| My picc has a rotary valve block from a scherzer. The travel of the levers is about half the distance of travel on a piston valve - which facilitates very smooth and rapid playing. Also the passage of the air through a rotary valve is much smoother than through a piston. Each rotary valve is identical internally and all the valve slides are in the same plane as the main tube. I think this leads to less resistance (and less variation in resistance) than with a piston valve block.
__________________ Noel Langley - Eclipse Artist noel@eclipsetrumpets.com
Eclipse Medium Yellow, scratch gold
Eclipse Medium Heavy Red, custom 'Diamond Back' in 24ct gold
Eclipse Red Brass Flugel
Custom Scherzer piccolo with copper Wedgewood bell, finished in scratch gold
Giardinelli 6S, 6M, 6FL Bach 3CW |