555 simplified double wires logical state judge circuit

Published:2011/6/12 9:22:00 Author:nelly | Keyword: simplified double wires, logical state | From:SeekIC

As shown on the figure 7-6, the judger consists of the 556 anddouble-color LED. The actable multivibrator consists of the the right side of 556 and R1,R2,C1. The left side of 556 makes up of the Schmitt trigger. Their 10 foot and 4 foot contact external signal. The double-color LED produces red and green light. The dual time base circuit's output level and the double color CRT's color-emitting change with the logical state of the X and Y.



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