Minotaur sonic Terrors fuzz & burn PTP

comradehoser

Well-known member
I just cannot make a pretty p to p.

[edit: if I had to do it over again, I would build the two circuits separately, situate them/fold them to fit, and *then* put in the grounds and off-board wiring. This one has some funky connections with the switch. I was overly concerned with having enough space and laid down the grounds first, which ended up being both not economical, necessary, or aesthetic. But, as noted below....]

Welp, it works pretty well, though. I did some unnecessarily funky things from an excess of caution in following the schematic. Had to do some creative folding in the burn half as well, but overall, very fun, even if my fingers are a bit burned and my solder roll is shorter.

[edit: it's actually not as noisy as I thought it would be; a bit of a howl when both pedals are engaged and the burn is turned full CW. The "Heavy" setting has much less sustain than the "Heavier" setting and is much more fine-grained and chuggy, which is consistent with a bass cut. Heavier has a bit more that doomy throatiness. The Burn part is actually pretty satisfying. When both parts are engaged, Fuzz controls overall volume, Burn just kind of changes the flavor somewhat and makes it more ragged.]

Made it for my neighbor who I've been playing doom metal with since he was 14 or so. His fuzz and burn pedal broke, and he gave it away. [This one actually feels extremely solid.]

He is black, so I thought something other than Conan was appropriate.

I might wipe the text and do a better job [edit: going to redo lettering and illo with watercolor felts for a more psychedelic effect--the sharpie I grabbed had a way too big and soft tip].

[NEXT UP: Sorcerer Distortion! Looks to be a super easy linear build.]

IMG_20240522_010911817.jpg IMG_20240522_001605803.jpg IMG_20240522_210907158.jpg

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Hey folks, if you build this, use the golden fleece values [edit: provided by Guardians of the Analog] in This thread for the Electra half of the circuit. Top half as in the schematic below IMG_20250416_215934583.jpg
Included the dpdt wiring as well. This isn't the easiest schematic to follow.

The original is quite dull and flat sounding. Using the fleece values makes the circuit as a whole much more versatile and interesting while staying firmly planted in the land of loud, low, and slow.
 
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Almost a year ago, I made that big crow's nest of a pedal.

Last night, I finished my redo. Hey, look at the difference a couple of PTP builds makes--even though it still looks a bit rat's nesty. I basically implemented this as noted in my original build notes as two separate circuits. I most definitely could have stacked them inside a 125b, but I really like the 1590BBS format. Electra on the right left, duh, Meathead in the middle. Very recommended for a PTP build for beginner to intermediate. I still can't get my wiring to look @Erik S great; I did a lot of finger-bending/organic lines to greater or lesser aesthetic effect. Overall, I'm pretty happy with the PTP and it's 200% cleaner than my original take on the pedal.

Breadboarded this buddy to revise the transistors. I forgot to take pics with the assembled switch and pots in, but you get the idea. One thing I learned, from now on, I will log my changes. There was one change that made a pretty big difference in the tone and I can't remember what it was for the life of me. But, I'm very happy as is.

Basically, I implemented the Golden Fleece as the Electra distortion side (collapse), as detailed in the post above. This results in a nice, warm, low-mids focused fuzz that is doom-worthy as is. The meathead side (fusion) is much more aggressive and sizzly. Together, it's sustain city with great fuzz texture. The toggle takes the meathead from more abrasive sludge tones to deep doom country. As a whole, the pedal functions amazingly well together to offer a good variety of tones just in the variable selection of circuits, toggle, and levels. As noted above, the meathead controls (mass) overall volume, the electra controls (density) tone somewhat as well as sustain. I can get feedback! Would recommend, especially in this incarnation. It is really, really, a super fun doomy fuzz machine. Could not stop riffing last night during testing, after I figured out that I forgot to connect the power line to the Electra side, resulting in weak and intermittent signal. Imagine that. Fixed and it's rocking.

[edit: tested on baritone in drop A. With both circuits engaged, it's hello, literally the Conan tone. All elements sound pretty good on bass too, with the exception of Meathead/Heavier toggle combo--the bass overwhelms the circuit--but I've actually yet to test that properly with a bass amp, so I'll report back later.]

