I have recently bought a large Kaiser four rotor BBb very cheap, there is no makers name of serial number, but it is a bit of a monster and blows freely through the harmonic series. The problem is the reason it was cheap - there is no valve operating mechanism. Is it possible to buy a mechanism to ...

Sounds like you've got a Besson Sovereignty 994 a giant in size and sound, they are the instrument of choice for the ultimate contra bass in British Brass Bands

I switch between CC EEb, Bass Trombone & Euphonium (even on occasion electric bass) - I suspect this more about finding the instrument ob which you are most proficient to solve the musical problems, and then the technical problems become easier. I do use my trombone study books to practise tuba and ...

I bought my 984 ex demo from Phil Parkers in London just over a year ago, I still think it is the hest tuba I have ever played.