Up for sale, a 1970s Yamaha CS-10 monophonic synthesizer in excellent condition, complete with the original hardshell case. A perennially popular monophonic wonder, this genuine vintage example offers easy tweakability and signal path visualization, with a warm, bubbly all-analog circuit well suited for looming low end and rich buzzy leads.

Featuring 37 keys with sections for LFO, VCO, VCF, VCA, Mixer, and External audio, the CS-10 is a flexible and intuitive creative soundscape tool, with two separate envelope filters dedicated to the VCF and VCA. The stepped Feet control has six settings, extending the keyboard range to eight octaves, and the incorporated PWM (Pulse Width Modulation) controls deliver thicker, rich square-wave tones.

Features:

• Oscillators: 1
• Waveforms: Pulse, Saw Down, Square, White Noise
• Osc Modulation: Keyboard, LFO, Pitch Wheel
• Envelopes: 2
• Envelope Parameters: Attack, Decay, Sustain, Release, Time
• Filters: 1
• Types: 12dB Slope (2-pole), Band Pass, High Pass, Low Pass, Resonance
• LFO: 1
• LFO Parameters: Saw Down, Sine
• Case Details: 37 non-weighted keys
• Controls: Knobs, Mod - Wheel, Pitch -Wheel
• Audio Output Connections: 1/4" Phone Jack, Mono Out
• Audio Output Count: 1
• Inputs: Mono 1/4″ TR
• CV Ports: CV IN, CV OUT, Gate In
• Power: 120 / 220 V AC

Extremely clean, there are just a few minor marks on the enclosure. The graphics are pristine, and all of the original knobs are present.

The original Yamaha hardshell case is included.