Posted by Fred Youg on March 28, 2001 at 17:54:19:
In Reply to: Cutting a compensating horn posted by Anthony Labelle on March 28, 2001 at 15:37:14:
You must cut of 12.25 percent of the length of each slide. This would be easy on all 6 valve slides but might present problems on the tuning slide. Some of the main tapered tubing might have to be cut out and it is hard to predict what would happen when that is done. When Phil Catelinet had the F tuba made on which he premiered the R. V. Williams Cocerto it was made with parts from Eb and BBb tubas. It was not satisfactory and he had to have new parts made.
It might be better to buy a compensating F tuba from Boosey & Hawkes, Alexander, Hirshbrunner or Gronitz.