Valve Faults
Have you ever wondered why amplifier valves wear out or why they dont last as long as solid state stuff? Why do the big amp manufacturers give you three years warranty on the amp and 90 days on the guitar amp valves? Valves are very old technology. The popular 6L6 output valve came to market in 1937 and our little friend the 12AX7 ( ECC83) was first introduced by RCA way back in 1947. The