Using a 4046 PLL we found this circuit in the December 1989 issue of Radio Electronics magazine. The circuit operates at 220kHz, but this frequency can be changed by changing C3.
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...