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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 fit myself?, where might I find such a thing. I'm in the UK but will import if that's the only eay to resurrect thus monster.

Jürgen Voigt in Germany sells that sort of stuff. You would have to have a local shop order it for you. Excellent quality.

Wade

https://shop.voigt-brass.de/en/B2B/CATA ... talog.html

Yes to Mr. Wade's information...and/but these are any thing but generic, so the shop is going to need to send that manufacturer a bunch of very specific carefully ascertained dimensional measurements.

I would recommend contacting Mike Johnson
https://m-j-c.co.uk/