Recent content by owlexifry

appears to be https://tagboardeffects.blogspot.com/2013/07/mindbender-fuzz-compact-layout.html i have previously followed the mindbender schematic when breadboarding... but that 2K fuzz / attack pot value seems kinda dumb to me, so I just went with a 1K pot. (doubt this will change much, but...

probably. it's just a buffer. i actually used/tried a J201, and a 2N5089 in my breadboard build, and both worked fine.

absolutely have. just as well they're only 8 pin. [16 pin is pure masochism when your solder sucker is a POS] yep. @kirt1974 - use flux. - have a good solder sucker. - expect it to take a long time. if all else fails, and you're able/prepared to sacrifice the ICs, you could just snip them...

the 4n7 cap goes here:

heck yeah. build looks great. definitely one of the better 1 knob fuzzes. this one. should easy fit in 1590A (i'd swap that 1N4001 for 1N5817 though)

so... do you mean solid state/tube rec switch? ceriatone has some examples of this: (also has a fixed bias / cathode bias switch) https://ceriatone.com/wp-content/uploads/2025/02/5F6A-All-Access-20-Jan-2025.pdf

i was wearing pants! it is winter over here atm - good ol robe does the trick when it’s 15’C inside the house (what is central heating?)

doesn’t have enough gain/drive for me without a boost. and i find if i dial the gain real high it gets a bit flubby/broken, so usually a boost sorts that out. tried SD-1, 808, TS9, but ST-9 worked the best for me, although i probably should’ve tried an MT-2 boost but i was running out of...

VH-140C hype got me. of course I had to check it out. could’ve (and probably should’ve) just breadboarded it, but the whole +/-15VDC thing and buying a DC-DC converter to do that properly, may as well build this well laid out PCB from AionFX. obscure parts meant this was gonna require a mouser...

im assuming the values above are collector voltages? note: it's usually handy to know what the idle voltage is at each pin. e.g. Q1c, Q1b, Q1e (where c = collector, b = base, e = emitter)

ah yep. GT404 will be BCE pinout.

you said voltages are all good, but post them here anyway. be sure to check the pinout on those GT402s. - i'm pretty sure they might be BCE (as opposed to the usual CBE) also, I just had a look - GT402 are apparently PNP. https://stompboxparts.com/transistors/gt402-pnp-germanium-transistor/...

thanks! this one would have been tuned to drop C. just with 10-52 strings. do it 🤟🏻🤟🏻 it’s an awesome drive. i don’t think so. films caps are 100v and most of the ecaps would have been 35V minimum. if not 50V. i can’t remember exactly. running it with a 12V supply over a normal 9V just...