This photoelectric circuit was found in a 70’s Ferranti's documentation. The circuit uses an operational one from that time. Modern equivalent components can be used in a new project.
This circuit is from a 1978 publication. It can be assembled with BC548 transistors for NPN and...
This double-T sine wave oscillator was found in the December 1995 issue of Electronics Now...
This powerful source was obtained in an American documentation of the 80s. Some components are...