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Trumpet.

Technical description: Silver-plated brass; single main tuning-slide with tenon at exit from 1st valve; with three alternative detachable bells of different flares attached by a bar fixed to the valve cluster engaging with a trough on each bell; two screw-down restraints on each bell, at tuning-slide and at trough.; Nominal pitch: E?.; Type or system: 4 valves, interchangeable bell.; ; ; ; Usable pitch: Probably built for use at A?=|440|Hz.; Performance characteristics: According to John Wallace, good for chamber music - a heavy instrument.

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  • Inscriptions:Inscribed on 2nd valve "YTR 9630X / 981004"; stamped on mouthpiece receiver "YAMAHA MADE IN / JAPAN"; not stamped on outer tuning-slide of bell (912a); stamped on outer tuning-slide of bell (912b) "GC" (according to John Wallace, mis-stamp for "CC"); stamped on outer tuning-slide of bell (912c) "A".
  • Hornbostel-Sachs category:423.233.1 Valve trumpets with short air column (less than 2 m)
  • Repository:Royal Conservatoire of Scotland
  • Measurements:Overall size: from plane of bell to mouthpiece receiver 464 (bell 912a); bell 125.5 (bell 912a), 121 (bells 912b and 912c).; Sounding length: minimum 968 (bells 912a, 912b, 912c).; Bore: mouthpipe at c|30mm from mouthpiece receiver (minimum bore) 8.75; valve cluster from 240mm to 389mm from mouthpiece receiver, v.t.s. bore (4,3,2,1) 11.35; main tuning-slide from 389mm to 436mm from mouthpiece receiver, m.t.s bore 11.35;at 484mm from bell end, c|12.55 (bell 912a); at c|287mm from bell end, 17.75 (bell 912a); at 17mm from bell end, 70.5 (bell 912a);at 484mm from bell end, c|12.1 (bell 912b); at c|291mm from bell end, 17.1 (bell 912b); at 21mm from bell end, 67.5 (bell 912b);at 484mm from bell end, c|11.9 (bell 912c); at c|299mm from bell end, 16.85 (bell 912c); at 20.5mm from bell end, 68 (bell 912c).B|=|0.60 (bells 912a, 912b, 912c).Bell cutoff |1400|Hz (bell 912a), 1300|Hz (bells 912b and 912c).Dia of mouthpiece receiver: m.r.t. 11.1 - 10.15.