This third-order filter was found in a 1975 publication. The circuit must be powered by a symmetrical source. The components can be changed for operation on other frequencies.
We found this circuit in the 1983 Radio Electronics Special projects magazine. The components are...
This 1 kHz TTL oscillator uses 3 inverters of a 7404 integrated circuit. The circuit is from a...
This circuit has a configuration that can be found elsewhere on this site. The power supply can...