In figure 1 we have a circuit that turns on after a certain time and then turns off, also after a second interval.
This simple SCR delay circuit for activating a relay was found in documentation from the 1980s. The...
This circuit was found in a 73 magazine for radio amateurs of the 90s. The circuit uses two types...
This FM detector circuit was found in a 1977 documentation. The circuit uses a 1977 Signetics...