Bore: mouthpipe at c 25mm from mouthpiece receiver (minimum bore) 10.05; valves and m.t.s. tuning-slide bore at 465mm - 983 mm from mouthpiece receiver, 11.6; at c324 mm from bell end, 16.4; at 20.9mm from bell end, 69.7. B = 0.67. Bell cutoff = 1300 Hz.
work_display_measurement
Bore: mouthpipe at c 25mm from mouthpiece receiver (minimum bore) 10.05; valves and m.t.s. tuning-slide bore at 465mm - 983 mm from mouthpiece receiver, 11.6; at c324 mm from bell end, 16.4; at 20.9mm from bell end, 69.7. B = 0.67. Bell cutoff = 1300 Hz.
Measurement
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