On Sat, 18 Aug 2012, SPC wrote:
  Hi. One friend told me yesterday that he has one
Selectric in working
 state available for me. Can this machine be converted in one Terminal
 Typewriter ? Thanks. 
An "I/O" Selectric is reasonable, but a bit of work.
An office Selectric or a home selectric can be done, but is not worth the
effort.  You can do it with a box of solenoids sitting under the keyboard
(vintage Escon), or a box of solenoids sitting 0on top of the keyboard
(Dynatyper or kgs-80)