A potentiometer has 3 contacts and is usually used to control voltage. It can be used like this as a transducer converting position (angle of the control spindle) to an electrical signal.
Relay An electrically operated switch, for example a 9V battery circuit connected to the coil can switch an AC mains circuit. The rectangle represents the coil. NO = Normally Open, COM = Common, NC = Normally Closed.
Amplifier (general symbol) An amplifier circuit with one input. Really this is a block diagram symbol because it represents a circuit rather than just one component.
The diagram shows a simple circuit of a battery, wires, a switch and a lamp. The switch works by breaking the circuit.
Wiring diagram for led lights on a boat readingrat. Carling rocker switches. Wiring diagram basic boat marine. Boat light wiring diagram moesappaloosas. Wiring diagram basic boat marine. Boat lights wiring diagram. Wiring diagram for led lights on a boat readingrat. Wiring diagram for boat lights readingrat. Boat wiring pinterest boating rv mods and. Wiring boat navigation lights v diagram. Viewing a thread help with wiring jon boat running light. Marine navigation lights wiring diagram. How to wire a boat light from switch horn also. Boat switch wiring diagram bestharleylinks. Boat light wiring diagram moesappaloosas. Stunning best sample detail boat trailer lights wiring. Wiring diagram basic boat marine. Mastercraft boat wiring diagram rewiring a. Basic boat wiring diagram motor. Best images of simple boat light wiring diagram.