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.
This is not a set it and forget it oscillator. It’s an oscillator that demands to be tweaked, modulated and explored. It’s an oscillator that’s proudly analog and eschews all shortcuts. As such, it’s an oscillator that rewards you with sounds as boundless as your creativity.
The Atlantis is heavily inspired by the architecture and sound of the classic Roland SH-101. It has always been one of our favorite synths and we really liked how the seemingly limited architecture allowed for all sorts of creative and musically useful sounds to be easily generated. Just like the 101, it is quick to dial in a beautifully rich bass and lead sounds but there is much more sonic territory to explore as well.
Modulation VCO: triangle core with Hard Sync and Link switch to connect pitch to primary
Primary VCO: triangle core with Hard Sync, Octave switches, Linear/Exp FM and PWM
Global modulation bus with four VCO waveforms, noise and S&H options
Cascaded 4-Pole multimode filter
Looping ADSR with range switch, manual gate, and external level (velocity) control.
Three position output clipping circuit
27 jacks for creative and complex patching options
The Pittsburgh Modular M3 is a unique signal routing module with 3 distinct sections able to perform several different functions at once. Signal splitting, mixing, and buffering are combined to create a module that is both compact and incredibly useful.
The top section labeled MULT, is a standard 4 jack passive multiple used to create 3 copies of the original signal. One input becomes up to 3 identical outputs.
The bottom 2 sections, MIX1 and MIX2, both function the same way. Two input and 2 outputs allow each section to be used as a unity gain mixer or signal splitter. Note that MIX1 and MIX2 do not buffer 1v/oct signals.