SIMPLE CV QUANTIZER
This circuit takes a continuously variable dc voltage and outputs only voltages related to each other musically, using the 1v/octave standard. It utilizes a preprogrammed PIC which is included with purchase of a PCB. It is has a very low parts count, requires no calibration, and is small enough to be used either as a seperate synth module or as a daughter board to be attached to the input of an oscillator or output of a sequencer/s&h/other cv generator.
For schematic, bill of materials and theory of operation for newer boards, download this PDF file.
If you have a rev 2.0 board, here is the old documentation on that.
Price for 1 board and 1 preprogrammed PIC $14. The current batch of boards are missing their part values on the silkscreen, see this note for more information.
Email Michael@Bartonmusicalcircuits.com to place an order.
A thread on the Muffwigglers forum where people are sharing front panel designs for building this in Euro format
A very long thread on Electro-Music where I initially announced these boards for sale