This circuit was found in a RE Experimenter Handbook from the 90's. The components are of the time, rare nowadays, except the 555 and 4017.
This circuit was obtained in the publication 101 Electronics Projects of 1979. The circuit can be...
This circuit was found in a French magazine Toute LÉlectronique from 1978. Transistors are not...
This linear speed control for DC motors up to about 2 A was found in a 1978 publication. The power...