...and I vented the valves in my King/Holton tuba this weekend. I did a practice run on a baritone valve I had around and finally went for it and had no incidents doing all four valves. Whew!
Finally worked up the courage...
- Tubajug
- 5 valves
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- Joined: Wed Jun 10, 2009 7:23 pm
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Finally worked up the courage...
Jordan
King 2341 with a Holton "Monster" Eb bell
Eb Frankentuba
Martin Medium Eb Helicon
If at first you don't succeed, skydiving's probably not for you.
King 2341 with a Holton "Monster" Eb bell
Eb Frankentuba
Martin Medium Eb Helicon
If at first you don't succeed, skydiving's probably not for you.
- Dan Schultz
- TubaTinker
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- Joined: Thu Mar 18, 2004 10:46 pm
- Location: Newburgh, Indiana
- Contact:
Re: Finally worked up the courage...
BRAVO! That's how you learn stuff. Did you use a stop on your drill? ... or just control the depth of the drill quill?
Dan Schultz
"The Village Tinker"
http://www.thevillagetinker.com" target="_blank
Current 'stable'... Rudolf Meinl 5/4, Marzan (by Willson) euph, King 2341, Alphorn, and other strange stuff.
"The Village Tinker"
http://www.thevillagetinker.com" target="_blank
Current 'stable'... Rudolf Meinl 5/4, Marzan (by Willson) euph, King 2341, Alphorn, and other strange stuff.
- Tubajug
- 5 valves
- Posts: 1712
- Joined: Wed Jun 10, 2009 7:23 pm
- Location: Lincoln, NE
Re: Finally worked up the courage...
Thanks for the replies guys. To answer your question Dan, I did my practice run on the baritone valve "free hand" and almost drilled through the wall of the port as well...oops! So when I did it for real, I just wrapped some electrical tape around the drill bit to act as a stopper so I wouldn't drill in too far.
I might drill out the hole a little more in the first valve slide, as you suggested bloke, as I still feel some resistance when pulling on that one. I used a 5/64" was all. A 7/32" is a pretty big hole!
I might drill out the hole a little more in the first valve slide, as you suggested bloke, as I still feel some resistance when pulling on that one. I used a 5/64" was all. A 7/32" is a pretty big hole!
Jordan
King 2341 with a Holton "Monster" Eb bell
Eb Frankentuba
Martin Medium Eb Helicon
If at first you don't succeed, skydiving's probably not for you.
King 2341 with a Holton "Monster" Eb bell
Eb Frankentuba
Martin Medium Eb Helicon
If at first you don't succeed, skydiving's probably not for you.
- Dan Schultz
- TubaTinker
- Posts: 10424
- Joined: Thu Mar 18, 2004 10:46 pm
- Location: Newburgh, Indiana
- Contact:
Re: Finally worked up the courage...
Yup. I've done that, too. Sometimes I don't take my own advice. But... I've learned that just setting a depth stop on a drill press isn't enough if the drill decides to 'grab'. These days I use a piece of wood over the drill so that only 1/8" or so of the drill is exposed.bloke wrote: ...so does it scare people away when I admit here that I (simply) only drill about "yea deep"...?? ....
Dan Schultz
"The Village Tinker"
http://www.thevillagetinker.com" target="_blank
Current 'stable'... Rudolf Meinl 5/4, Marzan (by Willson) euph, King 2341, Alphorn, and other strange stuff.
"The Village Tinker"
http://www.thevillagetinker.com" target="_blank
Current 'stable'... Rudolf Meinl 5/4, Marzan (by Willson) euph, King 2341, Alphorn, and other strange stuff.
- MaryAnn
- Occasionally Visiting Pipsqueak
- Posts: 3217
- Joined: Fri Mar 19, 2004 9:58 am
Re: Finally worked up the courage...
Someone please explain venting to me. It looks like "installing a leak" ... and this is a serious question.
- Rick F
- 5 valves
- Posts: 1677
- Joined: Thu Mar 18, 2004 11:47 pm
- Location: Lake Worth, FL
Re: Finally worked up the courage...
The small vent hole lines up with one leg of the valve's slide when the valve is at rest or up position. When the valve is up you can pull that coresponding slide (in preparation to tune that fingering) without hearing a pop when you DO press the valve down. The vent hole is covered up by the valve's casing when the valve is in the down position or depressed. So there is no leak. Also helps when playing slurred passages so you don't hear as much popping during temperature changes as the horn warms up.
Miraphone 5050 - Warburton mpc (Brandon Jones)
YEP-641S (on long-term loan to grandson)
DE mpc (102 rim; I-cup; I-9 shank)
YEP-641S (on long-term loan to grandson)
DE mpc (102 rim; I-cup; I-9 shank)
- Tubajug
- 5 valves
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- Joined: Wed Jun 10, 2009 7:23 pm
- Location: Lincoln, NE
Re: Finally worked up the courage...
Rick F did a nice job summing it up. If you want to look some more, I found this older thread helpful while I was drumming up the courage to try it.
Jordan
King 2341 with a Holton "Monster" Eb bell
Eb Frankentuba
Martin Medium Eb Helicon
If at first you don't succeed, skydiving's probably not for you.
King 2341 with a Holton "Monster" Eb bell
Eb Frankentuba
Martin Medium Eb Helicon
If at first you don't succeed, skydiving's probably not for you.
- MaryAnn
- Occasionally Visiting Pipsqueak
- Posts: 3217
- Joined: Fri Mar 19, 2004 9:58 am
Re: Finally worked up the courage...
One reason I ask is that when I sold my Miraphone 184, the guy who bought it (sight unseen at a very good price) wrote back ecstatic about how wonderful an instrument it was (which I knew, but I was not in sufficient health to put more than minimal effort into selling it) and that the valves had been vented. I don't know how you vent rotaries....but get the concept now.