Monostable 4098 (CIR25124E)

This CMOS circuit is re-triggerable. It was found in the April 1988 issue of Radio Electronics magazine;

Audio Limiter (CB948E)
We got this circuit in a publication of 1987. This is an audio limiter, a circuit that cuts peaks...
Active Tone Control (CB25701E)
This circuit was obtained from the March 1994 Electronics Now magazine. The circuit uses a common...
Shadow Activated Trigger 555 (CB25529E)
This fast-acting circuit uses a 555. We found it in the November 1992 Radio Electronics magazine. The...