Way back in the mid 70s, I picked up a keyboard that someone told me was
from a Spectrola, but it was all electronic. EBCDIC, with a big diode
matrix, George Risk sealed key switches, and a few Fairchild ICs (DTL, I
think, but it's been a long time.)
I don't know what it went to, but it definitely wasn't IBM. It was lost
in a move...
--Chuck