This Keyboard in particular was quite the treasure! Not in the way that The Sk-5 is the “Flagship” for circuit bending in general, but in the way that this one was salvaged out of an old rat infested travel trailer in the Mojave Desert with 3 broken keys covered in filth. It was cleaned up and in my possession for many years collecting dust until I met Jasonic at Sonic Circuitry he introduced me to the idea of “Circuit Bending” and realized what it was.
Casio SK-5 “Synapse k-5”
This is probably about my 6th build, but my 1st serious one. Basically I spent a couple days poking around, playing with different things finding nice groans, crackles, glitches etc. Really u can go on forever with all the different combinations of bends but I decided to keep it simple but approach it like a synth style. It has 22 spdt toggle switches wired in, 17 of which can be viewed as 3 basic groups. The other 5 switches control speaker on/off, internal LED’s and body contact on/off. below is a list of mods on it.
11 key effect switches
3 effect adjustment potentiometers
2 triggers/threshhold switches
5 drum effect switches
8 body contacts
1 RCA duo effect Break-out Box
1 1/4in. output
soniccircuitry 