The 0-COAST is a single voice patchable synthesizer. Its name reflects the fact that it utilizes techniques from both the Moog and Buchla paradigms (aka “East Coast,” and “West Coast,” due to their locations), but is loyal to neither and thus implements “no coast synthesis.”
While the 0-COAST utilizes classic modular synthesis techniques, we designed it to operate with or without the use of patch cables. The necessary connections have been made from circuit to circuit so it operates as an expressive, musical MonoSynth. Using only the MIDI controller of your choice you could apply new timbres to your existing musical forms!
Using the included Patch Cables you could get more scientific, experimenting with new ways to wire up the circuits. You might even forgo MIDI altogether, disappearing into a cloud of analog FM induced Sidebands and harmonics scattered around a single fundamental drone that has nothing to do with any form of music you’ve ever known.
Erica Synths DIY Modulator is 35mm deep, skiff friendly, has solid mechanical construction and doesn’t require wiring.
The Modulator essentially is LFO with simultaneous triangle and square wave outputs, clockable S&H with external CV input and noise source. A kit comes with two versions of noise generator – simple, transistor-based and more complex Zener diode-based one. Latest provides perfect, full spectrum white noise.
LFO with triangle and pulse wave outputs
Choice of transistor-based or Zener diode-based noise generator for massive, full spectrum white noise
The core of the Envelope Generator is borrowed from famous Russian synth Polivoks, but significantly updated schematics – eurorack standard positive gates, envelope amplitude, inverted envelope output, looping feature (looping on gate on). Bonus feature Gate Delay – the module outputs delayed gate signal after Attack stage. Chain up several (4-5) Envelope Generators, each with delayed gate to create evolving polyphonic synth-like pads!
The core of the VCO is borrowed from famous Russian synth Polivoks VCO and in exponential converter we use the original matched transistor IC that was used in Polivoks. But there are significant updated schematics to have the most out of your modular setup.
The SWAMP is a random CV and audio generator inspired by the famous Wiard Wogglebug module; it’s often the heart of self-generating patches and brings controllable randomness to your modular system.
In the SWAMP module we introduced numerous modifications and improvements to extend potentiometer range, added an audio input, which, when connected, replaces the internal Tone oscillator, replaced the expensive dual vactrol, built S&H circuit around the made in Riga S&H IC AS1100CK2, added audio waveform selection switches, CV output configuration jumpers and much more.
Three random audio frequency outputs
External audio input routed to ring modulator
Three random CV outputs
Clock input and output to sync the module to your modular system
CV control over internal clock for even more extreme randomness