The circuit is from 80s Siliconix documentation. The integrated circuit is from the company and is not common today. It can be used operational equivalent more common in our times.
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...