Jon Johnson 208 Report post Posted April 4, 2017 The Paia 2720 Synthesizer was a self contained modular synthesizer that you could build from a kit and add modules and features as desired. It was advertised heavily in many electronic magazines and and as a featured article in them. the instrument being modular made it extremely flexible and cost effective for musicians to get into synthesizers. Paia founder John Simonton published a series of articles on the 2700 series in Radio Electronics during it's time. It has a single Voltage control oscillator with Ramp, triangle and pulse/Pulse width. It also has a EG aka in Paia lingo as Function Generator. With manual trigger button and attack and decay, and variable attenuator. 2 filters one low pass and the other bandpasswith resonance control. Additionally there is an Low Frequency Oscillator and Voltage controlled Amplifier, a 3 octave keyboard with glide control and pitch transpose with two trigger outs and one control voltage out. View full synthesizer Share this post Link to post Share on other sites