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Author Topic: JP Rath 236 Alto Leadpipe  (Read 426 times)
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« on: Feb 09, 2018, 05:30PM »

Just curious... Has anyone tried changing the lead pipe on a JP Path 236 Alto? Is there even an aftermarket pipe that exists?
Thank you in advance for your responses.
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Matt K

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« Reply #1 on: Feb 09, 2018, 07:59PM »

You might want to check with horn guys, who sell the Stauffer brass pipe or Brassark who offer both a Selman replacement pipe but as a one-piece leadpipe as well as a one piece version of a 2b pipe that also happens to be the same bore size as the JP Rath you have.  I don't know for sure about their alto replacements, but the King one should fit.
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What's in a name? that which we call a tenor-bass posaune
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« Reply #2 on: Feb 10, 2018, 02:17AM »

talk with Noah from Brassark, i think he can help
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T.Mittag custom alto
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« Reply #3 on: Feb 11, 2018, 07:09AM »

Hi, is there a problem with the leadpipe on the JP236?
Also curious to know which mouthpiece you might be using.
Stephen
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« Reply #4 on: Feb 12, 2018, 04:46PM »

There's no problem with the existing lead pipe. The 236 is a very, very good instrument for the money. I'm just curious to see if a different leadpipe might bring about  a change in response, or bring the partials a little better in line, or broaden the sound of the lowest notes. Switching to a BrassArk MV42 copper pipe on my Shires gave me exactly what I was looking for with that instrument.
I use a Bach MV 19 or MV 15C. The 19 gives me a beautiful clear, ringing sound that works perfectly for Mendelssohn 5. The 15C is a little fatter sound, takes a little off the attacks, but is still (IMHO) very characteristic.
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Shires TruBore .547
3B Silversonic (1975)
2B Liberty (1952)
JP Rath 236 Alto
Couesnon Valve Trombone
pBone - White
Yamaha 842S Euphonium
Conn 60i Double-Bell Euphonium (1927)
heinz gries

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« Reply #5 on: Feb 13, 2018, 01:20AM »

The brassark copper leadpipe is a great deal. I have one in my Helmut Voigt alto.
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T.Mittag custom alto
Helmut Voigt alto with modified 36 Bach slide,brassark copper leadpipe
Conn 34H alto in D
Courtois alto
Bach LT6,gold plated,Hoelle copper tuningslide.
Getzen Super deluxe silver plated,copper rim bell
Getzen 3508R
Matt K

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« Reply #6 on: Feb 13, 2018, 06:10AM »

The brassark copper leadpipe is a great deal. I have one in my Helmut Voigt alto.

Which taper are you using ?
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What's in a name? that which we call a tenor-bass posaune
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« Reply #7 on: Feb 13, 2018, 09:54AM »

Which taper are you using ?

Its a Helmut Voigt big bore bell section with a modified 36 Bach slide.
i use a brassark MV36 copper leadpipe.
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T.Mittag custom alto
Helmut Voigt alto with modified 36 Bach slide,brassark copper leadpipe
Conn 34H alto in D
Courtois alto
Bach LT6,gold plated,Hoelle copper tuningslide.
Getzen Super deluxe silver plated,copper rim bell
Getzen 3508R
Matt K

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« Reply #8 on: Feb 13, 2018, 10:03AM »

Its a Helmut Voigt big bore bell section with a modified 36 Bach slide.
i use a brassark MV36 copper leadpipe.

AGH, I was afraid of that.  Now I want to try one in my Wessex...
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What's in a name? that which we call a tenor-bass posaune
By any other name would smell as sweet;
heinz gries

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« Reply #9 on: Feb 13, 2018, 10:25AM »

i think the MV36 leadpipe will fit the Wessex alto, 0.525 bore on the leadpipe side
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T.Mittag custom alto
Helmut Voigt alto with modified 36 Bach slide,brassark copper leadpipe
Conn 34H alto in D
Courtois alto
Bach LT6,gold plated,Hoelle copper tuningslide.
Getzen Super deluxe silver plated,copper rim bell
Getzen 3508R
Matt K

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« Reply #10 on: Feb 13, 2018, 11:06AM »

i think the MV36 leadpipe will fit the Wessex alto, 0.525 bore on the leadpipe side

It most certainly will!Fits my Conn 52H leadpipe fine.  The receiver is a little weird. Thought about replacing it with a Shires cork barrel.  I think I have a spare one lying around anyway.  Would allow for large shank mouthpieces too... which would be totally bizarre but potentially really cool at the same time.
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What's in a name? that which we call a tenor-bass posaune
By any other name would smell as sweet;
heinz gries

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« Reply #11 on: Feb 13, 2018, 01:29PM »

It most certainly will!Fits my Conn 52H leadpipe fine.  The receiver is a little weird. Thought about replacing it with a Shires cork barrel.  I think I have a spare one lying around anyway.  Would allow for large shank mouthpieces too... which would be totally bizarre but potentially really cool at the same time.

an alto with a large shank mouthpiece. That excites me. Is there a large shank leadpipe, which fit into
a 36 Bach slide?
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T.Mittag custom alto
Helmut Voigt alto with modified 36 Bach slide,brassark copper leadpipe
Conn 34H alto in D
Courtois alto
Bach LT6,gold plated,Hoelle copper tuningslide.
Getzen Super deluxe silver plated,copper rim bell
Getzen 3508R
Matt K

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« Reply #12 on: Feb 13, 2018, 02:04PM »

an alto with a large shank mouthpiece. That excites me. Is there a large shank leadpipe, which fit into
a 36 Bach slide?

Yes and no.  There's no reason that a leadpipe wouldn't fit into the inner slide (it is 525 at it's narrowest diameter at least theoretically). However, there is something about the stock configuration (the part above the cork barrel memory serving) that makes it too narrow.  You'd have to replace that part in order for it to fit.  I have a 525/547 slide that has a Xeno (from the 547 horn) and a Shires leadpipe collar that works well with both large and small shank pipes so maybe swapping it out for a 42 or similar cork barrel part would solve it.  I like the collars personally. I think Instrument Innvoations is selling their bi-thread collars now too (that will accept coarse and fine threaded leadpipes) which would also be a cool thing to have on the alto. Would be maybe a few hundred total to add a collar etc. but I've always preferred a collared leadpipe to a pressfit one.  That is bias though. I've always had slide work done simultaneously so it's hard to definitively say if I actually liked the collar or having a clean slide. I tend to think the latter. But for convenience, the threads are hard to beat.
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What's in a name? that which we call a tenor-bass posaune
By any other name would smell as sweet;
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