Im new to the building of tube amps and Iv repaired two Epi Jr. heads and a silvertone 1484 twin 12. Iv also built a Fender 5e3 circuit and It sounds great. Im about to try some other guitar amp designs in the very low watt size. Would anyone know where I could find half watt and quarter watt power tranys as well as sound output tranys. I would also like to add, does anyone have a good parts guy that I could email? Thanks Greg