Monostable 4098 (CIR25124E)

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

Antenna Switch using Diodes (CB4156E)
We find this circuit in a 1980s documentation for amateur radio. The circuit shows how to switch...
Signal Injector and Tracer (CB3917E)
This signal injector and tracer (follower) was found in an old American documentation. The...
Voltoscope (CB10689E)
This circuit was found in a 1966 publication. Its purpose is to identify high voltages by lighting a...