David Kastrup:
...
There is a reason you'll find no pipe organ these
days that will work
when electricity fails. In times before electrification, bellows duty
was hard work.
...
There are still pipe organs that you can manully power.
We have one here in Börstil, and yes I have tried it in 2008.
Here are some random pictures from that day:
http://aspodata.se/tmp/organ/
Regards,
/Karl Hammar