Jim Dunmyer wrote in a message to Roy J. Tellason:
 > I was browsing this catalog offering inverters,  and saw mention in 
 > there that some stuff will run on just about any type,  some stuff 
 > wants a modified sine wave at least,  and some wants a "pure" sine 
 > wave.  I can't find the reference in that catalog at the moment.
 > 
 > Can somebody run down what sort of stuff is fussy about its power,  
 > and perhaps why?  Some of the things on that list were rather 
 JD> Roy,
 JD>  Analog power supplys (modem wall-warts, etc.) like either
 JD> pure sine-wave power or at least modified sine-wave. 
Hmm,  I wouldn't have thought that they would be that fussy.  I guess it's 
the transformers?
 JD> Square waves are OK for switching power supplies as in 
 JD> computers. Some stuff is really fussy, and will overheat with 
 JD> anything less than pure sine wave; I'd suspect that motors 
 JD> would be in that catagory. 
Motors?  Why is that?
email: roy.j.tellason%tanstaaf@frackit.com 
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