Monostable 4098 (CIR25124E)

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

4W x 500kHz transmitter (CB21803E)
We found this 4W transmitter in a Mullard transistor manual from 1960. The circuit is powered by...
Treble Booster (CB12010E)
The response curve of this circuit has a maximum boost of around 6 kHz. The vertical scale is in...
Audible Indicator for Car (CB26291E)
Using the 555 this circuit was found in a Popular Electronics from the 90's. The circuit directly...