The two circuits shown show how to obtain an SSB / CW control for receiving this signal top at a common receiver. The circuits were found in an old American manual from the 80's.
This circuit deactivates devices powered by the power grid so that when the power returns, they do...
We found this circuit in a 1998 publication. It drives an incandescent lamp for a time that...
This tachometer from a 1994 publication has a bargraph scale with the well-known LM3914 integrated...