Welcome to the home of Home Made Amps
A range of valve amps made specifically for guitar amps
Most amps have Hi an Lo inputs. The Hi input has the full signal from the guitar whilw the Lo input reduces the the guitar input a certain amount.
If you are using pedals with the amp it is recommended the pedal lugs into th Lo input although it may be fine with the Hi input.
Most amps have line out jack on the back panel. This is fed direct from the output transformer. and can be used to feed mixers et.