Hi guys! I am new to this forum, i have done several project for audio, but more in hifi. I am a guitarist for about 14 years. I have found in a basement a old forgotten amp by an old tenant. I have identify the combo witch i remove the head. It seem to be a Gar Gillies amp. I have try it, it sound sooo good.... and soooo loud! too loud to be honnest... Anyway, the tube still work but they are in bad shape and of course, the pot make a lot of pop.

My question is: the electronic inside is old, is there part that have improved and would be a good idea to change, like cap? I will change the pots and tube, probably add a gain channel by building a "real mc tube" drive that could be switched. A new enclosure too... Your input are welcome, here is some pic of the beast: