Here's one from obscure synth history. I found this on Florian Anwander's website when updating this post. This is the first post on MATRIXSYNTH to ever feature the HARMS brand."The Harms MAC16 is a rare MIDI-to-CV/Gate converter which was made by a small one man company Harms in Hamburg Germany in the late nineties. The original price was around 1250 Deutschmarks (about 600 Euro). It provides 16 channels, which can be configured for any kind of MIDI to analog conversion. Basically there are five modes:
VCO (CV) - which converts note data, pitchbend into either Oct/V or Hz/V Voltage. Portamento can be added. There is also the possibility of microtuning, octave spread (for mistuned or non standard synths!), pitch offset and keyboardsplit zones
VCF - converts basically the note info into a voltage; then a SoftEnvelope, a SoftLFO, and one MIDI controller (modwheel or aftertouch) can be added; the amount of the envelope and/or the controller can be controlled by the velocity of the corresponding note. The converter channel can get its information either from a MIDI channel in general (using the last note) or can be assigned to a dedicated VCO-channel for polyphonic setups (* see below); keyboard splitzones are possible
VCA - same as VCF, only with other name
Aux - same as VCF, only with other name
Lite - similar as VCF, but no assignment to a dedicated VCO
Gate/Trigger - creates a gate (positive or inverted) from a note on event. Again it can use either the last note information from all notes of one MIDI-Channel or it can be assigned to a dedicated VCO-channel for polyphonic setups (* see below); splitzones are possible too of course
DIN-Sync out from MIDI-Clock"
See Florian Anwander's page on the Harms MAC16 for a pdf of the manual and more.
