rrs
Well-known member
OK so installed new IRF 840 (Q4) still no go. Voltage fine with no load (253V close to 245V),
attach 1 channel board and down the voltage goes. Without the tubes all is fine but a little high (260V instead of 245V)
I have tried several IRF840/820 from different suppliers,
Any further ideas where to look would be much appreciated.
attach 1 channel board and down the voltage goes. Without the tubes all is fine but a little high (260V instead of 245V)
I have tried several IRF840/820 from different suppliers,
Any further ideas where to look would be much appreciated.