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 low drift or offset circuit is from an 80's documentation. The configuration can be made with...
This circuit was found in a Texas Instruments handbook about operational amplifier. It has a very...
This Darlington circuit is intended for the production of very low frequency signals. The...