We found this circuit in a 1967’s Electronics World. The circuit can be made with modern equivalent transistors. The selection is made by the tuned coil.
This circuit uses a common diode as sensor. The output goes from 0 to 10 V with the temperature change in...
The circuit presented was suggested by the National Semiconductor's Linear Applications Handbook of...
This circuit was found in a 1966’s NASA documentation. The circuit shows how to use thermistors...