This circuit is from a 1968 documentation. It makes use of thermistors (NTC) to indicate overheating of charged batteries. Modern equivalent components can be used.
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...