Electronics Dice 4017 (CB26047E)

This circuit was found in the May 1998 issue of Electronics Now magazine. The circuit drives a set of LEDs.

Precision analog multiplier (CB7393E)
Found in Linear Technology documentation from the 1980s, this circuit has an accuracy of 0.01%....
Electronic ear (CB21671E)
This amplifier circuit for listening was found in a book by Hugo Gernsback from 1960. The...
LM320 Current Regulator (CB1201E)
This circuit is from a current regulator up to 1 A, ie a constant current source. The LM320...