We found this circuit in 1964 General Electric documentation. The circuit works with mechanical drive and can be adapted to operate as a didactic shield sensor.
We found this circuit in the August 1994 issue of Electronics Now. The 4046 is unusual today. The...
This signal conditioner humidity sensor was found in a 1980s Linear Technology documentation. The circuit...
The battery is charged by the photocell that keeps the low consumption beacon in the dark. The...