ok, so here’s a preamp design that i’m working on at the moment. it’s meant to be an amplifier simulator for my Gretsch Baritone G5265. i was impressed with the AMZ Booster using a single transistor and used a ’59 Bassman simulator (which uses J201s) as a loose guide. i’m looking to use it as a pre so i can run the baritone through an SS amp without it sounding dinky. it’s pretty experimental still, and i’ll most likely add a tone stack after Q2.
since the schematic post, i wanted to point out some potential sources of change. Q3 should be marked as a 2N4401 and not a 2N3904. both will probably work, but i originally used a 2N4401 (thinking it was a 2N2222A). i also did try out a 2N2222A but didn’t really like it as much (more beefy and less definition). i’ve been experimenting with MPF102s in the Q3 position today which definitely have a more pronounced high-end sparkle which is probably better suited for guitar. i’m going to try it out in the Q1 and Q2 positions as well just to see.
also, D1 is a 1N914. to be honest, i don’t hear any tonal effect with or without it. i saw a similar connection in the AMZ Booster schematic, but i’m not sure of it’s function yet.