This circuit with RTD sensor was found in the Radio Electronics magazine of April 1992. At the output we have 1 mV for each degree Celsius.
This circuit was obtained in a Hands-On Electronics from the 90's. The circuit turns on one LED at...
We found this circuit with very high input resistance in an old documentation. The circuit is still...
Suggested by General Electric in 1965 documentation, this flasher has a control circuit with a...