Just a silly post... I'm working on a fuzz with a sample and hold modulated resonant filter. By accident I happened to connect two wires that wasn't supposed to be connected, the beatbox duck was born! This is just me goofing around and the finished pedal with sounds nothing like this.
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Here is something really stupid that I made a few months ago. I was a bit tired of making guitar effects so I wanted to make a simple noisemaker and the atari punk console didn't do it for me, so I made up this "random note" tone-generator. The LFO is based on R.G. Keens psuedo random LFO that feeds into a LM13700 based VCO. Nothing special, but fun for a little while. :P
Another original ring modulator design. This is a much more complex version of the original Corruptor ring modulator. Insted of a ordinary oscillator we have a sequencer for the carrier frequency: 8 different steps that can be configured in alot of different ways. It can also be used as a stand-alone sequencer "synth" or a square wave fuzz and it can also do regular ringmod sounds. A perfect project for those who love off-board wiring.. :P The controls are: VOL: overall output volume MIX: this blends between ringmodulated signal and straight square wave fuzz FREQ: this is for fine tuning the frequency RATE: this controls the speed of the sequencer Rotary switches x3: these control the order of the sequencer steps Stages switches x3: these bypasses different steps in the sequencer SEQ switch: this turns on/off the LFO that drives the sequencer (does not turn of the oscillator) RANGE switch: this toggles between 3 different frequency ranges GATE switch: This turns on/off the gate. In the off position you have a free running sequencer Vero layout by Dino. Thanks!
Here's a new original design. :) This one is a ring modulator, a simple and brutal square wave ringmod. With the frequency pot you can tune the carrier signal to the note you are playing to find really cool sounds. As usual with these CMOS based circuits it works best using hot pickups and using the neck pickup with the tone rolled off. I did a demo video. Sorry about the lenght, I got carried away... I don't really like how the artwork turned out. I was going for something a bit nerdy with the lord of the rings reference but it turned out too metal for me haha.. Peterg at the diystompboxes forum finished his pedal long before me and his box looks much nicer. Have a look in this thread, which also includes alot more info on the developing progress :)
The last couple of weeks has been really crazy. I have moved from my old apartment to a house. Everything is finally coming together at the new place. I can't wait to fire up the soldering iron again. Here is my new workshop / home studio. Very excited! Merry X-mas and happy new year! / Fredrik
Update 2014-12-23: Savvas @ the tagboardeffects forum was kind enough to share a verfied vero layout for this one. :) Thanks alot! Original thread here. I added the vero layout to the bottom of the post. Here is a new original design that I have been working on for some time. It's a Pulse Width Controlled phaser that uses a CMOS switch as variable resistors. The main advantage to this approach is that you don't need to match JFET transistors or LDR/Vactrols. I hope you like it! :) Read about my progress, build reports, possible mods ect: http://www.diystompboxes.com/smfforum/index.php?topic=108823.0
Another new original - the Silver Fox Octaver. This is basically a continuation of the TOFUzz, but with a octave up aswell and CMOS based. The idea is the same: the squared-up signal triggers a gated oscillator to produce a pseudo octave down effect. The octave up section is a similar to Tim Escobedo's Digital Octave Fuzz, but implementet in a different way. The result is a very synthy octave fuzz. Compared to the Tofuzz it tracks better, has a wider range of tracking on the fretboard and has better sustain. I hope you like it. :)
It's very loud, so it's probably a good idea to add a resistor to ground in parallell with the volume pot to decrease the overall output. It's named after one of my favourite martial arts actors: Hwang Jang Lee. His made his breakthough in the movie "Secret Rivals" (1976) where he played the villain Silver Fox. "The April 77 Fuzz" is a limited edition of eight pedals that I have built for the french brand April 77. They will be sold exclusively at their store in Paris. Video demo soming soon! :) It's a very heavy and compressed sounding high gain fuzz reminiscent of a Big Muff. The circuit is based on my Flying Guillotine Fuzz with a few small modifications. These are handbuilt from scratch to finish on home etched PCB, with the exception of the artwork which is laser engraved by a professional company.
For this one I won't share the PCB layout since it will be sold commersially, but if you want to build it yourself just check out the Flying Guillotine Fuzz. :) Here is a short clip of a original phaser that I'm working on. You can read more and follow my updates here: http://www.diystompboxes.com/smfforum/index.php?topic=108823.0 I have been playing around with PCB layouts lately and the idea that they can look cool aswell. Maybe unnecessary, but fun and challenging. :) Here is alittle more info on these specific layouts. The Active tilt Equalizer is a common filter that you typically find in hifi amplifiers. In the middle of the tone pot it is almost completely flat and to one side it boost below the center frequency and to the other side it cuts. It also works great as a treble booster or a bass booster (depending on how you set the gain), both as a stand alone unit or after a low output fuzz. I also made a vero layout for this aswell, found here.
The Bazz Fuss is my modified version of the single transistor fuzz by Runoffgroove. For such a simple circuit it sounds really good, especially with guitar (despite the name). Vero layout and soundclip here.
I also made a PCB layout for my Active Baxandall equalizer. Vero layout and more info here.
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