Found in National Semiconductor documentation from the 1990s, this circuit corrects the curvature of the response curve of an RTD temperature sensor. The components used are from that time.
This circuit activates a relay when the water reaches the sensors. The circuit is from a magazine...
The noise comes from the PN junction of a common silicon diode. Since no gain is given by the...
We have here an interesting audio preamplifier, which can be useful to those who are looking to...