Solid-state television receivers¿a pattern of second generation design for monochrome and colour

Semiconductor technology has now reached a point where high voltage transistors, integrated circuits and thyristors may be used with confidence in consumer equipment. In this paper solid-state monochrome and colour receivers are described that exploit the latest semiconductor devices to provide receivers of a high performance standard. For horizontal deflection, high-voltage transistors are used and regulation is obtained by the use of a thyristor employed as a phase-controlled rectifier in the power supply. Integrated circuits are extensively employed in both receivers, typical applications being for sound i.f. amplification, in the video signal processing sections and in the RGB matrixing and demodulator circuits of the colour receiver.