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 is from an October 1963 Radio Electroncs. It uses a single 2N18383 transistor and a...
We found this circuit in a 1972 RCA technical documentation. The comparator can be any type and C1...
Found in a 1970 EEE this circuit emulates a zener diode whose voltage can be set to R2. Power...