555 point-frequency TV terminal circuit


Posted on Feb 6, 2014

As the figure 14-17 shows, this circuit is composed of the input circuit, the line frequency synchronization generator, the sample-and-hold circuit, the voltage control delay generator and the RF modulator.The input circuit is composed of the input attenuator RP1 and the emitter follower VT1. The astable multivibrator is composed of the IC2 and RP2,..


555 point-frequency TV terminal circuit
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