This circuit, for frequencies up to 100 kHz, was found in American documentation from 1970. The circuit can serve as a reference for projects with modern equivalent components.
This low pass filter has attenuation of 5.5 dB and the frequencies depend on the values of the...
This circuit is from an old 80's linear circuit manual. The configuration can be implemented with modern...
Found in an American 1980s documentation, this circuit makes use of a sensor of the era uncommon...