Abstract: A CD jukebox display unit is disclosed for displaying the program information on CD covers. The unit includes a housing adapted for mounting to a jukebox and having a transparent front portion. A plurality of frames adapted to support a compact disc cover are supported within the housing for pivoting about spaced and substantially parallel axes slanted rearwardly in the rear of the housing. A horizontal track is provided adjacent the housing front portion and supports a slide member which carries a knob biased forwardly therefrom. A finger is secured to the knob and projects rearwardly therefrom so that when the knob is pushed rearwardly, the finger engages a selected one of the tabs provided on each of the support frames.

Abstract: A power amplifier circuit described herein is utilized as an audio output driver circuit for a currency-operated phonograph player. First and second series capacitors have a junction therebetween and are coupled across a floating, double-ended power supply. A speaker is coupled between the junction and ground. First and second complementary conductivity power MOSFETs are connected between a first power supply output and ground and between a second power supply output and ground, respectively. The MOSFETs are driven by an amplified audio input signal and alternately connect one or the other power supply outputs to ground to alternately charge and discharge the capacitors causing alternating current to flow through the speaker.