Solovox

The Solovox is a monophonic, three-octave synthesizer that is mounted in front of a piano to provide a secondary keyboard to play organ-like melody lines. Produced between 1940 and 1950, it relied on the basic tube oscillator and divider circuitry developed for the Novachord. The Solovox circuitry was adapted for use in some tonewheel organs (primarily the RT series) as a pedal synthesizer. This circuitry provides these organs with 32' voices and string and reed voices for organists who want to play pedal solos.

There were three models of the Solovox:

 * Model J produced from 1940 to 1946 (one oscillator covering one octave and five sawtooth dividers)
 * Model K produced from 1946 to 1948 (one oscillator, five sawtooth and three square wave dividers)
 * Model L produced from 1948 to 1950 (one oscialltor covering three octaves and three square wave dividers)