Conn 88HCL Christian Lindberg F-Attachment Trombone
Conn Professional Symphony F-Attachment Trombones
with Open Wrap Tubing
.547" Bore with patented CL2000 F-rotor system
.562" Bore through F-attachment
Clear Lacquer finish
8.5" Rose brass bell
Includes CG Conn mouthpiece and wood shell case
How it works:
The CL2000 rotor is a single moving part, a tapered cylinder that rotates on a fixed axis. Inside the cylinder are two airways side by side. The air channels are formed by one straight tube gently curved at each end adjacent to a second straight tube that features a Y branch to divert the air column. When closed, the straight section of the Y tube lets air flow directly from the handslide to the bell while the other tube is shut off from the F section. When engaged, the Y tube funnels air from the handslide into the F section of tubing. The air then flows through the second passageway and into the bell section.