Datasheet of We found this circuit in the 1982 SGS Linear Integrated Circuits manual. A | table gives the obtained voltages, remembering that the output current is low. The circuit can be powered by voltages from 8 to 16 V with outputs from 19 to 43 V.
This circuit triggers a relay when the detected humidity falls below a value. The system can be...
We found this circuit in an old General Electric documentation. In fact, PUTs are not common...
This alarm circuit was found in a 1997 publication. It uses two reed-switches to arm and disarm the...