Found in the September 1972 issue of Radio Electronics magazine, this signal injector is based on the HEP580. The circuit is powered by two batteries and its frequency is basically given by C1.
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...