The Electrosmith 3340 VCO is an all analog, voltage controlled waveform generator that uses a reissue of the legendary Curtis CEM3340 IC. Many believe this chip to be the greatest sounding analog oscillator of all time. Simultaneous outputs of sine, triangle, sawtooth, and square waves are available along with linear/exponential FM, hard/soft sync, and PWM [...]
The Module A-110-2 is a low-cost voltage-controlled oscillator. It’s a slightly reduced version of the standard VCO A-110-1. Compared to the A-110-1 the A-110-2 has no sine output and the (expensive) octave rotary switch is replaced by a 3-position toggle switch. In return the A-110-2 is equipped with an additional linear FM input and a [...]
Module A-111-5 is a complete monophonic synthesizer module that includes these components (modular version of Dark Energy):
RYK ALGO, the excellent Quad Complex Oscillator Bank. Give your LFOs and Envelopes something to play with.
The Apollo View Allscilator is a "jack of all trades" based on the legendary Curtis chip CEM 3340 and can output an incredible 8(!) waveforms simultaneously.
The Angle Grinder is an analog OTA based quadrature sine wave oscillator, filter and waveshaper.
This product has multiple variants. The options may be chosen on the product pageThe Shakmat Modular Banshee Reach is a fully featured analog VCO with thru-zero frequency/phase modulation capabilities.