Presented here is a simple circuit for switching your CCTV camera outputs sequentially.It switches four video and audio channels sequentially, one at a time. Circuit and working Fig. 1 shows the circuit diagram of the four-channel video and audio sequencer. It is built around NE555 timer (IC1), 4017B decade counter (IC2), four npn transistors BC547 […]
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Credit- EFY. Published by Department of EEE, ADBU: tinyurl.com/eee-adbu
