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 circuit was obtained in an old American manual. The circuit is valid for any operational. The...
This two-relay circuit gives drive logic that is clear when analyzing the circuit. In the original...
This circuit, suggested by Philips Components (1980), uses a fast voltage comparator and requires...