File talk:Trumpet valve bypass.svg
Appearance
Are there trumpet valves that have the spring at the bottom as shown in this image?--Dbolton (talk) 19:39, 3 May 2008 (UTC)
Are there trumpet valves that have the spring at the bottom as shown in this image?--Dbolton (talk) 19:39, 3 May 2008 (UTC)[reply]