Devices that control the current that flows through a circuit.
Rotary Potentiometers - Linear
A variable device that opposes the flow of current. The resistance of these devices is changed using a revolving stem that is attached to the central axis. The resistance varies equally as it is turned.
Rotary Potentiometers - Logarithmic
A variable device that opposes the flow of current. The resistance of these devices is changed using a revolving stem that is attached to the central axis. The resistance varies exponentially as it is turned.
Trimmer Potentiometers
A variable device that opposes the flow of current. The resistance of these devices is changed using a rotary portion of the device (usually needing a separate tool) that is attached to the center axis of the component.
Adjustable Power Resistor
A variable device that opposes the flow of current. The resistance of these devices is changed moving a central terminal between one end and the other of the component.
Thumbwheel Potentiometers
A variable device that opposes the flow of current. The resistance of these devices is changed using a rotary disk that is attached to the center axis of the component.
Slide
A variable device that opposes the flow of current. The resistance of these devices is changed using a stem that moves between one end and the other of the component.
Joystick Potentiometers
An input device consisting of a stick that pivots on a base and reports its angle or direction to the device it is controlling.
Value Display Potentiometers
A variable device that opposes the flow of current. The resistance of these devices is changed by pushing a button or rotating a wheel. The values that the device is being changed to is displayed on the front of the unit.