DescriptionTechnical description: Silver-plated brass; compact layout. Valve type: 3 rotary valves, with cork buffers mounted on top caps.
Overall size: 251; bell 91
Sounding length: minimum 1357; overall length of shank 58.3.
Bore: mouthpipe at c 40mm from mouthpiece receiver (minimum bore) 10.1; centre of valve cluster at c 116mm from mouthpiece receiver, v.t.s. bore (1, 2, 3) 1.2; m.t.s. at c 388mm from mouthpiece receiver, tuning-slide bore 10.2; at 678mm from bell end, c 10.15; at c 247mm from bell end, 14.35; at 9.5mm from bell end, 60.7. B = 0.78. Bell cutoff = 1800 Hz.
Dia of mouthpiece receiver: Shank internal taper 9.7 - 9.1, external 'taper' 10.3 (not tapered); mouthpiece/shank receiver taper 10.4 - 10.1 (hardly a taper).
Performance characteristics: trumpet-like tone quality.
Usable pitch: Plays in B♭ 60 cents below A⁴ 440 Hz, tuning-slide allows use at A and A♭; possibly intended to be in B♭ at Diapason Normal.
Purchased by lender with mouthpiece (1164) |