The CMOS Orchestra > 40106
Nano-B the 2.50 Euros synth!
This is loosely based on the excellent series by Elliot Williams from hackaday.com (http://hackaday.com/tag/logic-noise/) . This is an awesome source to get into audio hacking. Here’s the BOM and price list: Breadboard 1.00E 40106 IC 0.30E Switch …