This simple Morse Code oscillator was found in a 1980s American documentation. The power supply should be powered with 5V and the integrated can be the 7400.
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...