The instrument
Yamaha offered eight new analogue, monophonic synthesizers in the CS series in 1977 - 1979: CS-5, CS-10, CS-15, CS-20M, CS-30, CS-30L, CS-30D and CS-40M. They followed on from the company's first synthesisers SY-1 and SY-2. The CS devices have similarities, but have individual components and tonal differences. The CS-5 is a single-oscillator synthesiser with 37 keys, classic filter, envelope and modulation controls.
Details
The VCO has a six-stage octave selector switch (64′ to 2′) and offers sawtooth and pulse oscillation. They can be mixed together with the noise generator in the mixer section. The LFO offers sine, sawtooth and sample/hold, the multimode resonance filter with 12 dB/octave in addition to the standard cut-off frequency, resonance, LFO mod and EG depth via the three selectable filter types LPF, BPF and HPF. The VCA can be modulated by the LFO and the envelope. The external audio input can be routed through the VCF or the VCA section. (Source: Amazona)