Recent content by westom

First, your symptoms demonstrate why different grounds must exist. A better designed board would have an analog ground and a digital ground. Both meet at a common point where DC voltages are provided. And both would be electrically different. And those grounds would be different from its...

Safety ground at an appliance or protector is completely irrelevant. Surge protection is always about another electrically different ground. Protection is always about where hundreds of thousands of joules harmlessly dissipate - in earth ground. Two wires or three are simply two or three...

A surge protector says on its box that it ignores any 120 VAC voltage that is below 330 volts. How often is your 120 VAC rising to well above 330 volts? Never? Then why would anyone recommend a surge protector? If a major appliance is causing a voltage drop, then what did anyone here expect...