Video Line Bar Generator Circuit

Posted on Aug 9, 2012

A 555 and a dual 556 timer generate a rudimentary video signal, as shown in the schematic. The first timer generates 4.7-8 synch pulses operating in the astable mode with a 64-8 period. The second timer generates a delay pulse, which triggers the third timer to generate a bar,

Video Line Bar Generator Circuit
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The second timer sets the bar position and the third sets the bar width.

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