For the enclosure, I had a bunch of ideas, but I was reading about star formation for one of my grades, and it stuck with me--the pedal does sound MASSIVE. Did the drawing in pencil and with the original clearcoat, it looked GREAT. It got scratched up, and I tried to fix and respray, but used another clearcoat, and the result was distinctly more sucky. I need to invest in some matte clearcoat. I also did my writing too high so it sat under the knobs (d'oh! ALWAYS mock up, my peoples), had to restamp. The result originally looked pretty boss, now, it's alright. But, as you can gather, enclosure aesthetics ain't my main jam.

Next is: Animals Diamond Peak Chuck Dem Bones edition PTP
 
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Breadboarded this buddy to revise the transistors. I forgot to take pics with the assembled switch and pots in, but you get the idea. One thing I learned, from now on, I will log my changes. There was one change that made a pretty big difference in the tone and I can't remember what it was for the life of me. But, I'm very happy as is.

Basically, I implemented the Golden Fleece as the Electra distortion side (collapse), as detailed in the post above. This results in a nice, warm, low-mids focused fuzz that is doom-worthy as is. The meathead side (fusion) is much more aggressive and sizzly. Together, it's sustain city with great fuzz texture. The toggle takes the meathead from more abrasive sludge tones to deep doom country. As a whole, the pedal functions amazingly well together to offer a good variety of tones just in the variable selection of circuits, toggle, and levels. As noted above, the meathead controls (mass) overall volume, the electra controls (density) tone somewhat as well as sustain. I can get feedback! Would recommend, especially in this incarnation. It is really, really, a super fun doomy fuzz machine. Could not stop riffing last night during testing, after I figured out that I forgot to connect the power line to the Electra side, resulting in weak and intermittent signal. Imagine that. Fixed and it's rocking.
So, just so I understand, you pretty much just used the PPCB Copper Clad values for the burn section of your build? I want to build this one too (non PTP) and am thinking I can just use that board combined with a meathead stripboard and just add the input selector switch.
 
So, just so I understand, you pretty much just used the PPCB Copper Clad values for the burn section of your build? I want to build this one too (non PTP) and am thinking I can just use that board combined with a meathead stripboard and just add the input selector switch.
I used @Guardians of the analog 's "certified effing" values.

I think that should work splendidly, because that's exactly what it is. Just to note, the DPDT is because it's an input *and* output cap selector

edit: you could even split the DPDT into two SPDTs if it's easier--one for the input, one for the output, or do a common cap with two different addition values with an on-off-on switch, kind of like what is going on in the corroder switch.
 
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So, just so I understand, you pretty much just used the PPCB Copper Clad values for the burn section of your build? I want to build this one too (non PTP) and am thinking I can just use that board combined with a meathead stripboard and just add the input selector switch.
Wonder why to use a board? You’re able to put Electra together in few mins between potentiometer and footswitch. :p
 
Wonder why to use a board? You’re able to put Electra together in few mins between potentiometer and footswitch. :p
Well, it's probably quicker and makes it easier to situate and all, but yeah, you could stripboard it a la guardians of the analog or whatever (i.e. PTP!!!!)

I do wish he would clear up the different interpretations of his notations on 4.7nf vs. 47nf, though.
 
Wonder why to use a board? You’re able to put Electra together in few mins between potentiometer and footswitch. :p
This is true
Well, it's probably quicker and makes it easier to situate and all, but yeah, you could stripboard it a la guardians of the analog or whatever (i.e. PTP!!!!)

I do wish he would clear up the different interpretations of his notations on 4.7nf vs. 47nf, though.
I'm probably just going to do it all on stripboard ALA this layout https://dirtboxlayouts.blogspot.com/2020/08/minotaur-sonic-terrors-fuzz-burn.html with some value changes.

Either way, sorry to steal your thunder on this one @comradehoser

Nice job on the re-do. And thanks for the inspiration.
 
This is true

I'm probably just going to do it all on stripboard ALA this layout https://dirtboxlayouts.blogspot.com/2020/08/minotaur-sonic-terrors-fuzz-burn.html with some value changes.

Either way, sorry to steal your thunder on this one @comradehoser

Nice job on the re-do. And thanks for the inspiration.
All thunder stealing previously noted, approved, and encouraged, my guy Van Why, so no apologies necessary. I am not territorial about my posts, if anything, I welcome more people to chime in with build questions and whatnot. I'm a teacher, so I'm all about sharing knowledge and learnings.

Breadboarding before stripboarding might be the way to go to audition the changes and witness the (lameness) of the original unit's Electra section. And also it's fun to play with. Note that I think it's a bit more than values and a Ge diode--the transistor is different as well--and I think it makes a big difference.
 
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