This circuit was found in a 1968 documentation. The circuit generates three rectangular signals from a 400 Hz sinusoidal input. The circuit is suitable for applications in power controls.
This fast converter using operational was found in a 70s American documentation. The circuit can be...
This circuit uses two sensors that are placed at the intersection of a miniature railroad, causing the LED...
This RF wattmeter was found in an American 1980s documentation. The components are common and the...