Philip Rees Little MCV Midi to CV converter V/oct or V/Hz

via this auction

"This Little MCV is super handy and in excellent shape. It works great with V/oct or V/Hz synths. Also has 3 different trig settings. Depending on the synth you're using, you might have to tune or trim the MCV with the little pots on the side. Easy to use and best of all, it has a normal plug on it! No wall wart!"