Larry Claus asked about vacuum level for a calliope in yesterday's MMD.
When I built my stack for a playerless calliope, I took the vacuum off
the inlet of the pressure pump for the whistles and got the required
20" of vacuum that I needed.
What does Larry have as a wind source?
Pete McFall
(Message sent Mon 5 Dec 2011, 21:16:14 GMT, from time zone GMT-0800.)
