DIGITAL SWITCH WITH ANALOG FEEL

A manually controllable switch provides a user with an "analog feeling" for controlling digital electronics. A plurality of first electrical conducting portions are alternately arranged with a plurality of second electrical conducting portions. Physical spacing between electrical conducting portions is proportionally and symmetrically varied to provide a sequence of logical states upon movement of the manually adjustable control knob. An electrical contact on the control knob moves into and out of engagement with the electrical conducting portions. Contact between the contacting portion and the conducting portions causes changes in logic state as recognized by a microprocessor or dedicated circuitry coupled to the conducting portions. The microprocessor or dedicated circuitry recognizes specific sequences of change in logic state as indicating manual movement of the control knob.