The World of Musical Instruments Brochures

Catalog of the first Portasound in 1980.

Mini-keyboards, battery-powered, built-in rhythm, polyphonic with automatic accompaniment, and low cost. I think it's a revolutionary instrument that condenses the technology Yamaha developed with the Electone and creates a new sense of value.

PS-3, PS-2, PS-1. Dec. 1980.