Electrical Projects A power supply was once considered a convenience. Today it is almost a necessity since the utility companies cannot seem to keep up with demand. Some experts in the field believe that the country will suffer periodic "brownouts" until the turn of the century when hundreds of fission plants will come on the line. In addition to providing adequate voltage, many power supplies offer some protection against severe electroshock. Output is limited by the transformer's windings.

August 20, 2008