This circuit was found in a Hands On Electronics with the suggested application an optical link for wireless TV headset or remote sound. The circuit is battery powered.
This circuit was found in an English operational documentation from 1970. The circuit can be...
This circuit is from a 1974 publication. It generates a pulse with several sinusoidal cycles from...
This solar cell driven circuit makes 4 LEDs run at a speed given by capacitor C2. The circuit is...