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Getzen CB-50 fifth valve questions
Posted: Tue Jan 29, 2013 12:11 am
by tylerferris1213
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.
Re: Getzen CB-50 fifth valve questions
Posted: Tue Jan 29, 2013 12:14 am
by Dan Schultz
Are you certain the rotor isn't linked backwards?
Re: Getzen CB-50 fifth valve questions
Posted: Tue Jan 29, 2013 4:41 am
by pjv
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
Re: Getzen CB-50 fifth valve questions
Posted: Tue Jan 29, 2013 3:57 pm
by tylerferris1213
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?
Re: Getzen CB-50 fifth valve questions
Posted: Thu Jan 31, 2013 7:52 am
by Lectron
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......
Re: Getzen CB-50 fifth valve questions
Posted: Thu Jan 31, 2013 8:41 am
by ibr
I've never seem a tuba with this configuration. Does it has a compensating system?
Re: Getzen CB-50 fifth valve questions
Posted: Thu Jan 31, 2013 10:01 am
by tylerferris1213
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!
Re: Getzen CB-50 fifth valve questions
Posted: Thu Jan 31, 2013 3:10 pm
by Bob Kolada
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?
Re: Getzen CB-50 fifth valve questions
Posted: Thu Jan 31, 2013 3:29 pm
by EdFirth
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
Re: Getzen CB-50 fifth valve questions
Posted: Thu Jan 31, 2013 4:49 pm
by srawleigh
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.
Re: Getzen CB-50 fifth valve questions
Posted: Thu Jan 31, 2013 6:13 pm
by Lee Stofer
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.