Aries Music 77 Modular Synthesizer Product Catalog; Aries System 300 Electronic Music Synthesizer, Aries Kits. Illustrated with black and white photographs, detailed descriptions of modules, features, and applications of synthesizer modules. The Aries 300 catalog features back cover illustration of osilloscope display- "3 Coins in a Fountain"- a logarithmic spiral generated by a VCO, VCF, and Mixer. Lissajous pattern from 2 sine wave oscillators, resonant spiral crossplot demonstrating relation between vcf input and output. Includes a Tesla Coil Kit, price lists, Comparison chart to Moog synthesizers, Arp synthesizer pictured for sale with prices. Key Personnel: Dennis Colin, Frank Fink, Arthur Pennell, Dennis Graham, James Bastable. Affiliated with Boston School of Electronic Music.