Identified through online information from James R. Stettner. -- This was a redesign of the wind system to alleviate the problem of sagging wind. The original schwimmers utilized a little interior curtain valve which was constantly going out of adjustment or breaking and causing the pipes to be starved for wind. The Pedal 16' Subbass pipes had no independent source of regulation...being winded from the Great chest. New OSI schwimmers were installed with pantograph assemblies. And the Pedal 16' Subbass was provided with a used regulator of its own to stabilize the wind.
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