Ended up with a completely anachronistic skill, but there's so much that you can get out of doing this kind of apparently pointless repair work.
“As with other electric typewriters and electric adding machines of the era, Selectrics are electromechanical, not electronic, devices: the only electrical components are the cord, an on-off switch, and the motor. The keys are not electrical pushbuttons such as those found on a computer keyboard. Pressing a key does not produce an electrical signal as output, but rather engages a series of clutches which couple the motor power to the mechanism to turn and tilt the element. A Selectric would work equally well if hand-cranked (or foot-powered, like treadle powered sewing machines) at sufficient speed.”
KGB tracked them down for way less than ransom notes.
This looks like a fun excuse to get one.