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Bi-metallic Expansion Problems With Hoyt Metal
By Don Pole 

I wondered when the expansion properties of bi-metallic Hoyt metal would
be mentioned.  In a recent organ installation a set of old Hoyt metal
pipes needed the upper lips all straightened to get back onto proper
speech.  Our voicer had seen this on other occasions, and assumed it
was a bi-metallic problem.

Don Pole

Key Words in Subject:  Bi-metallic, Expansion, Hoyt, Metal, Problems
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