Bach 42AF
Bb/F large-bore tenor trombone · professional · current
Large-bore orchestral tenor with Bach Infinity axial-flow valve; open blow with sealed-bearing valve
| Type | tenor |
|---|---|
| Key | Bb/F |
| Bore class | large |
| Bore size | .547″ |
| Valve configuration | F attachment |
| Valves | 1 |
| Rotor type | axial-flow (Thayer) |
| Wrap | open wrap |
| Bell diameter | 8.5″ |
| Bell material | yellow brass |
| Bell construction | one-piece |
| Slide | chrome-plated nickel silver inner tubes; yellow brass outer slide |
| Finish | clear lacquer |
| Level | professional |
| Era | current |
| Country | USA (Elkhart, Indiana) |
Features: Stradivarius line; patented Infinity axial-flow valve (sealed bearings, no metal-to-metal contact); open wrap