This circuit with a maximum current of 50 mA was found in the August 1998 issue of Electronics Now magazine. The integrated circuit used is not very common today.
This circuit can also be used as a shield if the excitation is made with 5 V and the output stage...
This type of sensor was used in sensitive infrared systems from the 1960s. This circuit was found...
We find this circuit in a documentation for engineers from 1971. The circuit generates rectangular and...