This circuit was found in a Popular Electronics from the 90s. The circuit uses common components today. The waveform of the generated signal is shown next to the diagram.
Found in a 1960s RCA documentation, this circuit applies to most common triacs. The trigger device is a...
This metal detector was found in a French magazine Radio Plans from 1977. The phone can be a...
This circuit is from a Linear Technology integrated circuit manual from the 1990s. The circuit...