Friday, September 30, 2016
VooDoo Lab Superfuzz
It's Fuzz Friday once again, so here's the VooDoo Lab Superfuzz. Despite the name, it's not based on classic Univox fuzz circuit with the same name. Rather, it's a highly modified Jordan Bosstone with an added EQ section. One interesting thing about this one is the fact that Q2 (PNP) has the emitter going to ground, where every other version of the Bosstone has that transistor's collector going to ground. Maybe VooDoo Lab found some extra mojo by doing it that way? Schematic can be found on FSB. I've laid it out for board mounted pots and it will fit nicely in a 1590B.
Probably been asked and answered but what PCB software do you use?
ReplyDeleteHe is using DIYLC
DeleteThanks.
DeleteHello storyboardist. I really love your site and making effect pedals using your layout. Can I ask for the layout of Ehx Soul Food OD?
ReplyDeleteJust build one of the Klon Centaur layouts. The Soul Food is just a Klone. There are some notes on FSB about the differences, but they're minimal.
DeleteThank you for the reply. If so, does it mean the pot for Drive is also dual-gang? Can it be replaced? Coz my main problem in building klon centaur is that pot value.
DeleteThanks again for your reply bro.
Greeting from Indonesia
Yes, the Drive pot is a dual-gang. I have heard of people just using 2 separate 100k pots instead of the dual-gang though. Give you more control, or so I've read.
DeleteI recommend separate potentiometers for setting the sound more opportunities. Thank you for your effektslayuts layouts, soldered more than 20 pedals !!!
DeleteOkay bro, I'll give it a shot using two 100k's
DeleteThanks for the reply
hi, can someone tell me if those rounded caps are electrolityc?16v?
ReplyDeleteYes those are electros, though I would suggest using ones rated at 35v or 50v
DeleteIs there any problem remplacement diode 4004 for diode 4007?
ReplyDeleteThat should be fine.
Deleteit is not verified yet?? mine does not work
ReplyDeleteI'm having problems here too...
ReplyDeleteNow it works! Realy want to thank you Mr FXLayouts! Leaving few tips for those who want to build this brutal marvel.
ReplyDelete-The grounding fill of the pcb is correct, but in practical home standards it became tricky, becouse it's super easy to make bridges when soldering. A bit of flux helps a lot.
- The lenght of the wires of the potentiometers are critical, to me it generated at ~ 500Hz annoying frequency, that only went out when I change the wires for shielded stereo ones. And still, the noise can apears!
- In my country (Brazil-Curitiba) I cant find the exact part numbers to build the exact project. But I tested some commun components here, and the results were spectacular! Here it goes:
-> Diodes: 1n4148
-> Transistors: Q1 = npn BC549B (hfe ~ 350) Q2 = pnp BC328
-> Low pass capacitor: that goes between the two 560k = 3n3F
-> Feedback resistors: replaced each 560k for 470k
-> Input resitor: replaced the 2k for 1k5
-> Vref Voltage Dividers: replaced the two 100k for 56k (IC's pin 3 and 6)
-> IC = TL072
-> Volume Potenciometer 100k Log
-> Connect the chassis to ground (negative from supply)
I made the board twice, the first time I was too impatient, and my board didnt do anything but whistling or not sounding. Lot of problems with the glossy after doing the thermal transfer, and many white hairs trying to fix the bridges ...
The second time, after breadbording the schematics, and verify that it realy works! I made the thermal transfer and the secret was put the hot board direct in the freezer, 2min later the toner was in the copper and the glossy in the paper. Success!
So, one by one, soldered each component with flux liquid, super carefully, installing all in to a 1590B Hammond.
All in place, its time to test this machine! And after a bit of 500Hz when potenciometer at 9am or less, I moved the internal wires a bit, and now sounds like a pro!
Super worthy project! Allways recomended!
It work!!! 😁
ReplyDeleteWorks fine, but mine seems to have less gain than heard in the demo. How could be raised the gain?
ReplyDelete