The tine organ is a MIDI controlled portable acoustic organ with the dimensions of 4”x13”x14”. Although it sounds like a pipe organ in a cathedral, its sound producing mechanisms are very different. Instead of pipes and a wind chest, it uses electromagnets and steel tines to produce 20 chromatic notes starting at middle C with full polyphony. Each tine is coupled with an electromagnet that outputs PWM at its fundamental pitch. The pull and release of the tine by the magnet causes a sustaining effect. The soundboard under the bridge is mahogany and the body is made of bubinga. Inside it houses a small Arduino micro-controller that accepts MIDI input that controls 20 polyphonic software oscillators (like 20 function generators) which are stepped up to 30 volt pulses though 3 ULN 2803 Darlington drivers to the magnets.
