This circuit was found in the July 1998 issue of Electronis Now magazine. It is a traditional gated version of the 4049 and has its frequency controlled by R2.
Another of the many tachometer circuits we have on our site. This one is from the September 1976...
More and more supercapacitors are being used as supplementary sources of energy in several...
We find this circuit in a 555 application manual. The circuit generates triangular signals that...