Small Midi Development Board
I have sometimes to deal with some quick and dirty MIDI projects, and wiring a socket on a breadboard can be quite delicate because of the traction force from the cable. So, I’ve designed a small dev board who features a MIDI input (with its 6N137 active optocoupler), a MIDI output, and three RCA connectors. Two weeks and $15 later, I got my ten boards straight from China, thanks to dirtypcbs.com. I’ve made a mistake with the holes size of the RCA socket, but thinning the pins with a Dremel should do the trick for the next kit soldering. 😉
The (fixed) gerber files are freely available. Be careful to use the yellow RCA sockets (from eBay) and not the black ones: the footprint is different.