RMI Harmonic Synthesizer

via this auction. Via Rasmus A. Nyaaker. Thanks Rasmus!

""The Harmonic Synthesizer - a precise approach to synthesis. You are given accurate control of waveforms by Digital harmonic Generators [2 digital oscillators with 16 sliders for producing frequencies 1x to 16x]. At your command are relative intensities of all overtones to beyond audibility! Each of the two digital harmonic generators produce an independent audio output for exotic contrasts in stereo. Preset waveforms can be selected or mixed with the generators for instant changes. Dynamic effects are created by voltage-controlled filters with low-pass, band-pass, and high-pass mixable outputs. [The envelope generator for the VCF is very strange on the Harmonic Synthesizer. It has a knob to select "Sweep Up", Sweep Down" and another knob for time.] Intricate melodic and rhythmic "sequencer" patterns are created by holding chords. Digital circuitry insures tuning stability and "drift-free" performance. The controls are rugged. The case is tough. RMI enjoys a history of building trouble-free instruments."----[from the RMI Harmonic Synthesizer's promotional brochure]"