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Yamaha YTR-635 (NOT Flugelhorn)


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AlfaFreak
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PostPosted: Fri Sep 20, 2013 3:50 pm    Post subject: Yamaha YTR-635 (NOT Flugelhorn) Reply with quote

Hi people,

Looking for help to figure specs and info for a Yamaha YTR-635.
I've not come across any info online or mention of this model previously.

Photos posted soon.
Definitely not at typo for 634 or 632, and not a 635 flugelhorn.

Cheers.
YamahaCollector.
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Last edited by AlfaFreak on Fri Sep 20, 2013 9:28 pm; edited 1 time in total
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Roberts-K
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PostPosted: Fri Sep 20, 2013 7:11 pm    Post subject: Reply with quote

The 635 was the precursor for the Bobby Shew model, which is to my understanding pretty much same specs as 6310Z flugel. True small bore (.413 I think), the 631/731 are .433 like the Couesnon 140N models. They were Couesnon based and the 635 was more of a pro small bore horn.
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AlfaFreak
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PostPosted: Fri Sep 20, 2013 8:03 pm    Post subject: Reply with quote

635 "Trumpet" NOT flugelhorn
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ghelbig
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PostPosted: Sat Sep 21, 2013 8:24 am    Post subject: Re: Yamaha YTR-635 (NOT Flugelhorn) Reply with quote

AlfaFreak wrote:
Looking for help to figure specs and info for a Yamaha YTR-635.
Definitely not at typo for 634 or 632, and not a 635 flugelhorn.


Not a YTR-636? Sometimes a smudged-up 6 can look like a 5.

The YTR-636 is a small-bore Schilke clone. But you knew that.

G.
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AlfaFreak
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PostPosted: Tue Sep 24, 2013 1:13 pm    Post subject: Reply with quote

Identified as a YTR-635, it has all the hallmarks of an instrument produced in the period of 1969-1970, two piece valve casing, Yamaha "Lozenge" on the valve casing reverse, hand stamped model and serial number, 5 digit serial. These photos were supplied to me by a curious follower so i don not have physical access to measure the bore or any other measurements. On appearances the bell and leadpipe are both red brass.

Not having seem this model before, or having seen it listed in any catalog I can only assume that it is a prototype that never made it to full production? I have gone back and re-read all of the Schilke Loyalist information about the way R.Schilke worked and it seems this would fit into being one of his prototypes.

Has anyone else got any ideas or information about this model?











Cheers
YamahaCollector
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JonathanM
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PostPosted: Tue Sep 24, 2013 3:07 pm    Post subject: Reply with quote

There's just a tiny bit of info at this site; perhaps you've seen or even entered the info since the site is in your signature and, with further looks, seems to be your horn and your pics.
https://docs.google.com/spreadsheet/pub?key=0Akv_ASR_Op_KdE9XWWw4U054V0FBTHVrWnJjZTNIN2c&output=html

I'm guessing that it's something along the lines of the 6335 models, probably a precursor to those?

I've not found Yamaha to be consistent in their model number identification system; often (arbirtrarily?) omitting the "S" that would indicate "Silver". And soooooo many models do make following and identifying them all a bit challenging.

That is a good looking horn; I've always liked the non-silver plated look of horns like yours.
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AlfaFreak
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PostPosted: Tue Sep 24, 2013 3:55 pm    Post subject: Reply with quote

Hi Jonothan,
Yes, that's my spreadsheet, and yes I had updated it just prior to posting these pics.

Cheers
YamahaCollector
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ghelbig
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PostPosted: Tue Sep 24, 2013 4:26 pm    Post subject: Reply with quote

AlfaFreak wrote:
Has anyone else got any ideas or information about this model?


Except for the lozenge and the copper (rose?) bell, it looks remarkably like a YTR-636. Or a trumpet version of a YCR-631.

Alas, I only have ideas, not information.

Gary.
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p76
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PostPosted: Tue Sep 24, 2013 4:35 pm    Post subject: Reply with quote

Wow, AlfaFreak, very very interesting.

In terms of exterior construction it's very similar to my early 634, except I have the Benge style third slide stop rod. The use of the different types of brass is exactly the same as my 634.

Also, the double case is exactly the same as the one that came with my 634

The use of the odd number is unusual that early, as all other models ended in even numbers at that stage?

