Found in 1970s General Electric documentation, this circuit uses period components to control a 12 V motor. Transistors support modern equivalents according to the controlled motor.
This circuit is from a 1967 RCA documentation. Components can be replaced with modern equivalents. The...
This 80's circuit uses a microcontroller programmed to generate various songs. The circuit can serve...
This amplifier, suggested by National Semiconductor, is characterized by its very high input...