Blob of solder in Valve Section: Do I care?
- JTeagarden
- Posts: 625
- Joined: Feb 24, 2025
I have an Edwards T-350, which, after a bunch of cleaning and not being an idiot, plays nicely.
I was maintaining the axial valve, and noticed a blob of solder where the unengaged brass pipe is attached to the male (bottom) leg that the main tuning slide goes on to.
The blob might be all of 3 mm high and maybe 4 mm wide, and if I were to guess as the the blockage in the pipe, no more 5%.
Any reason to care?
I was maintaining the axial valve, and noticed a blob of solder where the unengaged brass pipe is attached to the male (bottom) leg that the main tuning slide goes on to.
The blob might be all of 3 mm high and maybe 4 mm wide, and if I were to guess as the the blockage in the pipe, no more 5%.
Any reason to care?
- ithinknot
- Posts: 1339
- Joined: Jul 24, 2020
Probably not the end of the world, but also straightforward for a tech to remove. Probably best if you don't go messing around in there with triangular scrapers yourself - it's easy to do if you have a feel for the tools, but easier to gouge something pretty badly if you don't.
- Bonearzt
- Posts: 833
- Joined: Mar 22, 2018
[quote="JTeagarden"]I have an Edwards T-350, which, after a bunch of cleaning and not being an idiot, plays nicely.
I was maintaining the axial valve, and noticed a blob of solder where the unengaged brass pipe is attached to the male (bottom) leg that the main tuning slide goes on to.
The blob might be all of 3 mm high and maybe 4 mm wide, and if I were to guess as the the blockage in the pipe, no more 5%.
Any reason to care?[/quote]
I have found that even a tiny blob like this can affect the response.
I find this ALL the time on Bach 42BOs!!
I was maintaining the axial valve, and noticed a blob of solder where the unengaged brass pipe is attached to the male (bottom) leg that the main tuning slide goes on to.
The blob might be all of 3 mm high and maybe 4 mm wide, and if I were to guess as the the blockage in the pipe, no more 5%.
Any reason to care?[/quote]
I have found that even a tiny blob like this can affect the response.
I find this ALL the time on Bach 42BOs!!
- brassmedic
- Posts: 1447
- Joined: Dec 14, 2018
Bach always used too much solder (except when they forgot to solder a joint altogether).
- JTeagarden
- Posts: 625
- Joined: Feb 24, 2025
Ok, seems easy enough for a brass tech to remove without much effort, I have a decent general feel for tools, but am also aware of the tendency to screw things up the first time you do something!
I assume they'll go in with a round metal file through the back, and file it down?
<ATTACHMENT filename="IMG_3135.jpg" index="0">[attachment=0]IMG_3135.jpg</ATTACHMENT>
Now that you can see it, would you remove it?
I assume they'll go in with a round metal file through the back, and file it down?
<ATTACHMENT filename="IMG_3135.jpg" index="0">
Now that you can see it, would you remove it?
- pfrancis
- Posts: 172
- Joined: Jul 22, 2018
If I were to work on it, I’d simply remove the leg. Clean up excess and reinstall.
- JTeagarden
- Posts: 625
- Joined: Feb 24, 2025
Which requires resoldering? And would you do it in the first place, given what you see?
- Bonearzt
- Posts: 833
- Joined: Mar 22, 2018
The cause of that blob is the joints not fitting together BEFORE soldering!
I either run a straight reamer into the pipe, or as mentioned, disassemble & refit & resolder correctly.
And yes, Mr.Teagarden, I would address this.
Eric
I either run a straight reamer into the pipe, or as mentioned, disassemble & refit & resolder correctly.
And yes, Mr.Teagarden, I would address this.
Eric
- Jimkinkella
- Posts: 286
- Joined: Mar 23, 2018
Yes!
This definitely makes a difference, from personal experience!
I would absolutely recommend getting it taken care of.
This definitely makes a difference, from personal experience!
I would absolutely recommend getting it taken care of.
- JTeagarden
- Posts: 625
- Joined: Feb 24, 2025
[quote="Bonearzt"]The cause of that blob is the joints not fitting together BEFORE soldering!
I either run a straight reamer into the pipe, or as mentioned, disassemble & refit & resolder correctly.
And yes, Mr.Teagarden, I would address this.
Eric[/quote]
Eric,
Sent you a pm in this regard.
I either run a straight reamer into the pipe, or as mentioned, disassemble & refit & resolder correctly.
And yes, Mr.Teagarden, I would address this.
Eric[/quote]
Eric,
Sent you a pm in this regard.
- JTeagarden
- Posts: 625
- Joined: Feb 24, 2025
Eric Edwards removed the solder blobs, and generally de-stressed the horn, just got it back today, it slots much better, and is more responsive as well, very much worth the reasonable price he charged!
It's gone from a horn you think should be good to one that actually is.
It's gone from a horn you think should be good to one that actually is.
- Bonearzt
- Posts: 833
- Joined: Mar 22, 2018
[quote="JTeagarden"]Eric Edwards removed the solder blobs, and generally de-stressed the horn, just got it back today, it slots much better, and is more responsive as well, very much worth the reasonable price he charged!
It's gone from a horn you think should be good to one that actually is.[/quote]
Thank you Sir!
It's gone from a horn you think should be good to one that actually is.[/quote]
Thank you Sir!
- JTeagarden
- Posts: 625
- Joined: Feb 24, 2025
Played it a lot more today, it’s spectacular!