Overview STO is a compact but feature-packed oscillator. It features a clean sine output, sub square output, and a unique variable-shape output. The Vari-Shape enable smooth transitions between different waveform shapes and it is voltage controllable. Just feed it with a slow LFO and you get a continuously changing audio spectrum. Paired with Linear & Exponential FM input and the S-GATE input to gate your sub square output, the STO is a powerhouse VCO for its size. Features Triangle core VCO Oscillator outputs: Sine, SUB Square, Vari-Shape Voltage-controllable Vari-Shape parameter for smooth timbral change Linear and Exponential FM Hard Sync S-Gate to switch on and off Sub Square output Format Eurorack (Doepfer) 3.5mm Jack Functions OSCILLATOR INS / OUTS 6 INS / 3 OUTS Expander N/A Dimensions 3U HP 8 Max. module depth 30 mm Power +12V: 40mA, -12V: 30mA Weight 0.095 kg Manufacture Page STO Manual STOManual.pdf Video