In a message dated 3/20/2004 9:33:17 PM Eastern Standard Time, [EMAIL PROTECTED] writes:
> > I'd like to lengthen the keys on my horn, probably by putting dimes on, but > I'm not sure what the best way is to go about it. The keys are unlaquered > nickel silver. I've heard that using epoxy is an alternative to solder, but > I don't want something that is impossible to remove. Any > pointers? > > Thanks, > > Josh I've done this a couple of ways. One way is to make a bracket to extend and/or raise the keys from the original bracket soldered to the valve casings. The lower portion of the key mechanisms will probably need to be re bent to position the spatulas where you want them and still operate the rotor strings. Anneal the part of the key you are going to bend. If you don't have a torch, get them red hot on the stove. Plan the bends both before and after you've moved the keys. The other way is to make a set of longer spatulas. Hobby shops carry brass strip in fairly thick pieces. Cut and shape the strips to cover the old spatulas and shape them to be attractive and unobtrusive. A one inch belt sander makes quick work of the shaping, and is one tool you'll always be glad to own. A sanding disk in an electric drill works, too. Soldering is the easiest way to attach them, and is easily scraped off if you want to switch back. For epoxy, I recommend the five minute variety sand the mating surfaces with 220 grit. Five minute epoxy easily comes apart with steam or boiling. The spatulas can be polished with fine grades of wet/dry sand paper followed by scotch brite and brass polish. I've heard some pros are scotch brite finishing un- lacquered horns and sealing them with a single coat of spray lacquer. I'm going to try it on an 1885 French tuba my son loves, but is really ugly. I suspect the finish will last a year or two, then can be redone. The scotch brite pads at home depot come in all grades, and can be cut in one inch strips to quickly rag the horn. For anyone who wants to try this at home, spend the time to make a bell rim holder for French horn or padded post holder for other brass so you can rag with both hands. The biggest horns can be done in less than an hour. Clamp the holder in a large vise or to a porch railing. Spraying can usually done outdoors early in the morning when the air is clean and still. The sun will then bake it as it gets later in the day. _______________________________________________ post: [EMAIL PROTECTED] set your options at http://music.memphis.edu/mailman/options/horn/archive%40jab.org
