Posted by Jay Bertolet on August 01, 2000 at 21:50:10:
In Reply to: Linkage replacement posted by Keith C. on August 01, 2000 at 21:13:33:
Email me privately about your question, one of my students is performing this same operation on his tuba next week with my assistance. The parts are easily obtainable, relatively inexpensive, and the procedure is fairly simple and requires a minimum of tools.