I was playing around with my Juno-60 Arp and the Space Echo today, experimenting with tempo changes, and thought it would be nice if the Space Echo would follow the tempo/clock changes.
Has anyone ever thought of modifying an RE-201 to control the motor speed from a sync input? Or even done it?
My first thought is to use a frequency to voltage converter IC to replace the (linear resistance) repeat rate potentiometer, controlling the voltage between (51) and (52) on the power supply board (in the motor circuit section). The IC would be triggered by a sync signal (+5V pulses) from an external device (i.e. a Juno sync out). As clock input I would use the footswitch pedal jack (so as not to damage the Space Echos cabinet). And maybe it would be best to have the poti and the external sync in parallel, with a switch between the two sources.
My second thought is I'm not sure if an IC based solution would be flexible enough, i.e. regarding dividers, level adjustments (depending on where the snyc out comes from), ... So maybe an Arduino based solution would be a better approach.
What do you think? Good idea, bad idea? Good approach, bad approach? All input is appreciated.
Has anyone ever thought of modifying an RE-201 to control the motor speed from a sync input? Or even done it?
My first thought is to use a frequency to voltage converter IC to replace the (linear resistance) repeat rate potentiometer, controlling the voltage between (51) and (52) on the power supply board (in the motor circuit section). The IC would be triggered by a sync signal (+5V pulses) from an external device (i.e. a Juno sync out). As clock input I would use the footswitch pedal jack (so as not to damage the Space Echos cabinet). And maybe it would be best to have the poti and the external sync in parallel, with a switch between the two sources.
My second thought is I'm not sure if an IC based solution would be flexible enough, i.e. regarding dividers, level adjustments (depending on where the snyc out comes from), ... So maybe an Arduino based solution would be a better approach.
What do you think? Good idea, bad idea? Good approach, bad approach? All input is appreciated.
Statistics: Posted by synthicted — Sat Dec 07, 2024 5:21 pm — Replies 1 — Views 59