A bore size measurement would be interesting to see.

Cheers,
Roger
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AlfaFreak
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PostPosted: Tue Sep 24, 2013 4:48 pm    Post subject: Reply with quote

Hi Roger,

Yes, very similar to your one, which I now classify as a "Series 1" version of this instrument. I've done bit of a development time line for the 632 model but the 634 is follows this identically too. Found here.

Note that these 2 piece valve casing were continued in the 900 "Custom" series models until at least 1974, where as the 3rd series 634/734 got the single piece all brass casings.

Because this YTR-635 is not mine and I don't have physical access to the instrument I can not measure the bore unfortunately.

If it proves to be a prototype that failed to make the production grade, it raises the question of whether a YTR-633 may exist also filling the gap between the known models.

Ill have to pay more attention to the odd/even serial number thing and see what may lay there, very Ferrari-esque with racing and non-racing chassis numbers.

Cheers
YamahaCollector
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p76
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PostPosted: Tue Sep 24, 2013 5:03 pm    Post subject: Reply with quote

Great timeline, hadn't caught up with that before.

It's hard to think what it could be other than a prototype - they already had the M, ML, and L covered with the 2, 4, and 8 models.

Did they make a L Bore with a Copper Bell at that time - maybe it's a go at one?

Cheers,
Roger
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MRtpt
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PostPosted: Wed Sep 25, 2013 6:58 pm    Post subject: ytr 635 Reply with quote

Perhaps a prototype of the 639? Large bore with copper bell....schilke b3 ish.

I have a couple of catalogs from this and it's not in either. Interesting horn though.
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AlfaFreak
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PostPosted: Wed Sep 25, 2013 7:18 pm    Post subject: Reply with quote

To clarify some ideas in my own head I've drawn up a rough timeline for the 3 digit model number trumpets.



What is interesting to me is that the YTR-736 is available in 1974 before the 732 has been discontinued.

The fact that a L bore model, the 738 becomes available also in 1974 suggests that this "YTR-635" in question might be the ill fated L bore, red brass bell cousin seems plausible, especially with the chronology of the model numbers.

One small issue of confusion for me exists with one of the catalogs i have to reference being W-42L. This catalog lists the YTR-736 as a Large bore model rather than a medium along with a few other inconsistencies.

Cheers for now
YamahaCollector
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MRtpt
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PostPosted: Wed Sep 25, 2013 7:20 pm    Post subject: ytr 635 Reply with quote

Perhaps a prototype of the 639? Large bore with copper bell....schilke b3 ish.

I have a couple of catalogs from this and it's not in either. Interesting horn though.
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AlfaFreak
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PostPosted: Wed Sep 25, 2013 7:20 pm    Post subject: Reply with quote

Hi MRtpt: It would be fantastic to get a pdf copy of any of the catalogs you have that relate to these instruments.

Cheers
YamahaCollector
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MRtpt
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PostPosted: Wed Sep 25, 2013 7:26 pm    Post subject: ytr 635 Reply with quote

Perhaps a prototype of the 639? Large bore with copper bell....schilke b3 ish.

I have a couple of catalogs from this and it's not in either. Interesting horn though.
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MRtpt
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PostPosted: Wed Sep 25, 2013 7:28 pm    Post subject: Yamaha catalog Reply with quote

I will attempt to get you a copy

Mr
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AlfaFreak
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PostPosted: Wed Sep 25, 2013 7:31 pm    Post subject: Reply with quote

Great and thanks
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AlfaFreak
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PostPosted: Wed Sep 25, 2013 11:03 pm    Post subject: Reply with quote

After thinking about the possibility that the 635 might fill the number gap between the 634 and 636 I did a search for a YTR-633 and behold, I found this.

If this is a genuine item, would be interested in tracking this further.
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p76
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PostPosted: Thu Sep 26, 2013 3:37 pm    Post subject: Reply with quote

AlfaFreak wrote:
After thinking about the possibility that the 635 might fill the number gap between the 634 and 636 I did a search for a YTR-633 and behold, I found this.

If this is a genuine item, would be interested in tracking this further.


That is interesting - looks like yellow brass two piece large bell, and by your studies an early one with the two piece valve casings.

Given the paucity of European members of this forum, the question arises as to whether there was a line of models that only got sold there?

Cheers,
Roger
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