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Switching rotors?

Postby TheTuba » Sat May 12, 2018 9:46 am

Lets take a PT-6 for example. Can you take out the rotors, and install new rotors (Miraphones)? What complications would arise?
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Re: Switching rotors?

Postby the elephant » Sat May 12, 2018 10:23 am

No, they won't fit. Even brand new replacement PT-6 rotors won't fit correctly until you do a bit of work to lap them into the old casings.
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Re: Switching rotors?

Postby joh_tuba » Sun May 13, 2018 7:16 pm

Also, the shape of Miraphone rotors have changed over the years.
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Re: Switching rotors?

Postby bloke » Sun May 13, 2018 10:07 pm

...or IS he referring to un-soldering and swapping out complete rotor ASSEMBLIES?

Nearly-air-tight is "good".
Quite leaky is ...well... "different"...Hey...Slurring is easier. :shock: 8)
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Re: Switching rotors?

Postby bigboymusic » Mon May 14, 2018 11:04 am

I assumed he meant replacing the entire assembly... I would think that would be an interesting change in feel, but maybe pretty good???
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Re: Switching rotors?

Postby joh_tuba » Mon May 14, 2018 11:37 am

If I were intent upon replacing an entire rotor assembly for the purpose of an upgrade I would purchase the carbon fiber meinlschmidt valves.
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Re: Switching rotors?

Postby bort » Mon May 14, 2018 11:55 am

joh_tuba wrote:If I were intent upon replacing an entire rotor assembly for the purpose of an upgrade I would purchase the carbon fiber meinlschmidt valves.


My understanding is that their carbon fiber valves are about 3x the cost of the normal valves.

That'd better be a heck of a tuba to make this kind of upgrade, instead of just buying a new tuba.
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