This is an old revision of the document!
For MIDIfying old analog Sound gear You'll need bilateral switches in some cases. In my case I needed more than 100 of them! For that reason I created the MBHP_4066 board. One MBHP_4066 board provides 16 bilateral switches. For more Information have a look of the pdf file below.
Thanks for the engaged support nILS and PCB Mike!
- Lemonhorse (28.05.2010)