Abstract
A manually operated switch located on an electric guitar controls a remotely located tuning device through the existing guitar cable. Preferably, the switch is located in an adaptor which plugs into the audio output jack of the guitar and into which is plugged the guitar cable. Circuitry associated with the switch sends a control signal on the audio cable and circuitry located adjacent the tuner interprets the control signal for controlling the tuner.
Published Version
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