F Tuba "FIREBIRD" F-281B, by MIRAPHONE
model 281B "Firebird"
bell diameter 400 mm (15,748 inch)
5/4
with lyre holder
with strap ring
rotary valves
bore of valve section conical 19,6 - 21,2 mm (0,772 - 0,835 inch)
spiral spring system
vented valves for pressure compensation
mouthpiece TU23
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