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Splitting Duo Gravis Levers

Posted: Tue Aug 16, 2022 8:49 pm
by trombinstharry
Hey all, does anybody know where I can go to split the levers on an old Duo Gravis? Is this something any local repair should could do? I'm in the central Florida area, so preferably near here, but I'm open to going a little distance to do this.

Re: Splitting Duo Gravis Levers

Posted: Wed Aug 17, 2022 3:18 am
by OneTon
Oberloh In Seattle has done some. You could also talk to BAC in Kansas City, Missouri, or Noah Gladstone at Brass Ark. it isn’t rocket science but you need to find a technician that is comfortable with the task. Some are. Some aren’t.

Re: Splitting Duo Gravis Levers

Posted: Wed Aug 17, 2022 5:11 am
by boneagain
You might find helpful notes in this thread:

https://trombonechat.com/viewtopic.php?t=14841

Re: Splitting Duo Gravis Levers

Posted: Wed Aug 17, 2022 12:24 pm
by 2bobone
Here is a photo of a split trigger conversion done by Oberloh in Seattle on a Reynolds bass I used to own. His work is excellent. I also have a former student who is letting his SS Duo Gravis [with split triggers] go due to health issues if you might have any interest.

Re: Splitting Duo Gravis Levers

Posted: Wed Aug 17, 2022 1:23 pm
by tbonesullivan
2bobone wrote: Wed Aug 17, 2022 12:24 pm Here is a photo of a split trigger conversion done by Oberloh in Seattle on a Reynolds bass I used to own. His work is excellent. I also have a former student who is letting his SS Duo Gravis [with split triggers] go due to health issues if you might have any interest.
Oh nice! Did Oberloh add that brace too? Whenever I see a Reynolds Contempora I worry about how securely attached the bell is, particularly if you wanted to put a mute in or something. They are nice horns, especially if you get the trigger split and a D Crook made.

Re: Splitting Duo Gravis Levers

Posted: Wed Aug 17, 2022 2:07 pm
by 2bobone
Yeah. Oberloh added the brace and did a beautiful job of it, too. Very artistic work ! Attached is another of the setup that shows the "G" lever and adjustable shoe he fabricated. I once owned a Conn 70H that had a Reynolds double trigger unit fitted and it was very sturdy even without the elegant Oberloh brace.

Re: Splitting Duo Gravis Levers

Posted: Wed Aug 17, 2022 2:12 pm
by 2bobone
I forgot the "D" slide that Oberloh also fabricated !

Re: Splitting Duo Gravis Levers

Posted: Thu Aug 18, 2022 8:20 am
by tbonesullivan
2bobone wrote: Wed Aug 17, 2022 2:12 pm I forgot the "D" slide that Oberloh also fabricated !
Oh boy that IS nice. I often wish I was more into vintage instruments so I could have one set up like that. My first bass trombone was from the 1990s so it came ready to go, though earlier versions had a single trigger and only came with an Eb crook.

How did the horn play?

Re: Splitting Duo Gravis Levers

Posted: Thu Aug 18, 2022 8:24 am
by Matt K
The Reynolds is one of the slickest looking horns ever. I love that wrap.

Re: Splitting Duo Gravis Levers

Posted: Thu Aug 18, 2022 8:52 am
by slidefunk
trombinstharry wrote: Tue Aug 16, 2022 8:49 pm Hey all, does anybody know where I can go to split the levers on an old Duo Gravis? Is this something any local repair should could do? I'm in the central Florida area, so preferably near here, but I'm open to going a little distance to do this.
www.sweeneybrass.com

SweeneyBrass in Raleigh, NC is a little closer than the other shops listed, though at least a days drive from Florida. Scott does great custom work.

Re: Splitting Duo Gravis Levers

Posted: Sat Aug 20, 2022 10:02 am
by bigbandbone
I know Todd at Cadence Music in Ft Myers has done it.

Re: Splitting Duo Gravis Levers

Posted: Sat Aug 20, 2022 12:44 pm
by bellend
Hi,

here's a few pictures to give you ideas , I've had these for many years and my memeory is not always the best but I believe this mod was actually done by Charles? McCracken then man who designed the Duo Gravis in the first place.

I think he said he'd wished he'd made the rotors turn in the opposite direction to help with popping.

BellEnd

Re: Splitting Duo Gravis Levers

Posted: Sat Aug 20, 2022 2:19 pm
by Kingfan
bellend wrote: Sat Aug 20, 2022 12:44 pm Hi,

here's a few pictures to give you ideas , I've had these for many years and my memeory is not always the best but I believe this mod was actually done by Charles? McCracken then man who designed the Duo Gravis in the first place.
George McCracken.