Electronics Dice 4017 (CB26047E)

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

Crystal Controlled Multivibrator (CB23783E)
Using transistors of the time, this circuit was published in Radio Electronics magazine in...
DC Motor Speed Regulator (CB19406E
) The integrated circuit used in this control is uncommon today and the maximum current obtained allows...
Ultra precision voltage to frequency converter (CB20835E)
We found this circuit in an old American documentation. Accuracy has 0.02% error and 0.003%...