Without an isolation transformer, you can do a lot with a battery-powered (non-grounded) multimeter. Plug the TPS device into an extension cord with a switch, and keep that switch off as much of ...
GTP-InfiniteX Series has an inbuilt isolation transformer, that delivers superior power protection, enhancing system ...
Rather than shelling out $70 or more for something like a Hammond 269EX, [Terry]’s suggestion is to modify an isolation transformer, specifically the Triad N-68X. The transformer has a primary ...