While I know anything is possible, I am asking our gurus that know this stuff about whether or not it would be worth the attempt.
20J body with a Kanstul upright bell, reversed to accept front action
either a King 4V set plus a 5th rotor or the preference, a 4 or 5 Valve MeinlSchmidt rotor set
I already have the bell sitting and waiting for the day.... And finding a 20J body is quite easy... My mind thinks this would be worth the attempt at a beautiful sounding, in-tune 6/4 Bflat...
Thoughts amigos????
20J customize?
- bigboymusic
- 3 valves
- Posts: 383
- Joined: Fri Mar 19, 2004 7:54 am
- Location: Independence, MO
20J customize?
Paul Weissenborn
St. Joseph Symphony Orchestra (MO)
Spirit of Independence Band
SJSO Quintet
Alex 163 CC
YEB 321S
St. Joseph Symphony Orchestra (MO)
Spirit of Independence Band
SJSO Quintet
Alex 163 CC
YEB 321S
- bort
- 6 valves
- Posts: 11223
- Joined: Wed Sep 22, 2004 11:08 pm
- Location: Minneapolis, Minnesota
Re: 20J customize?
You might want to talk to Norm Epley. A few years ago, he grafted a Cerveny rotor section to a big Conn. I can't remember if it was in BBb or CC. I think it turned out pretty well...?
- The Big Ben
- 6 valves
- Posts: 3169
- Joined: Sat Dec 16, 2006 11:54 am
- Location: Port Townsend, WA
Re: 20J customize?
Art Hovey built one such as you suggest but with a recording bell:bigboymusic wrote:While I know anything is possible, I am asking our gurus that know this stuff about whether or not it would be worth the attempt.
20J body with a Kanstul upright bell, reversed to accept front action
either a King 4V set plus a 5th rotor or the preference, a 4 or 5 Valve MeinlSchmidt rotor set
I already have the bell sitting and waiting for the day.... And finding a 20J body is quite easy... My mind thinks this would be worth the attempt at a beautiful sounding, in-tune 6/4 Bflat...
Thoughts amigos????
http://galvanizedjazz.com/tuba/20J/20Jconversion.html" target="_blank
- Donn
- 6 valves
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- Joined: Fri Aug 19, 2005 3:58 pm
- Location: Seattle, ☯
Re: 20J customize?
Wow - his modest, matter of fact account almost makes that sound like an easy job.The Big Ben wrote:Art Hovey built one such as you suggest but with a recording bell:
http://galvanizedjazz.com/tuba/20J/20Jconversion.html" target="_blank" target="_blank
Is that the way it's usually done, using a rotary grinder to thin large bow tenon joints to fit? I've seen a repairman use a sort of crimper like thing to enlarge a small tenon, which seems like it would be easier as you'd naturally maintain a constant thickness, but making the tenon smaller might not be so easy.
- Art Hovey
- pro musician
- Posts: 1506
- Joined: Sun May 02, 2004 12:28 am
- Location: Connecticut
Re: 20J customize?
Adam Crowe now owns that tuba. He added a Kanstul upright bell and has used it in a concert with the New Haven Symphony.
Doing the conversion wasn't exactly "easy", but I was able to do it with only a moderate amount of skill and simple equipment.
It was just something I had always wanted to try and it worked out. I have no idea how a real tuba mechanic would do it, but it can be done.
If money were no object I would choose a Meinl-Weston valve section.
Doing the conversion wasn't exactly "easy", but I was able to do it with only a moderate amount of skill and simple equipment.
It was just something I had always wanted to try and it worked out. I have no idea how a real tuba mechanic would do it, but it can be done.
If money were no object I would choose a Meinl-Weston valve section.
- TUbajohn20J
- 4 valves
- Posts: 943
- Joined: Tue Nov 20, 2007 5:44 pm
- Location: Sugar Land, Texas
Re: 20J customize?
Go for it if you have the skill or have the means to pay for the work. Or you could buy a 36J and have the horn you are wanting already made from the factory. Or, if you are wanting to keep it short action you can buy a 22K sousa valve section and possibly use the 2nd valve of the 20J to make the 4th valve. Yes the 20J valve would be a slightly larger bore but that will be good for a 4th valve and really open up the low range. Keep us posted!
Conn 26J/27J
Conn 22K Hybrid
Conn 22K Hybrid
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- 3 valves
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- Location: Oakland, CA
Re: 20J customize?
Here is an old thread from someone who converted a 20J to a front action horn using a 20K (slightly smaller bore) valve section:
viewtopic.php?f=2&t=39070" target="_blank
viewtopic.php?f=2&t=39070" target="_blank