Suggested to power the previous circuit, this power supply was found in the December 1990 issue of Radio Electronics magazine. Integrated circuits must be equipped with heat sinks.
This metal detector was found in a 2001 Poptronics, but it can still be easily assembled, as the...
The inversion of the switching action, with the output going high when the input is low, can be...
The circuit shown in the figure is indicated for alternative energy sources, such as those...