I built a 4valves Helicon for Schleppy's ..You can see him on the TubeNet Alot. Its made out 3 Horns a body from a 38K conn sousaphone, a bell from a EEb Holton, and a valve set from a 4J BBb Conn Tuba, Here are a few Pictures ... Thanks For Look Harv. hh3valves@aol.com 610-367-7232
