Telephone Recorder(CD4511B,CD4518B)

Published:2011/9/8 1:49:00 Author:Sue | Keyword: Telephone Recorder | From:SeekIC

    The picture shows the telephone recorder. It is mainly used to record and display the number of use times of the telephone so that the user can know more about the condition of service of the telephone. The recorder consists of two 7-segment digital tubes so the highest counting can be 99. The circuit has the reset button so it can reset the counting.



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