Current Status of Apple Receiver Circuits and Components

This paper reviews the components and circuits of a developmental color television receiver utilizing the Apple type of display. The block diagram of the complete receiver is presented, together with detailed diagrams of circuits peculiar to the display, i.e., the index signal amplifier, color signal processing, high-voltage, horizontal sweep, and focus circuits. Photographs of the chassis layout and electron optical assembly are presented. The problem of integrating the circuits is outlined and typical receiver performance figures are stated.