This circuit causes an LED to flash at a frequency determined by the capacitor. The circuit is powered by only 3 V and can be used for signaling.
This circuit was obtained from a 90s Radio Electronics. The value of R1 determines the scale...
This small signal injector generator was found in the February 1971 issue of Radio Electronics magazine....
This is one of the many versions of cricket that the reader can find on this site. This circuit is...