Determining Bore Size..

mbtpter227 · 02-05-2007, 12:14 PM

Sorry if this is a stupid question, but how do you determine the bore size in an LA-era Benge Bb trumpet? (Serial #27XXX)

Thanks guys.

Richard Oliver · 02-05-2007, 12:53 PM

Matt,

Look at the valve casing. Do you see an ML, MLP, or L, or CG there?

I've forgotten the bore sizes, and the specifics of the CG step bore.

http://www.dallasmusic.org/gearhead/Benge.html

That link should get you started.

All the Best,

Richard

mbtpter227 · 02-06-2007, 01:03 AM

Thanks Richard.

I found that the valve casing reads "ML." This must mean that it is a medium-large bore, correct?

I still can't figure out what type of trumpet it is (2x, 3x, 4x, 5x).

I'm putting a wild guess that it's a 3x, haha.

Richard Oliver · 02-06-2007, 01:56 AM

Matt,

I've flat out forgotten if the # 3, 4, 5, etc appears on the bell.

Someone in here will no for sure. Find some posts by topo3man, and pm him.

He's a fine gent and loves Benges. He'll know, as will others in here.

Richard

gtromble · 02-06-2007, 07:12 AM

On the LA Benges, the number is probably stamped on the bell. All the ones I have owned have had that -- most 3, one 5. My Burbank Benge does not have the number on the bell, though the bell flare looks like a 5. The huge majority of Benges produced were the 3 bell.

The ML bore is .460.

The standard way to measure the bore is to measure the inside diameter at the 2nd valve slide with a pair of calipers.

GT

Dave Mickley · 02-06-2007, 08:08 AM

if the number is not stamped on the bell, it will be on the ferrel that connects the bell to the 1st valve. Dave

mbtpter227 · 02-06-2007, 08:13 PM

It turns out to be a 3, just as I guessed.

Thanks for the help

02-05-2007, 12:14 PM	#1 (permalink)
mbtpter227 New Friend Join Date: Feb 2007 Location: So-Cal Brand: Benge/Schilke Posts: 33	Determining Bore Size.. Sorry if this is a stupid question, but how do you determine the bore size in an LA-era Benge Bb trumpet? (Serial #27XXX) Thanks guys.
	__________________ -Matt "Music is your own experience, your thoughts, your wisdom. If you don't live it, it won't come out of your horn. They teach you there's a boundary line to music. But, man, there's no boundary line to art." -Charlie Parker horn: '79 Benge 3x MP: Schilke 17, Bach 3C

02-05-2007, 12:53 PM	#2 (permalink)
Richard Oliver Forte User Join Date: Jul 2006 Location: Casper, WY Posts: 1,189	Re: Determining Bore Size.. Matt, Look at the valve casing. Do you see an ML, MLP, or L, or CG there? I've forgotten the bore sizes, and the specifics of the CG step bore. http://www.dallasmusic.org/gearhead/Benge.html That link should get you started. All the Best, Richard

02-06-2007, 01:03 AM	#3 (permalink)
mbtpter227 New Friend Join Date: Feb 2007 Location: So-Cal Brand: Benge/Schilke Posts: 33	Re: Determining Bore Size.. Thanks Richard. I found that the valve casing reads "ML." This must mean that it is a medium-large bore, correct? I still can't figure out what type of trumpet it is (2x, 3x, 4x, 5x). I'm putting a wild guess that it's a 3x, haha.
	__________________ -Matt "Music is your own experience, your thoughts, your wisdom. If you don't live it, it won't come out of your horn. They teach you there's a boundary line to music. But, man, there's no boundary line to art." -Charlie Parker horn: '79 Benge 3x MP: Schilke 17, Bach 3C

02-06-2007, 01:56 AM	#4 (permalink)
Richard Oliver Forte User Join Date: Jul 2006 Location: Casper, WY Posts: 1,189	Re: Determining Bore Size.. Matt, I've flat out forgotten if the # 3, 4, 5, etc appears on the bell. Someone in here will no for sure. Find some posts by topo3man, and pm him. He's a fine gent and loves Benges. He'll know, as will others in here. Richard

02-06-2007, 07:12 AM	#5 (permalink)
gtromble Pianissimo User Join Date: Dec 2005 Posts: 171	Re: Determining Bore Size.. On the LA Benges, the number is probably stamped on the bell. All the ones I have owned have had that -- most 3, one 5. My Burbank Benge does not have the number on the bell, though the bell flare looks like a 5. The huge majority of Benges produced were the 3 bell. The ML bore is .460. The standard way to measure the bore is to measure the inside diameter at the 2nd valve slide with a pair of calipers. GT
	__________________ Galen Tromble Silver Spring, MD

02-06-2007, 08:08 AM	#6 (permalink)
Dave Mickley Piano User Join Date: Nov 2005 Location: Indianapolis Posts: 374	Re: Determining Bore Size.. if the number is not stamped on the bell, it will be on the ferrel that connects the bell to the 1st valve. Dave
	__________________ formerly known as old geezer Dave C7 Yam. 231 Fl. 15383 King Master Cornet 295628 Weril Cornet Lo 7535

02-06-2007, 08:13 PM	#7 (permalink)
mbtpter227 New Friend Join Date: Feb 2007 Location: So-Cal Brand: Benge/Schilke Posts: 33	Re: Determining Bore Size.. It turns out to be a 3, just as I guessed. Thanks for the help
	__________________ -Matt "Music is your own experience, your thoughts, your wisdom. If you don't live it, it won't come out of your horn. They teach you there's a boundary line to music. But, man, there's no boundary line to art." -Charlie Parker horn: '79 Benge 3x MP: Schilke 17, Bach 3C

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