A Low Frequency Oscillator. It is similar to a normal oscillator except that it outputs very low frequencies (very slow waves) and is used as a control input into another part of the synth. Examples of its use are to create vibrato or tremolo effects....
Solus
The Solus is a 2 VCO, monophonic analog synthesizer with a 3-octave, 37-note
(C-C) keyboard. It, like most ARP synths, features mostly sliders instead of
knobs. It was built into a flight-case, with all of its inputs and outputs on the inside
of the case lid.
Both VCO's feature a slider selecting variable waveforms from sawtooth to pulse,
as well as a slider controlling pulse-width and the amount of pulse-width
modulation. VCO2 is syncable to VCO1 and can be detuned. The pulse-width
can be modulated by the LFO or the ADSR. The VCF (four-pole, lowpass filter)
has controls for frequency, resonance, as well as three sliders controlling
modulation amount from the keyboard, the LFO, and the ADSR. It also features a
digital ring-modulator and a pitch-bend knob. The back panel features interfaces
(in and out) for CV, Gate, and Trig. Also in the back is a footpedal input and
External Audio input, as well as high and low outputs.