[reset switch]

Circuit-bending, in its anti-theory universe, creates electronic realities that at times are too bizarre for its own electronics to handle. The circuit crashes. Turning it off and back on might reset it, but it might not. Interrupting power from the battery supply may be the only way to reset the circuit. The batteries can be removed, of course, and put back in.



But more conveniently (and safer, since some crashes represent the possibility of circuit damage and resetting should be done quickly), wiring a push-button switch in the middle of one of the two wires connecting the battery compartment to the circuit board will give you instant access to power interruption.

Push-button switches come in two types: "normally open" (this MAKES the connection when pressed), and "normally closed" (this BREAKS the connection when pressed. You want the "normally closed" version to break the connection between the batteries and circuit. Mount this switch on the instrument's case where it's out of the way and not likely to be hit by accident.