Toggle switches

SPST - This is the most basic switch, and can be used to turn a portion of a circuit on or off. it is ideal for a killswitch




SPDT - Toggles between two portions of a circuit, such as, say, two pickups.




DPDT: ON/ON - Similar to the above, but has two independent poles, it can be used to toggle phase. (sides).




DPDT: ON/ON/ON - This switch may be used as a series/parallel switch with the middle position providing a coil tap.




DPDT: ON/OFF/ON - Similar to the above, although with a "silent" option in the center position, preventing the passage of any signal.




3PDT: ON/ON - Similar to the above, with an Extra row of poles, usually used in effects pedals for 'True bypass' wiring.