>I attended a church with a modestly-sized electronic (non-pipe) organ built in 1980. There was a praise band with drums, guitar, bass, and a very shiny grand piano. The organ had fallen into disuse and it was unclear whether it could be played. We limped along with that lovely piano for a long time, but the organ was finally rescued.

I once got roped into trying to fix an electronic organ that was about the same age, in a church. Some of the notes had stopped playing, or were the wrong pitch, so the organist had to work around them. It was a really interesting piece of analog electronics, with a bunch of separate circuit boards for each note, with an analog circuit on each one to generate the tone. IIRC, I found that some capacitors' values had drifted due to age, so I replaced a bunch of them with new ones; the organist was so happy she could now use those notes again.