bloke wrote: ↑Fri Dec 17, 2021 8:32 am I manage to shoehorn 5/8” diameter into those and similar applications

That ought to be plenty big!

Those detachable bells share the same tenon/receiver set with the Bohm & Meinl/York 'Master' tubas.

I have one here now that is badged E.K. Blessing. It's identical to the Marzan except the main tuning slide is in the conventional lower position.

@Dan Schultz posted on his Website that he has 8 of these tubas serviced and for sale. Seems like he may know a thing or two (or 32) about St. Pete valves. :tuba: Yup. And some of them have the extra ring on the front side of the rotor. I think that ring was done strictly for manufacturing purposes ...

Joe... St. Pete rotors are tapered like most other rotors. I've never fully understood why some of the rotors have the extra ring on the front side but since the rotors are tapered... they cannot be removed from the front side. (at least I don't THINK St. Pete makes any straight-cut rotors). :huh:

For starters... properly fit brass guides running in smooth guide slots will not 'slap' back and forth in the guide slot. That 'slapping' is actually caused by the spring as the piston goes up and down. It's difficult to imagine but as the spring is compressed the wire in the spring stays the same ...

I keep a clear Kelly 50 in my mouthpiece pouch for 'emergencies'. I got it back when it came out as basically a prototype. It was produced on prototype tooling and hand finished. Did it ever go into full production?

Good horn. I have a King that I use for Dixieland so this one is up for sale. Can't keep 'em all!

Funny that no one's mentioned "replace the crook" yet.

hup_d_dup wrote: ↑Sun Aug 22, 2021 11:32 am After a couple of years the sink started to rust in the corners.

Were the corners welded? If so... the fabricators used the wrong grade of rod.

Yes. CHEAP 'stainless' steel will rust. I once designed over a million bucks worth of food grade equipment for a company and specified 304 stainless steel just to have a bunch of goof-balls in the shop try to save a few bucks by using regular rods for the welding instead of using low-carbon rods.

Thanks for reposting and sharing this video. I had almost forgotten about it. Yes... both of those Marzans left here some time back... as well as many other Marzans since then. The 'Pit Tuba' does not live here any more either. Neither the Conn 'Jumbo' sousa. In fact.... I think the only two horns ...

I just replenished my stock of Ultra-Pure Lamp Oil.

How is the bell?

I'm 74. I've had no health problems my entire life until just a few years ago when my VA GP noticed a heart murmur caused by a 'leaky' aortic valve. They have been monitoring it via echo-cardiograms every six months for three years. The cardiologist said it wasn't severe enough to cause problems and ...

To make it play maybe $500. To Make it pretty might add another $2,500 or more. Much of the silver could be compromised. That's IF the existing parts can be straightened. Bow guards can be a royal pain. This one is a Cerveny-made stencil. They play OK but I MUCH prefer the B & S-made stencils. One ...

I used one of those as my 'go to' Dixieland horn for about ten years. Good horns. I finally put a fourth piston on it and sold it a short time later.

Cutting to F and still having just three valves would be a pretty worthless horn, I think.

The proportion between a BBb tuba and a CC tuba is 18/16. There is no way to use engineering to determine EXACTLY what you need to remove from the open bugle and each valve circuit but the ratio will give you a good start. I tend to leave things on the long side so I can made adjustments as needed ...

One of my customers will be moving to Atlanta for the coming school year. Who can I suggest he see for future service or repairs to his tuba?

If I see any more 'copies' of these great old horns I think I'll just puke! There are still many thousands of the 'real deal' lurking in school back rooms. 'Copies' generally don't offer any improvement. They aren't copies. They are junk.

That's classic Jingying ad mistake. The image is flipped. Duh! Don't think I want one.