This passive loudness control was obtained in an old publication. The critical component is the tapped potentiometer that can be adapted with an external resistor network.
This circuit was found in a Popular Electronics of the 1990s. Its purpose is to expand the scale of...
This circuit can be used as an input shield by removing the signal directly from the second port,...
In figures 1 and 2 we have two current drains that can be made with operational amplifiers and...