This circuit with a dual power supply generates sinusoidal, triangular and rectangular signals. We found it in the magazine Electronics Now of January 1996. The frequency goes up to a few megahertz.
The TSC102 integrated circuit from ST-Microelectronics consists of a current sensor system that, in...
This circuit was found in old documentation, but the transistor may be the modern equivalent BC547....
The IC used in this project is not common these days, but if you have one you can build a high...