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 was found in Radio Electronics magazine from November 1960. The circuit is powered by a...
In the figure we have an application in which the input and output voltage are equal, with the...
We found this circuit in a Radio Electronics from the 90s. The circuit is for conventional analog...