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Lo-fi Terror Noise Synth

Lo-fi Terror Noise Synth This noise machine is a collage of ideas all put together in a rush: a 40106 polyphonic oscillator section with starve control that goes through a galactic fuzz and a dirrrty delay section. It is not the cleanest build around, but it is nasty, edgy and capable of otherworldly alien sounds. Read More

ISD1820 Filteroid

ISD1820 Filteroid Mainly used as a sampler/looper, the ISD1820 chip is used here in feedthrough mode. This turns this circuit from Synthlurk into an audio processor that can be used as a filter, amplifier, fuzz, suboscillator, noise generator or distortion unit. Check this thread on LMNC Discourse group to learn more about it. Read More

4ms Noise Swash

4ms Noise Swash A chaotic random noise maker, self-oscillating fuzz/distortion with power sag, clipping diodes, feedback and overall unpredictable whackiness. Not many components but lots of pots to solder, have a look at the veroboard layout here. Read More

Pipsqueak

Pipsqueak The Pipsqueak is a dual CD4046 stereo device with 14 metal terminals that creates all sorts of chaotic bleeps, crackles, blurps and screeches. This circuit by Mroztronium started as a tribute to Michel Waisvisz and Geert Hamelberg Cracklebox: a box with metal contacts on top, which generate various unusual sounds and tones when pressed… Read More

Noise Bomb

Noise Bomb This pedal is a continuation on the Noise Ensemble circuit, taking the pt2399 abuse to a new level. It basically adds controls for delay, delay time, gain and echo, making it even more noisy and weird. Still it is a relatively easy build, find the veroboard layout here. Read More

Noise Ensemble

Noise Ensemble With a few components and using the pt2399 chip in an unusual way, Anchovie created this fuzz/delay/modulation/noise pedal that's capable of ""extreme amounts of fuzz, delay, flanger-style sweeps, chorus, wobble and pitchbend effects". View the original thread at DIYstompboxes. I followed the veroboard layout and the mods by Fredrik at Parasit Audio. Read More