Source for 19 mm ID brass tubing

[harrell]

I am about to have a week off for spring break(hallelujah!) and want to start working on rebuilding my fourth valve on my F tuba. I am looking for a source for 19 mm ID brass tubing. By my best guesstimate, I will need lengths of about 48" to play with. I have repaired many horns but this is my first time "building" something, other than small things like braces. Just curious where you guys get tubing other than off old horns.

[the elephant]

For nickel silver — Miraphone
For brass — Allied

Allied mostly sells SAE and Miraphone sells “Miraphone sized” tubes in nominal mm sizes.

Allied’s .750” ID tube has a matching outer tube, and 19mm is .748”, which won’t match up with what is on the horn, but when playing, there is zero difference.

[bloke]

Meinlschmidt and some other European suppliers have that specific size in nickel-brass.
Someone told me that they believe they found the place that actually makes the tubing that Meinlschmidt uses to put with their rotors and pistons. I don't remember who they told me they were, but I could probably do some research. (I still have some not-for-sale hunks of it around here, so I'm not looking right now.)

As far as fitting inside and outside tubes to each other, it takes a lot less time to fit yellow brass than it does nickel-brass, but whatever on that. Some people prefer the harder metal and/or the look of it. If it's an old American instrument, the yellow brass offers a vintage American look, yes?

[harrell]

Thanks guys!