Gold Supporting Member
With the help of a couple of visits to Todd Shock (Wakarusa) and the application of my ham radio homebrew experience, I've been continuing the tune-up/mod of my '66 Super Reverb (player condition, repro cab, hodgepodge speakers, etc) that Todd started about 2 months ago. After getting rid of the snap crackle and pop with new plate load resistors, I've made a few reversible mods to my liking and it's been sounding awesome...I've noticed that the amp has has a high frequency hiss, not a hum, and that hiss increases when flipping the bright switch on (vibrato channel)...I'm definitely going to test all the preamp tubes when I get home, but since this was on my mind this morning at work, I figured I'd post it here. FWIW, I've split the V1/V2 shared cathode and lifted the normal channel from the circuit at the PI. I replaced the power tube sockets recently as well. I can post a complete list of things I've changed if that would help.