This circuit can be used to generate percussion sounds such as bell, triangle, etc. The circuit must be powered by symmetrical source and the triggering is by external pulse.
This filter was found in Delco's 1965 documentation. It can be implemented with modern components...
This 100 second timer was found in the September 1992 issue of Radio Electronics magazine. The...
We found this circuit in a Popular Electronics from the 90's. The circuit uses three SCRs to...