link Circuit-Bent Casio SK-1
"The trigger signal gets send into the 4n25 phototransistor optocoupler, this makes a connection between two points on the circuit-board that makes the internal sequencer advance one step."
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electronics
diy
circuitbending
on 28.12.2008 14.02
link Casio VL-1 with a build in trigger input
"The trigger signal gets send into the mini jack input. Then it goes through the 270K resistor. Then it goes into the transistor and makes the Collector and the Emitter connect. So connect the collector and the emitter of the 2n2222 to the points on the circuit that make the internal sequencer advance one step. Finally connect the earth of the jack to the earth of the battery inside the VL-Tone."
filled under
diy
circuitbending
electronics
on 28.12.2008 14.01