This circuit was found in an 80's Electronic Engineering. The circuit uses a multivibrator with neon lamps and an optical coupling system.
This circuit can be powered by a single battery, either ordinary or button type. The coil consists of...
Found in a 1967 Ferranti documentation, this regulator makes use of an operational amplifier of the...
This common crystal oscillator configuration can generate signals from 1 to 20 MHz, depending on...