the moniker "Modified Sine Wave" is a misleading term, and should be
changed to "Modified Square Wave"

I would prefer "stepped sine wave". But I can accept the term "modified
sine wave" as marketing speak that has been on lots of UPS boxes for 20
years. (UPS itself being inaccurate for a standby power source.)

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Clarence A Dold - Hidden Valley (Lake County) CA USA 38.8,-122.5