The Model 219 Compound Touch Controlled Voltage Source from Source of Uncertainty is a modern recreation and refinement of the 219 keyboard, providing hands-on control for contemporary 4U systems. Across this magnificent master controller, forty-eight keys comprise four octaves of keyboard control and additional sections for even more touch-mediated modular fun. Built-in polyphonic outputs for round-robin style voice allocation and portamento control are onboard, as well as an eight-key preset voltage source, two joysticks, and a playable triple Pulse source. A dedicated CV input for FM modulation and external offset are perfect for adding vibrato to note controls or shaking-up CV control signals of any type. The 219 ships with an additional breakout module to enable both 5-Pin DIN and USB MIDI, extending its traditional control elements to a wider range of instruments. A powerful source of CV control for any monstrous 4U Buchla system, the 219 from Source of Uncertainty is sure to bring new modes of musical interaction to your modular rig. Features: Touch controlled voltage source for 4U Buchla systems Faithful recreation of the original 219 48 touch-sensitive keys 38 total outputs Polyphonic output section supports 2, 3, or 4 voice polyphony, or mono with portamento control 8-key preset voltage section Individual and common pulse outputs 1.2V/Oct equal interval voltage output Octave up / down keys Pitch bend keys with dedicated bipolar CV output 2x joysticks with X and Y outputs 3-key triple pulse source FM input for vibrato, etc MIDI breakout board included with 5-Pin DIN / USB MIDI I/O