This low-power circuit was found in the March 1990 issue of Radio Electronics magazine. It consists of a tone control solution for portable turntables.
What sets this circuit apart from the previous one is the use of only one push button. The circuit...
The filter shown in the figure, using only an operational amplifier, is characterized by allowing 1...
This circuit controls the brightness of incandescent lamps up to 400 W for the TIC226 series...