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Bass valve trombone
Nominal pitch: G. Technical description: Brass. With cylindrical tenon on bell section and ligature restraining screw on valve section at joint. With main tuning-slides in body and in bell. Two water-keys, on bottom bow and on 3rd valve tuning-slide bow. With fitting for music-card holder.3 Périnet valves, bottom-sprung, alignment by screw through casing engaging with channel in piston. Playing accessories: shank with tenon which when inserted in mouthpiece receiver adds 50mm to sounding length (probably not original). Usable pitch: Probably built for use at A₄=|452.4|Hz.
- Date:
1856–1858 - Maker:
Antoine Courtois [Corporation] - Collection:
Royal Conservatoire of Scotland - Inventory number:
Loading... - Place of production:
Paris (Timezone: Europe/Paris) - Hornbostel-Sachs classification:423.233.2 Valve trumpets with long air column (more than 2 m)
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- Decorative elements:embellished stay ends and sheaths, and ferrule on bell.
- Inscriptions:Stamped on bell with circle containing "MÉDAILLE / DE / 1RE CLASSE / EXPOSITION / UNIVERSELLE / 1855" / "APPROVED BY / Hermann Koenig / ANTOINE COURTOIS /Brevete / FACTEUR DU CONSERVATOIRE IMPÉRIAL / 88, rue des Marais St. Martin / CI-DEVANT RUE DU CAIRE / Paris / JULLIEN & Co. / Sole agents / 214 Regent St London".
- Hornbostel-Sachs category:423.233.2 Valve trumpets with long air column (more than 2 m)
- Repository:Royal Conservatoire of Scotland
- Measurements:Overall size: from bow to bow 1025; bell 203. Sounding length: minimum 3126. Bore: at c|30mm from mouthpiece receiver (minimum bore), 11.55; main tuning-slide from 1243mm to 1541mm from mouthpiece receiver, m.t.s. bore estimated 12.95; valve cluster from 1661mm to 1761mm from mouthpiece receiver, v.t.s. bore 12.95; main tuning-slide from 1133mm to 550mm from bell end, m.t.s. bores estimated 13.7 - 16.7; at c|550mm from bell end, 18.3; at 34.5mm from bell end, 104.5.<i>B</i>|=|0.73.Bell cutoff |900|Hz.Dia of mouthpiece receiver: m.r.t. 12.2 - 11.55.