I had a similar situation in that I found an Electra 120, which I assume is just a little bit older than the 220. Several of the typebars were disconnected and it was a pretty big pain to reattach them, but once that was done it works very well. I also prefer the touch of a manual, but that electric assistance is really nice transition for those used to typing on computers since there's pretty much no effort involved and all the keys are on the same level as opposed to the typical "levels" on manuals.
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1937 Royal Model O Portable, 1949 Underwood Champion, 1954 Olympia SM-3, 1955 Royal Quiet De Luxe, 1957 Hermes Rocket, 1957 Imperial De Luxe 5, 1959 Smith-Corona Sterling, 1963 Olivetti Studio 44, 1963 Olympia SM-7, 1968 Olympia SG-3, 196X Smith-Corona Electra 120