Using one unijunction transistor and two bipolar transistors, this circuit generates a signal from 25 Hz to 3 kHz. The circuit is from Electronics Now magazine, January 0, 1994.
This filter has a regulated source configuration. It can be implemented with almost any...
We found this filter configuration in an old documentation. It is one of many possible ones that...
This circuit is from a 1998 Electronics Now and can be easily assembled since it uses a common...