This two-tone decoder has a bandwidth of 24%. The circuit is from a 1994 Electronics Now. The components without the value determine the recognized frequency.
The components used in this 80's circuit are uncommon today. The circuit is intended for...
The purpose of this circuit is to produce a quick discharge on a shorted battery to attempt its...
We find this vibrato configuration with transistors in a 1987 documentation. The components are still...