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polhorn Regular Member
Joined: 15 Dec 2018 Posts: 13
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polhorn Regular Member
Joined: 15 Dec 2018 Posts: 13
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Posted: Thu Mar 30, 2023 7:30 am Post subject: |
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Hi. I have such one for sale. Bell is 5" bore is 11,68mm. |
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Brassnose Heavyweight Member
Joined: 07 Mar 2016 Posts: 2047 Location: Germany
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Posted: Thu Mar 30, 2023 9:40 am Post subject: |
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I have a 634 which looks EXACTLY like the 635 on the previous page. The claim on another TH thread is that the 634 also has an ML bore and a 5 in bell, like polhorn stated for his 635. Could it be that the 634 and 635 differ in their bell shape or leadpipe taper?
The slides on my 634 are stuck and I need to have it cleaned so I cannot comment on the bore right now. _________________ 2019 Martin Schmidt eXcellence
1992 Bach 43GH/43
1989 Kühnl & Hoyer Model 15 flugel
1980/2023 Custom Blessing Scholastic C 😎
1977 Conn 6B
1951 Buescher 400 Lightweight
AR Resonance, Frate, Klier |
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Brassnose Heavyweight Member
Joined: 07 Mar 2016 Posts: 2047 Location: Germany
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polhorn Regular Member
Joined: 15 Dec 2018 Posts: 13
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Posted: Thu Mar 30, 2023 9:46 am Post subject: |
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Yes, it's my add |
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ProAm Heavyweight Member
Joined: 05 Feb 2008 Posts: 949
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Posted: Thu Mar 30, 2023 5:55 pm Post subject: |
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Interesting that the horn listed by polhorn is serial number 09422 and the one listed in the original posts from 10 years ago is 09425. That makes me think there were not many made.
Those old Yamahas are still good value horns. I have a 636 that is in kind of rough shape but plays well. |
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Brassnose Heavyweight Member
Joined: 07 Mar 2016 Posts: 2047 Location: Germany
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Posted: Thu Mar 30, 2023 7:53 pm Post subject: |
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Yeah, I need to look up the serial on my 634, could be in the same range. And yes, those are interesting horns. I still need to get to know mine better, somehow it plays a LOT different than my Bach. I was recently tempted by a 636 and a 732 that showed up shortly after one another - would have been very interesting to compare the three, but was too slow, so someone else got a great deal on the 636 and a pretty good deal on the 732.
Anyway, back to the original question: does anyone know for sure what the diff between the 635 and the other three-digit horns is? _________________ 2019 Martin Schmidt eXcellence
1992 Bach 43GH/43
1989 Kühnl & Hoyer Model 15 flugel
1980/2023 Custom Blessing Scholastic C 😎
1977 Conn 6B
1951 Buescher 400 Lightweight
AR Resonance, Frate, Klier |
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cjl Heavyweight Member
Joined: 11 Apr 2005 Posts: 2421 Location: TN
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Posted: Fri Mar 31, 2023 5:53 am Post subject: |
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Years ago I collected the info from Yamaha about their older models from their website and made a chart of my own comparing them to Schilke models based on bore size.
I didn't see anything about a model 635 back then. Is there a missing Schilke model that the 635 could have been based on?
Also note differences like between the Yamaha 632 and 636. They are both M bores but the 632 is red brass while the 636 is yellow. Also, the 632 started earlier. The 632 and 636 might have both been available in 1976 or the 632 might have ended when the 636 was released. The 634 and 637 overlapped for a couple of years.
I always thought of the 7 series to be just silver plated versions of the 6 series but the specs for the 732 say yellow brass instead of red. It is possible that the Yamaha website listed yellow for the 732 incorrectly since there is appears to be no difference in stated specs for the 732 and 736 but they were both apparently produced in 1976-1978.
-- Joe
Yamaha 3-Digit Bb Models
Lacquer
Bore = M Schilke equivalent: B6
Model: YTR-632 Years: 1969-1976 Key: Bb Bore: .445" Bell Size: 5" Material: Red Brass Finish: Lacquer Weight: Light Current Model: YTR-6310Z
Model: YTR-636 Years: 1976-1984 Key: Bb Bore: .445" Bell Size: 5" Material: Yellow Brass Finish: Lacquer Weight: Light Current Model: YTR-6310Z
Bore = ML Schilke equivalent: B5
Model: YTR-634 Years: 1969-1978 Key: Bb Bore: .460" Bell Size: 5" Material: Red Brass Finish: Lacquer Weight: Light Current Model: YTR-6335
Model: YTR-637 Years: 1976-1984 Key: Bb Bore: .460" Bell Size: 5" Material: Yellow Brass Finish: Lacquer Weight: Light Current Model: YTR-6335
Bore = L Schilke equivalent: B3
Model: YTR-639 Years: 1976-1984 Key: Bb Bore: .463" Bell Size: 4-7/8" Material: Gold Brass Finish: Lacquer Weight: Light Current Model: YTR-6345
Silver
Bore = M Schilke equivalent: B6
Model: YTR-732 Years: 1969-1978 Key: Bb Bore: .445" Bell Size: 5" Material: Yellow Brass Finish: Silver Weight: Light Current Model: YTR-6310ZS
Model: YTR-736 Years: 1976-1984 Key: Bb Bore: .445" Bell Size: 5" Material: Yellow Brass Finish: Silver Weight: Light Current Model: YTR-6310ZS
Bore = ML Schilke equivalent: B5
Model: YTR-734 Years: 1969-1978 Key: Bb Bore: .460" Bell Size: 5" Material: Yellow Brass Finish: Silver Weight: Light Current Model: YTR-6335S
Model: YTR-737 Years: 1976-1984 Key: Bb Bore: .460" Bell Size: 5" Material: Yellow Brass Finish: Silver Weight: Light Current Model: YTR-6335S
Bore = L Schilke equivalent: X3
Model: YTR-738 Years: 1974-1984 Key: Bb Bore: .463" Bell Size: 5" Material: Yellow Brass Finish: Silver Weight: Light Current Model: YTR-6345GS
Bore = L Schilke equivalent: B3
Model: YTR-739T Years: 1976-1984 Key: Bb Bore: .463" Bell Size: 4-7/8" Material: Gold Brass Finish: Silver Weight: Light Current Model: YTR-6345GS |
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