This old circuit, from the 80's, uses an integrated circuit that is uncommon today. The circuit is intended for loads controlled by triac and the resistors depend on the desired control.
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...