Hello to all,
I have an ST70 that was built from a Dynakitparts kit with the BBCU bias kit upgrade. I can bias my Russian Mullard EL34 tubes correctly, but if I try to bias a set of Gold Lion KT66 tubes, the lowest I can get the bias is .63 volts. Is there a modification I can do so I can use these tubes?
I have an ST70 that was built from a Dynakitparts kit with the BBCU bias kit upgrade. I can bias my Russian Mullard EL34 tubes correctly, but if I try to bias a set of Gold Lion KT66 tubes, the lowest I can get the bias is .63 volts. Is there a modification I can do so I can use these tubes?