Teisco 110f Monophonic Duo paraphonic analog synthesizer w/ MIDI

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"Here is a Teisco 110f Monophonic / Duo-paraphonic analog synthesizer! This one is really rare, has amazing sound and a lot of unusual features. Teisco was manufactured by Kawai in the early 80’s. The duo-paraphonic keyboard technology was based on ARP design.

Appart from some normal wear signs, it is in very nice condition. It has been serviced all the way last summer by one of the best tech here in Montreal. Every knobs, switches, sliders, keys, lights, buttons and jacks are working perfectly. The most obvious wear signs are on the wooden sides (see photos #4, #5, #6) and on the bottom side (normal scratches).

MIDI has been added by the same awesome tech (see photo 8) with the “MIDI to CV-Gate Interface MCV-628” by Papareil Synth Labs. All information, documentation and software can be found on the web. The interface let you control notes and one selectable control (either Filter Cutoff, PWM1 or PWM2). This implied the modification seen on photo 7, let me describe the elements seen on this photo from left to right:

the switch is to choose either the notes will be triggered by the keyboard or the incoming midi message
The LED: here is the Papareil’s website description about it: “It is a multi purpose led! It blink 3 times at power on, after the complete init of the cpu/software. It means "All is ok". In normal working condition, the Gate led lights when a note is played or if a recognised SysEx message is received. […] When the interface is in Autolearn mode, the Gate led stay on, until a MIDI message has been received.”
The red button is for autolearn (channel)
The knob has 4 positions and decide which parameter will be affected by modulation message (cc1): 1-cutoff, 2-PWM1, 3-PWM2, 4-OFF"