🚀 go-pugleaf

>...  Is there some way I can use the European 50 Hz/220 VAC power
>grid to set up my own little Ameri-friendly power grid?

You probably should look at a UPS.  The good ones take the input power,
convert it to DC, and then float off of batteries to a 60Hz inverter.  I
doubt that the UPS would care what the input frequency was, as long as there
was power there.  (They might look for a failure by timing the input
waveform and looking for missing half-cycles, but 50Hz should be close
enough to keep them happy.)

Of course this is not going to be cheap, but you probably expected that...

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Gordon S. Hlavenka                 cgordon@vpnet.chi.il.us
Disclaimer: He's lying