I've only ever tinkered with transistor amps, all I know about valve amps is that the output is usually only a few watts, but the sound is supposed to be very smooth.
Good luck with it, they should be able to help you on that site, they've helped me in the past
Hi, I may be able to help, I have played with valves for a long time but your original post is rather vague.
Do you have any info, the amp manufacutures name, model, or even the valve type used?