Conn 24H
Bb small-bore tenor trombone · professional · vintage
"Ballroom" small-bore tenor (same .485 bore as the 4H); light, agile dance/jazz voice.
| Type | tenor |
|---|---|
| Key | Bb |
| Bore class | small |
| Bore size | .485″ |
| Valve configuration | Straight (no valve) |
| Bell diameter | 7″ |
| Bell material | yellow brass |
| Slide | silver-plated handslide |
| Finish | silver plate |
| Level | professional |
| Era | vintage |
| Country | USA |
| Years | 1928–mid-1930s Elkhart |
Features: Bell set back slightly from normal position — designed to speed mute changes in ballroom settings.