small bore valve conversion

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JohnL
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Re: small bore valve conversion

Post by JohnL »

It looks like there's some extra-heavy tubing adjacent to the valve.
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RJMason
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Joined: Tue Jun 05, 2018 2:04 pm

Re: small bore valve conversion

Post by RJMason »

Originally, I wanted something more traditional…maybe an Olds-style wrap like some early 78Hs or that 4H I once saw. But with 6Hs everywhere why not make it an art piece? Worst case, I could just grab another 6H off eBay.

But this isn’t just about art. While I intend to center this horn in my own artistic journey, I also wanted something that could work for my main gig. On that I stand behind and to the right of the artist angled away. The bell flare sometimes obstructs my view. Now, the downward bend helps me see them better at their mark. Sometimes I need to point the slide downward or bend down so the Dizzy bell works.

Scott balances function and form better than just about anyone. The Millennial Minick! Most techs would say my ideas aren’t practical, but Scott just makes them happen. He’s rebuilt several horns for me over the last 12 years, including two BACs. A SweeneyBrass rebuild will always plays better, mods or not.

This horn blows me away. The heavier receiver makes it more slide flexible than a stock Conn and my Yamaha 891 slide friction-fits perfectly in the bell section (still threaded to Conn for now). This combo is bananas, though I still have a soft spot for the Conn slide. Mini 72H vibes!
bimmerman
Posts: 188
Joined: Wed Apr 04, 2018 5:15 pm

Re: small bore valve conversion

Post by bimmerman »

For what it's worth for future folks: I have a Bach 16 that a prior owner put a 36B valve on. It plays great and I feel like the 36 valve section isn't too much of a change from the 16 tubing. Worth looking into, though fitting it into the 16 bell section required the valve section to be slightly rotated relative to the plane of the bell/gooseneck section.

It's awesome, and is my main horn at this point
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Burgerbob
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Re: small bore valve conversion

Post by Burgerbob »

bimmerman wrote: Thu Jul 24, 2025 8:30 am For what it's worth for future folks: I have a Bach 16 that a prior owner put a 36B valve on. It plays great and I feel like the 36 valve section isn't too much of a change from the 16 tubing. Worth looking into, though fitting it into the 16 bell section required the valve section to be slightly rotated relative to the plane of the bell/gooseneck section.

It's awesome, and is my main horn at this point
This is interesting. I would be very surprised if the 16 gooseneck is anywhere near .562 even exiting the valve.
Aidan Ritchie, LA area player and teacher
bimmerman
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Joined: Wed Apr 04, 2018 5:15 pm

Re: small bore valve conversion

Post by bimmerman »

Burgerbob wrote: Thu Jul 24, 2025 8:44 am
bimmerman wrote: Thu Jul 24, 2025 8:30 am For what it's worth for future folks: I have a Bach 16 that a prior owner put a 36B valve on. It plays great and I feel like the 36 valve section isn't too much of a change from the 16 tubing. Worth looking into, though fitting it into the 16 bell section required the valve section to be slightly rotated relative to the plane of the bell/gooseneck section.

It's awesome, and is my main horn at this point
This is interesting. I would be very surprised if the 16 gooseneck is anywhere near .562 even exiting the valve.
My understanding (which could totally be wrong) was the standard 36 valve tubing was closer to 547, and the 16M open gooseneck was essentially a repurposed standard 36 part?

--should mention-- the gooseneck on this horn looks to be the 36 part, not the 16/16M.

It's a horn that Noah at brassark sold me, I'll see what details I can pull up
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Burgerbob
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Re: small bore valve conversion

Post by Burgerbob »

Any modern 36 valve sections is .562, same as a 42. There may be some early horns that were not.
Aidan Ritchie, LA area player and teacher
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Matt K
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Re: small bore valve conversion

Post by Matt K »

bimmerman wrote: Thu Jul 24, 2025 8:52 am ...
--should mention-- the gooseneck on this horn looks to be the 36 part, not the 16/16M.
...
I was going to comment earlier that I would be surprised if a tech hadn't used a 36 neckpipe (or similar) part or retapered / rigged the 16M pipe up somehow to make it work a little better. I had a Shires valve added to a 42 awhile ago and my tech had to retaper that, even with the 42 having 562 tubing etc.
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