This circuit was found in an American 1980s documentation. The transistorized step is the receiver's last IF and the diode is the receiver's existing detector.
This circuit was found in a 1992 Electronics Hobbyst Handbook. The circuit is for the 110 V power...
The TBA810 integrated circuit is no longer common today. This circuit shows an application of this...
This soft starter dimmer was found in a 1980s documentation. We can implement it with current...