From the captain:
Fuzz Sound MKIV (used to be badged as the MKIII) Basically a pimped out version of the Tone Bender MKIII and MKIV but with more tonal scope, more muscle and packing space age features.
First up, a few quick words on the differences between a Tone Bender MKIII and a MKIV. They do both use the same circuit blue print if you will but there are subtle and noticeable differences to each pedal in the tone department. Without over complicating matters, as I do what to get to the point, the Sola Sound made MKIII and the MKIV basically sound of their time. The early MKIII's sound fuzzy and choppy, later MKIV's sound smooth and distorted. Then there's a blurry line in the middle. Basically the biasing evolved to the point that the pedal became more overdriven than fuzzy. Ya know, I guess, to suit the needs of Musicnauts of the day.
The FS-75 is the blurry line in the middle and some. It's not a direct replica of either but the flavour I have gone for is an all out balls to the wall, big hair, big boobs, fat cars, fast food, dirty denim, dirty hippies, 8-track stereo cranking, 3-D glasses rocking fuzz tone. To quote, its: "1970 rollin' in sight"
Btw, yes it does bass
Fuzzsound FS-75 Jr
I think the 2.2M resistor in the DAM FS-75 and DAM Fuzzsound needs to be on the other side of the 100n input cap.
ReplyDeleteIt's an easy fix. Just move the lower lead of the 2.2M resistor up one row.
DeleteThis comment has been removed by the author.
DeleteWhat is that resistor doing, it misses in two of the other 4 layouts?
DeleteOk, it‘s a pulldown resistor. Nevermind.
Deleteis this like a Park Fuzz Sound?
ReplyDeleteNo. But I did a layout for the park Fuzz awhile ago and it's in the contributions section of the forum.
Deletecorrected an error in each layout and updated all of them.
ReplyDeleteThis comment has been removed by the author.
ReplyDeleteWhat do I do about this negative voltage?
ReplyDeleteYou can add the Negative Voltage Inverter daughterboard, found here:
Deletehttp://tagboardeffects.blogspot.com/2012/05/negative-voltage-inverter.html
What Transistors does this call for? I'm relatively new to building and I can't tell just by pnp GE.
ReplyDeleteAC128 or similar would be quite common for a circuit like this. Should be ok with all three at 80-100 hFE and similar leak rating for the set.
Delete+m
Black on Black sounds awesome. I used MP21As with low leakage and hFeof 59 and 61 for Q1 and 2 and an AC125 with .120 leakage and 133 hFe but I think I'm going to order a Tonebender set from Small Bear for this one. Great for Uncle Acid and Dead Meadow tones.
ReplyDeleteWhat version is the big blue on in the first video?
ReplyDeleteThanks so much for this layout and all the others. This site is such a terrific resource!
ReplyDeleteI tweaked my Black on Black to have the input cap on a switch. One side is the stock 100nf and the other in a 10nf. I figured I could get a little more cut like with the Greasebox. Sounds great. I wound up dropping in a set of transistors from Small Bear. This is easily my favorite fuzz.
ReplyDeleteBuilt the 75 Jr with salvaged Toshiba transistors. Hfe for q1 and q2 are around 50, and q3 is about 120.
ReplyDeleteSounds tremendous.
Both this and the Buzzaround circuit seem less finicky than MKI and MKII, so have at it
Hello, could I check which of the versions is closer to the MKIV description given (ie. smoother and more distorted)
DeleteBuilt the FS-75, which sounds great but there's a few DB of volume drop. Anything that can be done save for changing the transistors?
ReplyDeleteJust finished the FS-75. This pedal is incredible!
ReplyDeleteI used 3 2N404's, all at ~90 hfe.
I boxed it with the negative voltage inverter - no volume drops, hiss, or other reported issues.