Some past band director (for the public middle school) decided to buy a FOUR valve euphonium (OK...they economized and bought Taiwanese, but)...for whatever reason (in addition to failing to realize that they could be TWO 3-valve LACQUER FINISH euphoniums for the same dough) for whatever reason decided, "oh...This needs to be a SILVER PLATED euphonium, as well as a four-valve euphonium (for these beginners).
OK...some of you Texans and such will respond, but bloke, blah-blah and blah-blah-blah (education/"they need to learn to use four valves" bullcrap), to which I would say. Hell no they don't, they need as many instruments for as many (probably no-dad) children as possible, to get them involved in doing something (anything...)
Anyway, (BACK TO THE REPAIR TOPIC)...I've really grown weary of having to braze cracked rims on these delicate Taiwan instruments (very thin-diameter delicate rims, with no wire inside)...and do it in a terrible rush - during the summer.
I don't try to make these repairs perfect cosmetically...not at all...I intentionally (though I grind it down somewhat) leave part of the blob of brazing material over the crack (for more strength).
Here's a typical (summer, beat-up-crap instrument) rim repair.
- remove the crease
- remove the tiny dent on the tear itself (caused by the tear)
- line up the rim the best I can manage
- walk on a tightrope (stupid-ass silver plating) to get the rim just hot enough to braze the crack in it WITHOUT burning away a semicircle of silver plating on the bell flare.
- grind it down a little bit, but (again) leave some extra material there for strength
- go back and straighten the rim (to a plane), so that - at least until they re-bend the rim - the instrument will rest on it's bell without falling over (for the 473rd time).
Here's a typical ugly rim repair (while managing to somehow NOT burn the silver plating)
...so yeah (per typical) the bell's sheet metal (past the rim) was torn for an additional c. 1/16th of an inch...thus the shape of the chunk of brazing material...
...so now: onto their f'ed up trumpets...

