This circuit for audio applications was found in an English magazine from the 80's. The circuit has a pass band below 3 kHz making it ideal for telecom applications.
This circuit is from an Electronics World of 1968. The transistors are of the time and the power...
This circuit is from National Semiconductor documentation and employs LM102 operators that are no...
This circuit can reduce the voltage of a source by providing regulated adjustable output. The...