"HeyBub" wrote in message
m...
Stormin Mormon wrote:
Some inverters put out modified sine, which reads about 90
volts on a digital meter. My suggestion is try a filament
lamp of some kind, or maybe a hair dryer. Old style toaster,
is also good. If the toaster works, you're likelly getting
modified sine. And the machine is OK.

I have an ETQ which has really done a good job. Never
checked the voltages. It runs a toaster (Yes, I really did
plug in a toaster, and try it.) Also runs a furnace, guy I
knew had his power out, couple years ago. The ETQ ran his
furnace nicely.

Ah, good catch! If the generator is putting out a modified sine wave and
the
meter is measuring peak-to-peak, there's gonna be a difference.



Why would a single phase generator be putting out a square wave? I imagine
it may be somewhat fuzzy, but I think it pretty much has to be a sine wave.