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Location DB > United States > Pennsylvania > Philadelphia > Convention Hall > First trips > FH030034.jpg 41 / 67   FH030034.jpg Description Controls Return to Main Location Page Return to Gallery Overview Edit this Gallery Edit this Picture Un-Subscribe this Picture Comments Posted by coolied 4/12/2008 12:15 AM | remove   the wooden shutters are pneumatic, and serve as the 'volume control' for the organ, opening to allow more sound to escape the organ chamber (pipe room); all of this is powered by a large blower usually in the basement........ sort of a turbine with a large AC motor turning it......... and (if I remember right) approximately a 5 inch air line running out of it............. If you'd like to add a comment, please login or register. All content and images copyright © 2002-2024 UER.CA and respective creators. Graphical Design by Crossfire. To contact webmaster, or click to email with problems or other questions about this site: UER CONTACT View Terms of Service | View Privacy Policy | Server colocation provided by Beanfield This page was generated for you in 343 milliseconds. Since June 23, 2002, a total of 740633941 pages have been generated.