This silencer or squelch preamp circuit was found in a documentation for radio amateurs. It completely mutes the circuit when there is no sound picked up by the microphone.
A stereo digital mixer using the 4053 is built as shown in figure bellow. The IC must be powered...
The starter circuit shown in the figure was found in an old European documentation. The circuit makes...
With a touch of a sensor, it is possible to turn on or off incandescent lamps. The circuit must...