Learn how to test a transformer: insulation resistance, TTR, winding resistance, polarity, continuity, and dielectric checks.

Not knowing how to troubleshoot electrical issues is a death sentence for any DIYer’s bank account. Your only other option is a wild goose chase by throwing money at your car until the problem’s fixed ...

Hi -<BR><BR>I purchased a new home from a builder and had the media room pre-wired for 7.1 surround sound audio. The home comes with a 1-year home builder's warranty, followed by the 9-year third ...