Yamaha Model No. |
Approximate Size Equivalent |
---|---|
64 | Bach 25, smaller rim diameter |
65 | Bach 25 |
66B | Schilke Helleberg, shallower cup |
66 | Schilke Helleberg |
66D4 | Bach 24AW |
67B4 | Miraphone C3, shallower cup (For F tuba) |
67 | Bach 22 |
67C4 | Miraphone C3 |
68B | Schilke 69C4 |