is there a way to take out the body pot and set the resistance that goes to it at around 12 o clock (whatever value that ends up being) and then adding a tone pot? and eventually maybe adding a clipping section for the LEDs and the appropriate diodes
I'd probably do it on a daughterboard because altering the layout to add resistors will make it over 21 columns and so make it unsuitable for a 1590B. On a small daughterboard you could include the two resistors, or even better a couple of trimmers so you still have total control but internal. Then you could also add the different clipping options you want. For a tone control you could just tack a SWTC at the end, in between the Volume 3 wire and the volume pot. Like these
hmm... interesting thought. here's what i was thinking:
omitting body pot A. Move the far left 1uf cap to the left and put a 10k resister from that rail to ground. (standing a little bit, ah well) (was also going to socket that resister to see what i'd like best)
For the tone control... I was going to swap the 47n cap and 470r resistor(that'll be standing a bit). (47n cap -> 470R -> ground) Connect lug 1 of a 20k lin pot to pin 5, lug 2 to the 47n cap, and lug 3 to pin 6... forming a classic TS tone control -- For the board: Take the wire labeled "Body B 1 & 3" to Body B 2, then run wires from the strips going to pins 5 & 6 to Body B 1 and Body B 3, respectively.
As far as clipping, in my head, i was going to take wires coming out of the positive sides where the LEDs would be, to the center poles of a dpdt. then two green LEDs on one side, and 2 other diodes on the other.