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Valve trombone.
Technical description: Silver-plated brass; valve loop tubing directed backwards for better balance; French bell rim; joint between sections with cylindrical tenon on valve section and ligature restraint on bell section. Dummy tubing where actual windway passes through valve cluster. Cranked bell stay. With alternative slide for low pitch and tuning-slide extension for B?; gradation on 3rd valve tuning-slide.With water-key and fitting for music-card holder.; Nominal pitch: C|/|B?.; ; ; ; ; Usable pitch: With shorter tuning-slide probably built for use at A?=|452.4|Hz (in C, or in B? with extension); with longer tuning-slide probably built for use at A?=|435|Hz.;
- Date:
Circa 1925 - Maker:
Charles Gerard Conn. - Collection:
Royal Conservatoire of Scotland - Inventory number:
Loading... - Place of production:
Elkhart. - Hornbostel-Sachs classification:423.233.2
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- Inscriptions:Stamped on bell "MADE BY / C.G.|CONN Ltd. / ELKHART / IND." / on 2nd valve casing "162410" and "PATENTED"; on each valve below balusters and on piston spring drum "1", "2", "3"; and on each valve piston spring drum "162410" .
- Hornbostel-Sachs category:423.233.2
- Repository:Royal Conservatoire of Scotland
- Measurements:Overall size: from front bow guard to bell bow (shorter tuning-slide), 920; bell 177.; Sounding length: minima with high pitch slide 2328, with low pitch slide 2432, with high pitch slide and B? extension 2596.; Bore: mouthpipe at c|40mm from mouthpiece receiver (minimum bore) 10.0; main tuning-slide from mm to mm from mouthpiece receiver (shorter tuning-slide), m.t.s. bore 11.8; valve cluster from 960mm to 1054mm from mouthpiece receiver (with shorter tuning-slide), v.t.s. bore (3,2,1) 11.8; at 1164mm from bell end, 11.8; at c|589mm from bell end, 16.7; at 29.15mm from bell end, 95.3.B|=|0.64 (with shorter tuning-slide).Bell cutoff |1000|Hz.Dia of mouthpiece receiver: m.r.t. 12.1 - 11.0.