Posted by Jon Hagen on November 11, 2012 at 14:21:35 from (22.214.171.124):
In Reply to: inverter watts posted by craigco on November 11, 2012 at 04:45:21:
All this talk of solid state inverters sometimes not being quite right for some battery chargers, got me thinking about a device I saw 20-30 years ago.
At a construction equippment shop, they had a little motor-generator unit that had a 12VDC motor and a 120VAC generator combined in the same case. I seem to remember it being about 5 inch diameter and 2 ft long, DC stud terminals at one end and a 120V duplex at the other end. A yellow tube laying on it's side on 4 little legs. The thing being a generator, should have produced "real" sine wave power ? I don't know if the thing had any sort of speed contro; on the DC motor to try to maintain correct 60 cycle speed. A quick Google search does not show anything like that avalible now. Anyone know if they are still being made ??
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