Yeah, I do. Down in my basement. I think it's a 5515, but I'd have to
get up and go downstairs to be sure. (Too lazy at the moment.) Might
even have a few ribbons. Can't believe anyone wants such an antique. I
think I bought it in 1978.
Only problem is that I dropped it once moving it. And since I no
longer have a computer that can run it, I have no way to test it to
see if it caused any real damage.
The first machine to use this arrangement was the IBM Selectric
typewriter, which used a "golf ball." The ball spun around and was
pressed against the paper.
Diablos used a wheel. It was circular, with "petals," each of which
ended in a different letter. Instead of pressing the whole wheel
against the paper, just the individual petal was struck against the
paper.
The NEC spinwriter used "thimbles," which were identical to the
wheels, except that the "petals" were bent upward forming a cup
(thimble).
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