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PAiA | 2720 Synthesizer

Description

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, pulse or 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 bandpass with resonance control. 

Additionally there is a 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. 
BrandPAiA
Model2720 Synthesizer
DeviceSynth
TypeKeys
Engine TypeAnalog
EngineModular (Semi)
Voices (max)1
Oscillators1
LFO1 Noise
NoiseY
Engine Detailed1 VCO, Pulse, Pulse Variable, White Noise
Filter (VCF)2 Band Pass, Low Pass, Resonance
Envelope (VCA)1 AD
Keys37
Key typeKeys
VelocityN
AftertouchN
CV-gateCV/Trigger I-O
Extra infoDIY kit
Produced:1972
Legend: Obvious Y: Yes, N: No, N/A: Not Applicable
VCO Voltage Controlled Oscillator DCO Digital Controlled Oscillator
LFO Low Frequency Oscillator Sub Sub Oscillator
VCF Voltage Controlled Filter VCA Voltage Controlled Amplifier
Velocity As with a piano, the harder you hit a key, the louder the sound, unlike most organs which always produce the same loudness no matter how hard you hit a key. Aftertouch Pressing a key after you activated it. Channel Aftertouch, no matter which key, it will send a Channel message. Poly Aftertouch, sends the pressure per key instead of the whole channel.
Values for OSC, LFO, Filter, Envelope are per voice unless stated otherwise.

Manuals, patches etc.

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