Quieting Loose and Noisy Mechanical Linkage #1
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- Опубліковано 20 лип 2024
- This is a how-to video about tightening loose mechanical linkage. This is part 1 about tightening the gap between the lever and the rotor arm screw.
Here is the link to part 2:
Tightening Loose Mechanical Linkage #2: Sloppy Levers
• Tightening Loose Mecha...
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Art's next video: Quieting loose and noisy customers!!😂😆😆but all kidding aside, this man is one of the BEST in the business
Wow. An instrument repairman that not only is willing to take on more than just school contracts, but is willing to do mechanical rotor linkage! Whenever we get cloning figured out, I'm going to need one of your clones to move to the Kansas City area.
Thank you so much for shareing all yout knowledge!
I recently bought a used french horn and repaired most of the flaws with the tips i learned on your channel.
I am glad I could help.
Man, that's a beautiful horn!
Yes, it was. It was a challenging and fun instrument to work on.
Do you know much about the design history of this type of valve linkage? I also have a 4 valve rotary trombone and I am impressed with the amount of craftsmanship.
I'm sure there's an expert somewhere that can tell you in detail every nuance of these instruments, but that person isn't me. What I can tell you in a nutshell is that these 'bones first appeared around 1840 and were popular up until about 1900. They were primarily used in opera and pit orchestra settings in Vienna (hence why they are called either "German Valve" or "Viennese Valve") in which the length of the slide trombone was a liability in close quarters.
When opera started to decline, so did the rotor valve trombone. The rotor 'bones had intonation issues as any valve instrument does, and this can cause a problem in a philharmonic setting. Then came jazz, ragtime, etc and other pop music of the early 1900's in which the slide trombone was a much better choice. The rotor trombone basically became a curiosity in the 1920's and more or less extinct by WWII. The 3-piston valve trombone lives on in jazz circles to this day, but by and large any valve 'bone is a niche instrument with the rotor 'bones being a niche inside of a niche and really can only be seen played in the traditional Vienna operas- and even then not very often.
As for me, I play my rotors as much as I can. I only really play for Christmas and Easter pageants, a "coffee house" open mike situation at the local music store on Saturdays, and I help out with the school music program from time to time. Just goofing really. In that environment, the valve "bone is a great choice.
@@tjsogmc Very cool! About 15 years ago I wanted to develop my valve skill, but the long throw and other characteristics of the Euphonium or Baritone were not "me". I searched for valve bass trombone and found a seller in Germany apparently clearing out old school instruments. I snapped it up, sent it for maintenance, and now have exactly the instrument for my personality, and have used it in Oktoberfest bands and personal practice . Very glad to meet you and I have enjoyed bonding over such a fun instrument!
@@bontrom8 I thought I was the Lone Ranger. I'm very happy to find someone else playing this wonderful instrument.
And you do have to admit, it's got that killer Steam Punk vibe - which makes sense since these horns are from that time period. And it certainly draws attention when you take it out of the case.
How do you clean nickel silver after silver soldering? It always seems to take me forever to get all of the oxidation off.
I think that goes equally for silver soldered brass, doesn't it? In my experience you have to expect to remove some material. I.e. filing and sandpapering or similar, and then polishing it back to a shine as required. Easy enough if you have a buffing machine, but otherwise will require quite some elbow grease.
How would you loosen one the linkage of one valve? How do I get my wife's problem tenor horn to you?
I have a 4 valve rotary trombone that needs to be done. What is the turnaround time and cost for a job like that?
I haven't known of any other person to have one with this type of linkage. I also have one I got many years ago and put some money into it for basic clean up and repair. It is a fantastic instrument produced in Hungary i'm guessing about 1875. This is the first video I have seen to discuss anything to do with it so I am fascinated!
@@bontrom8 I have 2 Zazvonil 4-valve trombones both made in Bohemia (modern day Czech Republic). The first was made around maybe 1900 I think (no serial numbers to verify) judging by the garland and the way the links were sculpted in that style, the second was one of the very last ones made in 1940/41 and has a very storied history and shows evidence of being a rush job due to the war, plus it has the maker's signature and city on the garland.
They are great instruments and fun to play.
mine is stamped Karel Svoboda R.J. Rott Prague. I guessed timeframe was around 1875, but if Bohemia was making them later perhaps mine was also made later. Fun instrument. I got the slides all tuned so I can bend each note in tune without too much effort, and really enjoy the ergonomics, and short throw of the valves. Using a bass trombone mpc makes bending pitches less problematic, but I still need to find out what the original mpc should be.
@@bontrom8 I found that a brass mpc with a thin lip and a straight funnel shaped cup is the best match, about a 6 1/2 size. I have half dozen or so vintage mpc and it's clear to me that even back then they were experimenting with different designs.. I have tried many sizes and that is what seems to work best in 90% of situations, at least for me. A 12c with a deep bowl is also good and I think helps with tone more than a 6 1/2. I can only suggest that you try out many mpc and find what works best for you.
@@tjsogmc cool. That is informative. Makes sense to have a conical shape too since the bore taper is slightly towards the french horn (lead pipe is nearly the full length of the first pipe and the bore past the valves is larger along with the bell.)
How much would you usually charge for this repair?
Hello I am the owner of the horn. I had a few dents removed, the spit key moved, the rotary valves and keys all tightened up that could be tightened. It was about $400 dollars. The horn is hard to get fixed because it is quite old.
@@DM-lu7jp That is good to know. I have two trombones with this kind of valve block that I need serviced. $400 doesn't sound like too bad of a price actually. These horns are very rare, so a few dollars invested in them isn't unreasonable.