How to Wire a Switchcraft Toggle Switch
- 1). Locate the terminals on your Switchcraft toggle. These instructions will be for a two-way--or Single Pole Double Throw (SPDT)--switch. There will be three terminals on a SPDT switch: a middle, common terminal "C" and a pair of outside terminals "A" and "B." The outside terminals represent the two positions of the switch, while the middle terminal represents the input signal. For switches with more positions, there will be more terminals, each of which will be assigned to a position on the switch.
- 2). Design the switching circuit. A simple circuit will take an input signal from an existing circuit and then route it through the switch to two separate existing circuits. Make sure the power rating of your switch matches the current flowing through the circuits you will be modifying.
- 3). Connect a wire from your input circuit to the common terminal on the switch and solder it in place. This will be the signal to be routed through the switch.
- 4). Solder a wire from the "A" terminal to the input point in your circuit. Do the same for terminal "B," attaching it to its proper point in the circuit.
- 5). Power on your circuit and use an amp meter to make sure the signal is flowing through the correct pathways. Place one probe before the switch and the other probe at a point in one of your switchable circuit paths. So if the switch is in the "A" position, place your probe somewhere in the "A" circuit. The amp meter should pick up a current when the switch is in the "A" position. If your switch is not functioning properly, check that all solder joints are secure.
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