Single medium audio-visual teaching machine

摘要

An audio-visual teaching machine including a source record playback unit providing a composite source output signal corresponding to a source record having audio, video control and source control portions; a video control unit for storing the video control portion of the composite source output signal and providing a composite video signal corresponding to the stored video control portion for application to a video display unit; a source control unit responsive to the source control portion of the composite source output signal for controlling the operation of the video control unit and the source record playback unit; and circuitry for applying the audio portion of the composite source output signal to an audio output unit.