Getzen CB-50 fifth valve questions

tylerferris1213 · Post by **tylerferris1213** » Tue Jan 29, 2013 12:11 am

I just recently bought the aforementioned tuba. When playing it, I noticed that the fifth valve did not lower the pitch by a flat whole step like I would expect it to. Instead, it raised the pitch from Bb to C. What was the purpose of installing a valve that raises the pitch of the horn? Also, is there a way to reverse the valve so that open is C and the fifth valve lowers the pitch a flat whole step? I would prefer it to play as a CC tuba.

Dan Schultz · Post by **Dan Schultz** » Tue Jan 29, 2013 12:14 am

Are you certain the rotor isn't linked backwards?

pjv · Post by **pjv** » Tue Jan 29, 2013 4:41 am

Dillon's is selling a Getzen GB-50 right now. I mention it because in the description Matt says "Can be converted to a BBb tuba by changing the position of the rotor stop arm".

I believe this probably answers your question. I wouldn't be surprised if Getzen made it so that the player could change the stop-arm themself. This is pure speculation.

Good luck

tylerferris1213 · Post by **tylerferris1213** » Tue Jan 29, 2013 3:57 pm

Those are all good answers. How difficult would it be to switch it back to a CC? Is this something I should take to a professional? If so, are there any people who do great work in the NW Ohio region?

Lectron · Post by **Lectron** » Thu Jan 31, 2013 7:52 am

DP wrote:...and...WALA!

the elephant wrote: You mean voila? (Note, that is voila and not viola. I doubt that anyone has ever used voila and viola in the same thought, except to say, "Et voila! My viola, she burns so brightly!")

Where's an elephant when you need one......

ibr · Post by **ibr** » Thu Jan 31, 2013 8:41 am

I've never seem a tuba with this configuration. Does it has a compensating system?

tylerferris1213 · Post by **tylerferris1213** » Thu Jan 31, 2013 10:01 am

There is no compensation system. I did take off the stop arm and then proceeded to rotate the valve 90%. It is back into the key of CC now. Thanks everyone!

Bob Kolada · Post by **Bob Kolada** » Thu Jan 31, 2013 3:10 pm

How does the, apparently someday rare, Bb "CB-50" compare to the stock C and the C in Bb? Hell, anyone here ever play one?

EdFirth · Post by **EdFirth** » Thu Jan 31, 2013 3:29 pm

I kinda suspect that it is an original C that had the rotor moved to the Bb side. From what I know they didn't offer it in Bb.Ed

srawleigh · Post by **srawleigh** » Thu Jan 31, 2013 4:49 pm

If any of you guys are interested in one, i am currently selling CB50 (check the for sale section). It's been a great 4/4 all around horn for me. I'm just in need of a larger CC right now and don't have enough money to afford keeping it around.

Lee Stofer · Post by **Lee Stofer** » Thu Jan 31, 2013 6:13 pm

When I acquired the Getzen G-50 parts from Getzen this past Fall, I also acquired some other parts, and besides the tech/build sheets for the G-50, there are three additional pages or so, addenda for the G-52 BBb tuba. I had never heard of the G-52, and do not know how many BBb's were built, if any, but it would be possible to do so.

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Getzen CB-50 fifth valve questions

Getzen CB-50 fifth valve questions

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