0.660 or 0.710 Bore Rotary Valve

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Tubajug
5 valves
5 valves
Posts: 1712
Joined: Wed Jun 10, 2009 7:23 pm
Location: Lincoln, NE

0.660 or 0.710 Bore Rotary Valve

Post by Tubajug »

I'm looking for a rotary valve to use on my Eb tuba project as a 5th valve. The small side of the main tuning slide is 0.660 bore and the large side is about 0.710. If you have a rotor with either of these bore sizes, please let me know. If you have the smaller size, I should have tubing for it, if you have the larger size, I will need tubing as well if you have any, but I'd be happy just to start with a valve.

I have the old, top action, three valve section I removed from the Eb tuba I'm refurbishing if that interests you as a trade option. Thanks!
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.
User avatar
Tubajug
5 valves
5 valves
Posts: 1712
Joined: Wed Jun 10, 2009 7:23 pm
Location: Lincoln, NE

Re: 0.660 or 0.710 Bore Rotary Valve

Post by Tubajug »

I've seen the elephant's posts about those and thought the same thing. The ports are slanted on those if I remember right, but if anyone had one I'd take 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.
User avatar
Tubajug
5 valves
5 valves
Posts: 1712
Joined: Wed Jun 10, 2009 7:23 pm
Location: Lincoln, NE

Re: 0.660 or 0.710 Bore Rotary Valve

Post by Tubajug »

My calipers are reading 0.695 ID on the ferrule I could use and 0.685 ID on the MTS now... I don't know where I got 0.660 from, unless I was measuring the inner slide for that. Either way, there you go. Thanks!
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.
User avatar
Tubajug
5 valves
5 valves
Posts: 1712
Joined: Wed Jun 10, 2009 7:23 pm
Location: Lincoln, NE

Re: 0.660 or 0.710 Bore Rotary Valve

Post by Tubajug »

Ok, then the measurements I gave you are correct. The small side of the main tuning slide was 0.685.
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.
User avatar
Tubajug
5 valves
5 valves
Posts: 1712
Joined: Wed Jun 10, 2009 7:23 pm
Location: Lincoln, NE

Re: 0.660 or 0.710 Bore Rotary Valve

Post by Tubajug »

No worries.

I've posted some pictures for clarity below. If you have a rotary valve whose ports will fit *inside* either of these tubes, please let me know. Thanks!

The small side of the main tuning slide:

Image

The large side of the main tuning slide:

Image

Thanks folks!
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.
PRO
bugler
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Joined: Sat May 22, 2004 7:14 am

Re: 0.660 or 0.710 Bore Rotary Valve

Post by PRO »

Hi Jordan, Please contact me by email at proscientific AT verizon DOT net. No PM please. Paul.
User avatar
Tubajug
5 valves
5 valves
Posts: 1712
Joined: Wed Jun 10, 2009 7:23 pm
Location: Lincoln, NE

Re: 0.660 or 0.710 Bore Rotary Valve

Post by Tubajug »

I was able to find one that will work on the large side of the tuning slide. Thanks folks!
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.
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