Built in 1U format, Intellijel 's 1U VCO is an analog oscillator with an assertive sound. The powerful oscillator delivers sawtooth, triangle, sine and square waveforms. A toggle switch toggles the module between VCO and LFO mode, a two switch changes the Tuning from the zero position in a range of +/- two octaves. The hardsync input is additionally equipped with a Comparator and thus able to follow waveforms other than square and create the classic sync sounds.