This 9-pixel circuit has been implemented with 9 LDRs and can be coupled to a processing system for an elementary artificial eye. The circuit is from Radio Electronics, November 1986.
This circuit emits a warning sound when night falls. The circuit is from a Hands On Electronics from...
This circuit is from an April 2000 Poptronics. The magazine no longer exists, but the circuit can...
This separator filter is from an old publication. The capacitor can have 10 to 47 uF of the...