Re: Weird 'thing'...
Usually 110-120Vdc.
I don't think the organs used electrical controls, they were driven either by an electric motor or directly by the steam engine in a Galloper set. The rest of the control system was pneumatic.
__________________
....__________
....|____||__|__\_____
.=.| _---\__|__|_---_|.
.........O..Chris....O
|