Inner tube diameter

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Bassbonechandler
Posts: 211
Joined: Jul 07, 2018

by Bassbonechandler »

Hi all,

Does anyone know on a greenhoe (or similar instrument with large rotary valves) where the tubing is .562 vs .594 (or whatever size it is)?
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tbonesullivan
Posts: 1959
Joined: Jul 02, 2019

by tbonesullivan »

On which horn? Usually the bore is consistent through the slide, and into the valve tubing, which is usually overbored. The trombone is a cylindrical bore instrument, so it only really expands in areas like the goose neck, tuning slide, and bell flare.
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Bassbonechandler
Posts: 211
Joined: Jul 07, 2018

by Bassbonechandler »

[quote="tbonesullivan"]On which horn? Usually the bore is consistent through the slide, and into the valve tubing, which is usually overbored. The trombone is a cylindrical bore instrument, so it only really expands in areas like the goose neck, tuning slide, and bell flare.[/quote]

Sorry forgot to mention. A bass trombone with tis. Are the tuning slides for the valves normally .594?
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Burgerbob
Posts: 6327
Joined: Apr 23, 2018

by Burgerbob »

Yes.