This powerful pushbutton uses a power MOSFET. We found it in a Popular Electronics magazine from the 90s. The MOSFET must be mounted on a heat sink.
This circuit was obtained from the 1976 Siemens Integrated Circuits Manual. It is the circuit for...
The circuit is a multivibrator version using two NPN general purpose transistor. This circuit can...
The sensor of this circuit is a thermistor of the same value as the adjustment circuit formed by...