That one looks - and probably sounds - absolutely brutal.
This here is the second Kurt Ballou business card PCB I had. Made the first one a year and a half ago, this one has the response mod though. I like how it reduces high end/noise and also tightens the bass as it's turned down, while the loudness (and gain) knob can bring back some edge. The big switch is a diode selector of course; Ge/BAT46--none--red LED. The first one has the most distinct flavour, the latter two are very similar unless the gain is cranked.
Some hiccups with this build.. SPST footswitch actuator broke in some weird way and shot out of the threaded tube like a Lego cannon, never seen such a thing. Made sure to jiggle and test the next one before installing, from now on I will do that with everything. Even the initial dual C1k pot was bad and had to be replaced. But I then got the chance to switch the wiring, so lugs 1-2 go through the 47r (R6) to the electrolytic (C5), and 3 goes to the other end. Sweep goes the right way now, and most importantly works.
Otherwise this turned into a kind of "deluxe" build with relay bypass (to be honest a regular 3PDT wouldn't fit), fancy caps and the relatively expensive Thomson op-amps. I ordered them specifically for this as I liked LM1458s in the previous one, although when auditioning chips back then the differences were subtle. But worth experimenting with. The paintjob is a little more layered but still based on the one I did before, logo-wise. First time using stamps for the knob designations, selected to correspond with Roman numerals (volume, intensity, loudness, xain).
