Electronics Dice 4017 (CB26047E)

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

High Impedance Sensor (CB19555E)
This JFET sensor was found in a 1989 publication. Virtually any FET like the BF245 can be used and the...
1kHz Double T Oscillator (CB10957E)
This circuit came out in a Popular Electronics from December 1995. It is a double T configuration that...
Light Detector (CB19923E)
The integrated circuit used in this application is not currently common and the sensor can be any...