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.
Pico Voice from Erica Synths is amazingly versatile sound source just in 3HP. It features 8 sound generation algorithms: Karplus Strong, Chords, Wavetable, TB303 bass-line emulation, PWM, Supersaw, Wavefold and Harmonic saturation, with three adjustable parameters per algorithm and CV control over one user defined parameter. Despite the small size, Pico Voice sounds bigger than it is!
The Malekko/Richter Oscillator II is a great-sounding, solid analog Oscillator/LFO with some serious tricks up its sleeve. Fine and Coarse frequency controls are provided. Volt per octave and exponential (with attenuator) CV frequency inputs are provided. An output for each waveform is provided (Sine/Triangle/Square/Saw). A second series of outputs are provided for phase-modulated versions of the Triangle, Square, and Saw waveforms.
Use Fusion Mixer as two independent 3-input mixers (also for stereo signal mixing) or 6-input mixer. Special feature of the Fusion Mixer – great tube overdrive effects when level knobs are set to 3 o’clock and above. When used with drum machines, it even emulates side chain compressors. When used to mix signals from VCOs Fusion Mixer works as wave shaper, especially, if pulse width modulated pulse signals is used in one of inputs.
All Fusion modules by default are configured to work with regular eurorack PSU.
6 audio inputs
Two independent 3-input mixer
Sum of all 6-inputs
Soft tube overdrive
Configurable power supply – standard Eurorack +-12V connection OR Eurorack +-12V plus Erica Synths Tube heater PSU