Professional Band Instrument Repair Technician Logo

Featured Member

ID: sidelinger
Since: 5/22/2007
From: Armada 
Rating: (0.0)

Featured Picture

Google Ads

  Active TopicsActive Topics  Display List of Forum MembersMemberlist  Search The ForumSearch  HelpHelp
Piston Instruments
 PROBIRT Forums » Piston Instruments
Subject Topic: king sousaphone rattle Post ReplyPost New Topic
Author
Message << Prev Topic | Next Topic >>
davemyers
Technician
Technician


Joined: January.19.05
Location: USA
Online Status: Offline
Posts: 5
Posted: August.31.08 at 4:47pm | IP Logged Quote davemyers

I have a school band King Sousaphone that rattles when played. I have looked for any broken solder joints or loose pieces. I used a borescope to examine as much of the tubing as I could reach. I used a spring to snake out the rest. No rattle is produced by shaking the instrument Yet it rattles when played, worse on some notes than others.
Does anyone have any ideas?
Back to Top View davemyers's Profile Search for other posts by davemyers
 
bobbaier
Technician
Technician


Joined: February.07.05
Location: USA
Online Status: Offline
Posts: 30
Posted: September.01.08 at 8:01am | IP Logged Quote bobbaier

It's hard to track these things down sometimes. It might be easier to make the player an honorary member of the percussion section...

Without hearing the kind of sound, it's hard to make specific suggestions. Bell screws are always suspect. Make sure they're all tight and also the valve caps. Sometimes, if you just kind of thump the horn in different spots with the heel of your hand, you'll turn up a rattle somewhere. I've run into valves that are noisy in the guide slots or that have a broken stem inside that's loose. There may be an interior brace loose that doesn't feel loose since it's supported by other braces, but can vibrate at certain frequencies.

It will probably take two people--one to play and one to listen and dampen different parts of the horn until you find it.

Let us know how it works out.

bob
Back to Top View bobbaier's Profile Search for other posts by bobbaier
 
admin
Admin Group
Admin Group
Avatar

Joined: March.10.05
Location: USA
Online Status: Offline
Posts: 304
Posted: September.15.08 at 5:24pm | IP Logged Quote admin

I recently had a baritone that you would swear on your mother's grave that the bell rim was vibrating.  It turned out to be a hole in the tubing between two of the valve casings.  I found it when I started pressing on different parts of the horn and felt the air escaping. 

So maybe try suction tests on different parts of the instrument as well.

Michelle
Back to Top View admin's Profile Search for other posts by admin Visit admin's Homepage
 
motomom
Newbie
Newbie


Joined: April.08.07
Location: United States
Online Status: Offline
Posts: 28
Posted: November.19.08 at 9:56pm | IP Logged Quote motomom

Um, I'm just the woodwind side of our shop, but I seem to remember that some sousas still have the ring of wire inside the edge of the bell, and sometimes it is not filled with enough solder and vibrates.
Back to Top View motomom's Profile Search for other posts by motomom
 

If you wish to post a reply to this topic you must first login
If you are not already registered you must first register

  Post ReplyPost New Topic
Printable version Printable version

Forum Jump
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot delete your posts in this forum
You cannot edit your posts in this forum
You cannot create polls in this forum
You cannot vote in polls in this forum

Powered by Web Wiz Forums version 7.9
Copyright ©2001-2004 Web Wiz Guide

This page was generated in 0.1094 seconds.

Login

Login to view contents and post messages and reviews
Username:
Password:

New Member Registration
Retrieve Lost Password

Shout Box

  • (10/9 17:13) ChrisHarnett: Doesn't seem very promising
  • (10/6 12:46) DriverDrobina: Is this site still active?
  • (10/6 12:45) DriverDrobina: I have the same concern
  • (6/2 17:51) Wailinfree: is this site still active?
  • (6/2 17:51) Wailinfree: is this site still active?
  • (4/29 12:46) BENSCHILDGEN: Cleaning snakes nowdays SUCK!
  • (12/4 22:44) dparker: Hey Brent!
  • (11/26 20:46) crousfrench: I'm back. Did you miss me?
  • (10/9 7:18) BENSCHILDGEN: What's going on out there?
  • (6/1 18:53) dparker: dparker@ciomit.com www.ciomit.com
  • (6/1 18:53) dparker: or we can do an online meeting
  • (6/1 18:53) dparker: It can be dangerous. If you could send some pic
  • (5/25 5:17) BENSCHILDGEN: It seemed as if it was silver brazed together
  • (5/25 5:17) BENSCHILDGEN: It seemed as if it was silver brazed together
  • (5/25 5:9) BENSCHILDGEN: I had an old tuba that I could not get it apart.
  • (5/25 5:8) BENSCHILDGEN: I just do not know much about the whole mechainsm
  • (5/24 14:2) dparker: How can I help with the clock springs?
  • (5/24 14:2) dparker: How can I help with the clock springs?
  • (5/18 5:9) BENSCHILDGEN: MAYBE THIS SITE SHOULD BE LINKED TO FACEBOOK
  • (4/26 7:20) BENSCHILDGEN: I need info on tubas with clocksprings for levers
  • (4/4 8:34) dparker: Indeed! I will be posting more soon!ore soon!
  • (3/30 11:36) BENSCHILDGEN: Let's try to get this site flowing again
  • (7/6 19:46) Krch: My favorite is uses for electric soldering guns!
  • (6/13 9:0) crousfrench: I still enjoy watching the videos over and over
  • (6/13 8:59) crousfrench: I haven't seen anything new in awhile, but
  • (5/31 21:36) Krch: articles...articles
SmartFlix.com How-To DVD Rental