Electronics Dice 4017 (CB26047E)

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

Mini Timer (CB498)
Up to some minutes intervals can be obtained from this circuit. The circuit can use a lamp (or...
Integrated FM Transmitter (CB12596E)
This FM transmitter uses an integrated circuit, not very easy to obtain UPC16451. The range is a...
Schmitt trigger with programmable hysteresis (CB10111E)
This circuit was found in an American documentation from the 70s. The operational amplifier is...