,000 hours of service. Your purchase will be carefully packed and shipped quickly via the USPS. Shipping discount when purchasing other items using the same ebay buyer ID.