Monostable 4047 (CB25123E)

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

Digitally Controlled Oscillator (CB18268E)
We can control the frequency of an oscillator from digital circuits or from the output of a...
Dimmer with triac (CB26092E)
We recommend adding a 470-ohm resistor in series with the potentiometer in this dimmer circuit...
Automatic Gain Control for Recording (CB24224E)
We found this circuit for old tape recorders in the December 1972 Radio Electronics magazine. The...