A longer time ago I had bought an Edirol PC-50 MIDI keyboard, to be able to connect to some synthesizer programs on my computer:
Now it would be interesting to be able to also connect it to my TTSH. For that I would need some MIDI-to-CV interface. At http://midisizer.com/midi2cv-mk2/ I found a nice little PCB design, called Midi2CV. It seemed to fit to the TTSH. I have ordered the PCB, and the needed components at Mouser. The Mouser components arrived first. As usual a lot of little plastic bags:
The delivery of the Midi2CV PCB and pre-programmed ATMega328p microcontroller took a little longer. It left the US quite fast, but customs in Germany took about two weeks.