Carol Pocket Trumpet Valve Issues

trumpaholic · Posted: Sun Aug 17, 2014 4:44 am Post subject:

No one doing precision valve port alignments uses felt. There are varying degrees of hardness being used in the new material that is being used. If you used felt, it would not be precise as the felt spacers change over usage while the material now available does not.
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MacMichael · Heavyweight Member Joined: 20 May 2011 Posts: 646

So which is the "new material" then I wonder?

yourbrass · Posted: Thu Oct 02, 2014 8:28 pm Post subject:

I'm posting on this thread because a Carolbrass 3000 pocket trumpet came in for work. It had a gold brass bell and the rest of it was yellow brass.

It played well - scale was good and feel and sound were good. I'm not even a fan of pockets, but this was very playable. I don't know about the valves, that was not the customer's complaint, and to me, they looked like monel metal. With the variety and complexity of alloys available, who knows what they're using?
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MacMichael · Heavyweight Member Joined: 20 May 2011 Posts: 646

yourbrass · Posted: Thu Oct 02, 2014 8:51 pm Post subject:

OK, will take your source's word for it, but in appearance, there is no way to tell. Alloys containing stainless steel, nickel, etc., have endless permutations. And it really doesn't matter as long as the piston goes up and down.
_________________
"Strive for tone." -John Coppola
Edwards X-13
ACB MV3C /ACB A1/26 backbore
https://yourbrass.com/

MacMichael · Heavyweight Member Joined: 20 May 2011 Posts: 646

That is surely right, and yes, the difference between stainless stell and monel valves is really hard if not impossible to tell just by looking at them.
So I do believe what Mr. Lee says - why not, being a longtime established producer of top-notch stainless steel pistons is nothing to be ashamed of I think

Dan O'Donnell · Heavyweight Member Joined: 01 Jan 2005 Posts: 2287

(2) months since changing from Ultra Pure valve oil to Zaja and the valves are still working great!!!

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"Praise Him with the sound of the Trumpet:..."
Psalms 150:3

nordlandstrompet · Posted: Fri Oct 03, 2014 3:08 am Post subject:

For you that don't actually believe 101,89% in what the owners
of CarolBrass tells, this is copied from their old webside:

http://worldwidewebdot.com/stainless_steel.htm
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trumpaholic · Posted: Fri Oct 03, 2014 6:37 am Post subject:

My experience with the valves on 4 Carol trumpets was they needed heavier oil for the break in period. I have found the new Yamaha regular viscosity to really work well for me.
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MacMichael · Heavyweight Member Joined: 20 May 2011 Posts: 646

yourbrass · Posted: Sat Oct 04, 2014 6:43 am Post subject:

So how will the casings, which are yellow brass, wear over the long haul w/steel pistons? They are that much softer in comparison w/steel.
Guess we'll have to wait and see.
_________________
"Strive for tone." -John Coppola
Edwards X-13
ACB MV3C /ACB A1/26 backbore
https://yourbrass.com/

jcathey · Regular Member Joined: 21 May 2009 Posts: 68

MacMichael · Heavyweight Member Joined: 20 May 2011 Posts: 646

Yes, and besides, how bad would it be if the pistons were softer than the casings?
Apart from that I believe nobody will wear any piston within one´s lifetime.

yourbrass · Posted: Sat Oct 04, 2014 9:41 am Post subject: