This circuit fires with the noise captured by the touch of a sensor. Signal shapes are given next to the diagram. The circuit is from the 80s, using components from that time.
In this phase shift circuit, the transistor can be any general-purpose transistor. The circuit is from...
This simple circuit was obtained from Popular Electronics in December 1990. The magazine no longer...
This circuit was found in an old American documentation. Its purpose is a proportional scanning signal...