ML>Yes Tom ..   
      
      
   ML> TW> The ones I am thinking about have NO switchingy. They run all the time   
   ML> TW> on the battery and the function of the line power is only for battery   
   ML> TW> charging. So NO frequency matching is not needed when line power is   
   ML> TW> restored.   
      
   ML>True.  But also be careful about one other thingee!  The good UPS stuff does   
   ML>use sine wave AC output.  However, some of these, per my recall, use triangu   
   ML>wave form output.  Or was it square wave form output?.  Been a long time bac   
   ML>can't be sure I've got this exact.  I forgot to mention that in my original   
   ML>post(age) here.  Age creeps into even postal work!   
      
   Yes one must be careful not to get a Square switching model. some   
   equipment does not do too wel powered by them.   
   At a minimum get a modified sign wave model.   
      
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    þ SLMR 2.1a þ Typo Tom Strkes Again   
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