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一、ZD-4自动广播控制机ZD-4自动广播控制机,是专为县一级广播站实现站内自动广播和遥控公社放大站而设计的。从一九七七年十一月在我区柳江县广播站使用,性能良好,目前已由南宁电视机厂小批量生产。其特点是:由PMOS(P型沟道的金属一氧化物-半导体)集成电路制成的数字式石英钟提供控制信号,时间准确;电路结构简单,
First, ZD-4 automatic broadcast control machine ZD-4 automatic broadcast control machine, is specially for the county level broadcast station automatic broadcasting station and remote commune to enlarge the station and design. From November 1977 in our district Liujiang County radio station to use, good performance, at present has been Nanning TV Factory small batch production. The utility model is characterized in that a digital quartz clock made of a PMOS (P-channel metal-oxide-semiconductor) integrated circuit provides control signals with accurate time; the circuit structure is simple,