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.
The presented circuit generates short pulses using a relaxation circuit with two complementary transistors...
This circuit was found in a Popular Electronics of the 80's. The NE602 functions as a heterodyne...
This circuit, from a 1988 documentation, makes successive actuation of the shower to control the...