Univox - Superfuzz [schematic]
- ShortScaleMike
- Resistor Ronker
Information
haha, it's Mike, but glad you have it working anyway, always a satisfying feeling!
From looking at other Octave Fuzzes like the Foxx Tone Machine, I would suspect that it is the Q3 emitter path 10uF 470 junction you want to break to cut the Octave effect.
From looking at other Octave Fuzzes like the Foxx Tone Machine, I would suspect that it is the Q3 emitter path 10uF 470 junction you want to break to cut the Octave effect.
- Solidhex
- Resistor Ronker
Hmm
Wonder if sticking a pot in there and putting in some series resistance would let you blend in the octave. The usual 10k octave balancing trimpot does it a little...
--Brad
Wonder if sticking a pot in there and putting in some series resistance would let you blend in the octave. The usual 10k octave balancing trimpot does it a little...
--Brad
- salocin
- Resistor Ronker
Thanks for the layout Mike. Just got mine finished and it's great!
Here's how it came out:
Unfortunately it's for someone else so will be building another for myself straight away.
Here's how it came out:
Unfortunately it's for someone else so will be building another for myself straight away.
- ShortScaleMike
- Resistor Ronker
Information
Wicked, always great to see when people use the layout. That's a great looking pedal.
Finally got one of these together on the weekend.
Many thanks to ShortScaleMike for his layout and all who had input on it.
I can say that this build is a whole lot better to my ears than the Leeds Fuzz kit that i built. Both use 2SC828s but this has an unadulterated rawness that leaves the BYOC somewhat sterile in comparison.
How a fuzz should be in my opinion
Many thanks to ShortScaleMike for his layout and all who had input on it.
I can say that this build is a whole lot better to my ears than the Leeds Fuzz kit that i built. Both use 2SC828s but this has an unadulterated rawness that leaves the BYOC somewhat sterile in comparison.
How a fuzz should be in my opinion
- ShortScaleMike
- Resistor Ronker
Information
Nice to hear, good stuff!
- theblackman
- Resistor Ronker
this is a great sounding fuzz, i was bashing out some riffage through my octane 3 yesterday which is the same circuit AFAIK
- Nikifena
- Solder Soldier
I make this pedal maybe before more than 5 years.
Here is it:
It's good pedal, but right now I preffer to use a few schottky diodes instead normal 4148 diodes.
Here is it:
It's good pedal, but right now I preffer to use a few schottky diodes instead normal 4148 diodes.
- modman
- a d m i n
Information
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This one contains wiring information, else you should check the schematic on the first page
viewtopic.php?p=37093#p37093
viewtopic.php?p=37093#p37093
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I have tried to add a DC jack to plug into an adaptor, now my fuzz keeps dieing! I have traced the problem to something going wrong in the pots, so I replace them and they work for a while then something happens and they die again... any ideas as to what I might have done wrong??? I'm completely stumped!!
- Solidhex
- Resistor Ronker
Yo
You most likely wired it wrong...
Its interesting the amount of components for the Superfuzz. Lots of transistors for a fuzz. I think the fuzz and octave seem to have a richer, deeper tone to it than most diode clipping octave fuzzes. Is that second transistor really needed at all. The buffer after the first stage?
--Brad
You most likely wired it wrong...
Its interesting the amount of components for the Superfuzz. Lots of transistors for a fuzz. I think the fuzz and octave seem to have a richer, deeper tone to it than most diode clipping octave fuzzes. Is that second transistor really needed at all. The buffer after the first stage?
--Brad
- salocin
- Resistor Ronker
I had a similar problem. It would work for a minute or two and then slowly die over about 30-40seconds. Turned out I had accidentally cut a track which, from memory, was just after a cap around q2.Caillan wrote:I have tried to add a DC jack to plug into an adaptor, now my fuzz keeps dieing! I have traced the problem to something going wrong in the pots, so I replace them and they work for a while then something happens and they die again... any ideas as to what I might have done wrong??? I'm completely stumped!!
I also had problems with a bad solder joint on one of the pots so check them too (even if they look fine!)
Yeah, I had built a working circuit from an etched PCB, but of course I felt the need to add a few little modifications (DC jack, power starve pot...) and (typically) now I've ruined everything!! I am pretty sure its a power source issue, my DC jack is wired as such..
Please let me know if I have done this wrong, it's the first time I have tried adding a DC jack so frankly I'm just taking stabs in the dark!
Please let me know if I have done this wrong, it's the first time I have tried adding a DC jack so frankly I'm just taking stabs in the dark!
- ShortScaleMike
- Resistor Ronker
Information
switch the 9v battery and 9v circuit connections and you're golden.
- devastator
- Cap Cooler
Hi,
Anyone tried to change the tone switch to a potentiometer like zvex did on his Octane 3 ? That can allow more sound possibilities.
I saw a lot of fuzz pedals use this tonestack.
Anyone tried to change the tone switch to a potentiometer like zvex did on his Octane 3 ? That can allow more sound possibilities.
I saw a lot of fuzz pedals use this tonestack.
- ShortScaleMike
- Resistor Ronker
Information
Don't measure current. Measure voltage and start with the places you're expecting to see +9V, ground, and bias (on the transistors).
Debugging can be frustrating but it is actually very simple. Check everything methodically and you will find the problem. Presume nothing. Verify everything.
Debugging can be frustrating but it is actually very simple. Check everything methodically and you will find the problem. Presume nothing. Verify everything.
Hello Mike, I've been looking for a SF layout and was thinking about building yours, after looking att schematics shouldn't there be a 100k to ground at the output?ShortScaleMike wrote:Thanks for teh corrections Graeme, this is now a verfied layout:
Would an external 10k pot be useful to balance Q4 and Q5 or is that a set and forget thing? I see you have used the schematic whitout the 10k trim found on some schematics so maybe somebody else knows?
Nicklas
- ShortScaleMike
- Resistor Ronker
Information
Obviously we are looking at different schematics. My layout is accurate for the one I used.
There were multiple variations of this thing by various different companies.
There were multiple variations of this thing by various different companies.