UEDIN · 3257
Bass trumpet. Nominal pitch: 9-ft B♭.
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Description
Technical description: Nickel-plated brass; three coils. Valve type: 3 Périnet valves; top sprung. Overall size: 575; bell 150. Sounding length: minimum 2780. Bore: at 37mm from mouthpiece receiver (minimum bore), 8.85; distance to m.t.s. c 310, m.t.s. bore 11.75 - 12.2; v.t.s. bore (1,2,3) 12.2; at 1390mm from bell end, c 12.2; at c 494mm from bell end, 17.25; at 22.8mm from bell end, 95.5. B = 0.61. Bell cutoff = 900 Hz. Dia of mouthpiece receiver: m.r.t. 11.2 - 10.1. Inscribed on bell "C.G. CONN LTD / U.S.A. / ELKHART-IND."; on sides of valve housings "1", "2", "3"; on side of 2nd valve housing "272860". Decorative features: Art-deco style bell engraving. Usable pitch: A⁴ = 435-439 Hz. With fitted case, not original. Purchased by lender with and possibly formerly used with mouthpiece (3258).
Measurements
575; bell 150.