Did you know?
- dukesboneman
- Posts: 935
- Joined: Apr 02, 2018
Did you know that the "F" tuning slide on a Bach 42BO is the same width as a Hand slide on a Bach 12?
I wonder if they use the same crook?
I was toying with the idea of getting one of the Ralph Sauer Braces for the tuning slide on my 42BO and wanted to measure it and lo and behold.... same size
I wonder if they use the same crook?
I was toying with the idea of getting one of the Ralph Sauer Braces for the tuning slide on my 42BO and wanted to measure it and lo and behold.... same size
- ithinknot
- Posts: 1339
- Joined: Jul 24, 2020
No, different bores. If the same radii, they could be hand bent around the same jig, but they'd still need hydro forming or ball-bearing-ing out in different form blocks.
F wrap bore on a 42 is .562", isn't it?
According to the Peppy mounting chart, a 12 crook should be .536" (might not be more recently with post-MV parts consolidation).
F wrap bore on a 42 is .562", isn't it?
According to the Peppy mounting chart, a 12 crook should be .536" (might not be more recently with post-MV parts consolidation).
- Peacemate
- Posts: 125
- Joined: Apr 07, 2020
A thing I have noticed is that Bach likes to reuse parts. I think that the tuning slide crooks on the 50b3o are just the wide bend of the stock 50b's wrap. That's why those ferrules sits so incredibly far down.
42BO definitely is different from the 42B's bend though.
42BO definitely is different from the 42B's bend though.
- Burgerbob
- Posts: 6327
- Joined: Apr 23, 2018
The offset going back into the valve (the small twice-bent piece) on the 42BO is actually a valve offset from the 50B2. It's a .593 part!!
- Crazy4Tbone86
- Posts: 1654
- Joined: Jan 14, 2020
That same offset part is also used on the Bach 36BO. In theory, it is “double oversized” for the 36. However, all of the rotor and F-attachment parts for the 36 and 42 are identical, so it is actually a “single oversizing.”
- Crazy4Tbone86
- Posts: 1654
- Joined: Jan 14, 2020
There are a lot of oddities in the instrument design/manufacturing business. For example:
*Bach Strad ML (.459 bore) trumpets have the same outer tuning slide parts as the L (.462 bore) trumpets. They just made the inner tuning slide metal thinner on the L parts.
*The outer slide for the King 2B is the same part for the upper and lower slide, even though the upper slide is .480 and the lower slide is .489. The just made the stocking thicker on the upper slide.
*For many years, the Olds trumpets from the artist models down through the student models (Ambassador) used about 75-80% of the same parts. This is the reason that some people have called the Ambassador the “greatest student trumpet that was ever made.”
*Bach Strad ML (.459 bore) trumpets have the same outer tuning slide parts as the L (.462 bore) trumpets. They just made the inner tuning slide metal thinner on the L parts.
*The outer slide for the King 2B is the same part for the upper and lower slide, even though the upper slide is .480 and the lower slide is .489. The just made the stocking thicker on the upper slide.
*For many years, the Olds trumpets from the artist models down through the student models (Ambassador) used about 75-80% of the same parts. This is the reason that some people have called the Ambassador the “greatest student trumpet that was ever made.”