Yeah, it is a noisy beast for sure. Unusable with my test rig with long wires everywhere. I really dug the fuzz itself but the noise kind of ruibed it so I was about to not boxing it. But a friend suggested that shorter wires, shielding from the enclosre and lower gain transistor should help. Well, it did!
It is still a noisy fuzz (some hiss...) when everything is dimed but it is not near oscillation.
I used BC113 transistors around Hfe 300. And germanium diodes for some mojo.
Yeah, I built one some time ago. It oscillates when cranked. I think I must’ve made mine from the tagboardeffects layout. Seems to be what this circuit does.
With respect to the oscillation I spent a lot more on trying to solve this trying different transistors, with little success. What final solved it completely was putting it after a buffer. To my tastes bc109c transistors sounded best but there's not much in it. Basically don't waste any time trying to solve the oscillation until you've tried it after a buffered pedal. There's so many useful tones in this thing just building it and try it.
Hi, where to connect the ground?
ReplyDeleteConnect it to bottom row far to the left. Updated layout with ground connection.
DeleteThank you man
DeleteI have one more question. I didn't find the 100KC pot. which is better to use 100KА or 100KB?
Delete100kB will work better than 100kA. But the sweep will still be uneven and drastic, the action happens at the very end of the rotaion of the pot.
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ReplyDeleteI put one of these together using 2n5089s around 290hfe, but it was seriously noisy.
ReplyDeleteYeah, it is a noisy beast for sure. Unusable with my test rig with long wires everywhere. I really dug the fuzz itself but the noise kind of ruibed it so I was about to not boxing it.
DeleteBut a friend suggested that shorter wires, shielding from the enclosre and lower gain transistor should help. Well, it did!
It is still a noisy fuzz (some hiss...) when everything is dimed but it is not near oscillation.
I used BC113 transistors around Hfe 300. And germanium diodes for some mojo.
Nice...I read it was potentially noisy but took a gamble
DeleteYeah, I built one some time ago. It oscillates when cranked. I think I must’ve made mine from the tagboardeffects layout. Seems to be what this circuit does.
ReplyDeleteAside from 2n5089 what trannies are favorable for carcosa?
ReplyDeleteTnx.
Best common replacements for 5089s are BC550 and BC549, 2n5088, and MPSA18.
DeleteWith respect to the oscillation I spent a lot more on trying to solve this trying different transistors, with little success. What final solved it completely was putting it after a buffer. To my tastes bc109c transistors sounded best but there's not much in it. Basically don't waste any time trying to solve the oscillation until you've tried it after a buffered pedal. There's so many useful tones in this thing just building it and try it.
ReplyDelete