Euphonium vibration

[justinbarleben]

The same type of thing happened to me when I got my new bass trombone. It was as simple as a little bit of rotor oil. Could it just be that the rotors got dried out in transit?

[Dan Schultz]

Check the lyre screw. Also... check all of the braces.... especially the ones that are three pieces. Make sure your mouthpiece perfectly matches the receiver taper. Could be a loose bell-rim wire, too.

Just a side note.... check the horn in various venues. If could be something else in the room.

[pgym]

On my euph, I've found that occasional stray vibrations are caused, in decreasing order of frequency, by:

a) something in the room;

b) a loose trigger stop rod nut;

c) a loose belly pan screw;

d) a loose grime gutter;

e) a loose lyre screw;

f) a double buzz on the problematic notes;

and that, regardless of the point of origin, the vibration always seems to originate from around the 4th valve. YMMV.

[tubamirum]

Have someone touch/hold various places as you play the pitch that buzzes.

[Rick F]

Don't know why you're keeping the model of the horn a secret. It's like playing 'twenty questions' without all of the information. Maybe if you tell us the brand / model of the horn, someone with a similar experience could help you.

Just a suggestion.

[Carroll]

I had a horn once with a very similar, single note buzz. It turned out to be a loose chunk of solder inside the hand grip tube. That was a tough one to track down.

[augustus]

--edited--

[DelVento]

I can tell it's a York because I had the same problems. I didn't bother reading the above posts because it's TubeNet......

It sounds like it'll be a trigger issue, maybe a bit tighter would help....but feel around the instrument here and there. You'll figure it out.

[euphomate]

I had a similar sounding vibration in a Besson EEb. Tried everything to locate it. Turned out to be an incomplete soldering of a stay plate (the discs that hold the stays to the body of the horn). It was not visible to the naked eye, but it allowed a minor vibration of the plate against the bugle part of the tuba at certain frequencies. A technician located the problem, re-soldered the offending part, and bingo!

[Dan Schultz]

I know you mentioned earlier that you had removed the tuning slide 'kicker' mechanism but did you also take off the finger-paddle and related spring and stop? I recall having a high-end euphonium in the shop a while back where the finger-paddle vibrated against the stop. I cured the problem by gluing a small piece of fingerbutton felt in between the paddle and the stop.