Found in an 80's Hands On Electronics, this circuit turns on a light when it gets dark and goes out when it gets dark. The circuit can be adapted to use high-brightness white LEDs.
This circuit was found in a 1987 publication. A 4017 sequentially counts time in steps set by...
Found in 1967 General Electric documentation this circuit appears elsewhere in this section. SCRs are...
Found in an Electronic Design of 1964 this circuit has a control for the frequency and another for the...