Generators: Rated as 'clean power'. How can I tell and is there something to clean it

[Mark @ Everlast]

Take the average 12 VDC to 115 VAC inverter. These things produce RF energy from DC to Daylight. Just trashmasters. Just operate one, and then turn on a radio. You will find out real quick. Almost all of these devices generate square waves, NOT sine waves. Square waves are cheap and easy to generate, and by definition are BAD. At least bad for any kind of sensitive electronic device. They work fine for things without electronics as long as you don't attempt to operate a radio nearby. Sine waves are expensive and hard to generate. Follow the money.

Except when welding because squarewaves generate a lot more heat. :laughing:
I get some angry customers sometimes, because they bought a generator or some sort of converter that produces square wave so that the unit could be used with it and don't understand why a square wave output TIG can't operate on Square wave input.