CONTEST Happy New Years Limited Parts Contest

CONTEST
I didn't see the contest and postage / customs rules out getting any prizes, but I am happy to enter for a participation trophy..

Here's something I worked on yesterday under extreme jet-lag. The Mikey is an attempt to improve the favourite boost of a friend of mine. I haven't breadboarded it yet, but why not.. I took the Modus Operandi and retrofitted the Brophyte Boost into it.

Far from original, since the Modus is just an AMZ Mosfet Booster with a BJT output buffer and a couple of LPFs tacked on the end..

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Oh, and there's a PCB layout:

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While I'm thinking of a non-fuzz pedal to submit, here's a rendition of a Harmonic Percolator that's been heavily tweaked and given the Bazz Fuzz treatment. The two clipping switches really give a wide range of tones - from usable high-gain distortion to squonks and squelches. Just a volume knob for this guy. Including the switches and stuff it's made of 27 parts, if I counted correctly. That's a very low-gain Russian GE transistor at Q. I haven't tried any others there, could probably be worthwhile to experiment.

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t1redhands said:
While I'm thinking of a non-fuzz pedal to submit, here's a rendition of a Harmonic Percolator that's been heavily tweaked and given the Bazz Fuzz treatment. The two clipping switches really give a wide range of tones - from usable high-gain distortion to squonks and squelches. Just a volume knob for this guy. Including the switches and stuff it's made of 27 parts, if I counted correctly. That's a very low-gain Russian GE transistor at Q. I haven't tried any others there, could probably be worthwhile to experiment.

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Click to expand...
So rule #4 states no more than one toggle switch.

It looks like you have 2 DPDT switches in use here….you would need limit your schem to one in order for it to be counted as an entry..
 
steviejr92 said:
So rule #4 states no more than one toggle switch.

It looks like you have 2 DPDT switches in use here….you would need limit your schem to one in order for it to be counted as an entry..
Click to expand...
Oops - missed that rule! Hmm... it could probably keep its wide range of possible tones with a single MOSFET as the clipper.
 
Being a judge sucks sometimes. Screw it, I'm playing!!!

Here's a VERY stripped down Timmy/Zendrive/OD derivative. Opamp powered with 9V and Ground. It works, sounds like a decent OD in my book, and it's labelled properly :cool: . I've got a whole other opamp using a 4558. Maybe I should use the other one as an output buffer? I guess it wouldn't hurt...

Look, Chuck! I actually put knobs on my breadboard pots this time. Don't I get bonus points from you?!?!

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I had an idea this morning. "What would it sound like if it put together..."

All values here are pretty close to stock but there are some tweaks. This is a nice fuzz that became a happy accident when putting some circuit legos together.

SHO-->BMP clipping stage (asymmetrical clipping)-->1/2 of a passive James tonestack-->Volume

Was originally going for a full James tonestack, but the Bass control wasn't working so I scrapped it. I don't think it needs it. When HAIR was cranked CW there was waaaaay too much signal going in, so I tamed it with R5.

I call it "SHO' YO' MUFF"

I should probably record a demo. I really like this one. Sonically, I'd call it in the extended muff family, both because of the clipping and the tone stack. The more I play around with tone stacks, the more I don't like the sound of a BMP simply due to the mid scoop. Hence, the James control. Goes from a heavy fuzz down to pretty clean when adjusting the HAIR control and volume knob on the guitar.

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So, another happy accident. I tried the SHO Yo Muff on a lower tuned guitar and didn't quite care for it. It was a little too boomy and not enough fuzz coming through. That's the way the clipping is tuned in this circuit.

Then I had to ask "How does this circuit sound on bass?"

Holy. Crap.

This sounds absolutely killer on bass! Tons of low end goes through with enough clipping to be in the OD territory!
 
Revised and making noise! I had to replace the low-gain GT403 Russian transistor - I'm not sure how I got these to work before. They're very unpredictable even if they test well. Instead I'm using the lone OC75 I have in my stash and yeah, it sounds great. Apologies for the cellphone sound and aimless playing.


And the updated shematic:

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