mxsix wrote:
Which values did you change and what were they? My bass player friend wants one!
I would love to share, and I will post my layouts here below. I have been doing this DIY pedal thing for a few years, but I am still quite the noob when it comes to complex electronic theory. So I really love circuits like the Bazz Fuss which are low on the parts count, and help me understand exactly what is going on within the circuit. Then I build like 20 variants of this circuit on vero and learn a whole lot in the process. So I recommend this exercise for anyone that is not an electronics theory expert, but wants to get a basic understanding.
In this circuit, much of the tone shaping is in the input and out caps. there are literally hundreds of different schematics posted that have a similar layout, but different parts values.
If I look at the original run-off-groove / home-wrecker schematic, they have the input cap at 4.7u and output at .1u.
On the Onesie it appears to me that there is .1u for both input and output. The 47u is the power filtering cap I guess. Correct me if I am wrong. But I dont use a power filtering cap on my design.
On CultureJam's old website, he has a hundred year old eyelet layout for the Bazz Fuss that shows the output cap at .1u, but the input cap is changed to 2.2uf. I like this setup, and here is my vero layout for that...
The above layout uses the original tranny and diodes of the original design.
To get more fuzz and a bit smoother sound, I have changed the tranny to a homemade darlington pair using some high gain 2n5089s I have been using. Forget where i got them from, but I have not had great success with all of the 5089's... just some of them. I also bump the Input cap to 0.47u for a more bass friendly tone, change the diode to a 1n4001 for more gain, and add a switch to select between two output caps for guitar versus bass. Or just as a thick switch for guitar usage. I have the normal 2.2u on one side of the toggle, and a .01u on the other. I have some great results with this layout, and have enjoyed jamming with these pedals on guitar and bass for the last several years.
The above sounds great on the bass. The sag knob is optional, and probably not neccessary, but I love the sound of fuzz with the battery on the verge of dying. The changed components basically remove most of the glitchy chatter that occurs with the standard Bazz Fuss, so the sag knob allows me to dial some of that back in.
I hope this helps. enjoy.