It's enough of a head-scratcher to reverse-engineer in a 5th........

Yours looks REALLY nice.York-aholic wrote: Thu Oct 29, 2020 3:40 pm Only 4 valves, and York body rather than Holton, but same concept. I used King leadpipe, valves (1,2,3 with added 2nd), MTS, dogleg and smallest branch which joined the next York branch perfectly.
I suspect yours will look nicer when you’re done.
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bloke wrote: Thu Oct 29, 2020 5:19 pm I guess I have a question:
If I were to make the #1 slide any longer/taller (and/or totally eliminate the lower slide) will there still be room to remove the UPPER #1 slide (bell clearance issue) ?
I suspect it will look very much like yours, but we'll see.
I'm not sure how much different it could really look, as (again) the Holton bows were possibly (probably?) formed with salvaged/auction-bought/whatever York tooling.
I agree that the two brands look very similar. However, Holton was (I assume) making Monster Ebs long before that (Thinking of Mr. Elephant's tricked out Holton Monster Eb project), so would have had the tooling for at least the bell and bottom bow from that to use towards the BBb. Come to think of it, I seem to remember the TN user PRO having a Holton BBb ("Holton Standard" I think he said) that he said was very similar to mine pictured above. I think it pre-dated York going out of business. Whether Holton had its own tooling or eventually acquired York's when they went out of business, the York and Holton are very similar to each other, as were their Monster Ebs. I tend to think @Yorkboy is on the money. Holton and York did for a partnership very early on. Certainly the companies would have kept tabs on each other's offerings through the years, the same way I am sure Ford looks at Chevy's new models and vice versa.bloke wrote: Fri Oct 30, 2020 9:03 am Thanks for looking into that.
The Grand Rapids York plant was shuttered (mostly, if not completely) about the time (1960’s) that Holton began offering these Collegiate model 19 inch bell short tubas, that – bow wise – seem identical to York B-flats (as well as with the Collegiate E-flats)...but I can only guess or assume.
I'm starting to wonder the same about Lyon & Healy perhaps selling 6/4 bells and the big bows to Holton in the early years, until Holton could get mandrels made. A few posts above this I mentioned a 6/4 L&H bell that very much matches a Holton 340/345 bell (and I'm assuming the earlier Holton Mammoth). Both companies were in Chicago and the L&H 6/4 seems to predate the H. Mammoth.Yorkboy wrote: Fri Oct 30, 2020 1:45 pm I'd suspect that York supplied the larger parts to the new Holton company, at least at the beginning, and maybe as Holton grew, he had his own mandrels made to produce his own parts, based closely on the York formula.
On a tangent, but related:bloke wrote:It’s quite obvious that Holton created their own valve section for this instrument from scratch
On that horn (and the ones I own too), even though 1 through 3 are in a straight line, they are also canted on an angle from front to back, while the "true" vertical set is set at a 90° angle to the tubing and knuckles.York-aholic wrote: Fri Oct 30, 2020 4:06 pm Don’t know why my pictures are all going sideways... just turn your phone, tablet, computer monitor, or head...
1-3 are inline, 4th drops down for pinky. Maybe York went with vertical pistons so Donatelli didn’t have to reach as far.
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Yes, agreed. I maybe imaging this, but wasn’t it you that said there is a variation in this between the 712 and the 716?Yorkboy wrote: Fri Oct 30, 2020 4:21 pm Once (several years ago, before I became interested in such things), my 712 was in the same room as one of the Chicago York tubas, but at the time it didn't come to my mind to compare the valves![]()
Yes, I did say that - the differences are very slight, but noticeable. The valve cluster itself is the same, but is a little more "head-on" on the 716 - also the mouthpipe bends slightly more around the bell, both probably having to do with the ergonomics of what was originally a fixed recording bell instrument. The set on the 712 was a little more "oblique", with a mouthpipe that didn't wrap around quite as closely.York-aholic wrote:Yes, agreed. I maybe imaging this, but wasn’t it you that said there is a variation in this between the 712 and the 716?
bloke wrote: Fri Oct 30, 2020 9:03 am Thanks for looking into that.
The Grand Rapids York plant was shuttered (mostly, if not completely) about the time (1960’s) that Holton began offering these Collegiate model 19 inch bell short tubas, that – bow wise – seem identical to York B-flats (as well as with the Collegiate E-flats)...but I can only guess or assume.