This basic relay configuration was found in a July 1994 Electronics Now. The relay is supposed to be sensitive, and the times are changed by changing C1.
This constant current source is from the LM11's own factory manual used in the application. The circuit is...
The purpose of this circuit is to detect whether a coil has shorted turns. The coil must be fitted...
This medium wave radio must use a high impedance piezoelectric, crystal or magnetic phone and the...