Monostable 4047 (CB25123E)

This re-triggerable circuit was found in the April 1988 Radio Electronics magazine. Timings are given by R1 and C1.

Linear Sawtooth Generator (CB25678E)
Based on a unijunction transistor, this circuit was found in the January 1994 issue of Electronics Now...
Dwell Meter (CB4961E)
This circuit is from the time when cars used contact breakers. This 80's version measures the dwell...
Astable Duty Cycle (CB25655E)
This variable duty cycle circuit was found in the December 1993 issue of Electronics Now magazine. The...