Filter – evidenti.com

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

Quantum Defrakulator

Quantum Defrakulator This is the first version of this great sounding synth by Parasit Studio. It has three independent square wave oscillators with a common filter and an lfo switch that turns oscillator 1 into a 4-step sequencer. Not an easy synth to make, but a very rewarding one once it's done. You'll find all… Read More

Korg MS-20 Filter 9v

Korg MS-20 Filter 9v A clone of the infamous MS-20 filter but slightly modified so it can run on 9v. It has low/high pass switch, frequency and resonance pots. Here you'll find more info about this circuit and how to build it. Read More