So your second valve is going to be a flattened half step in order to make it a full half step when engaged with the F valve, because when you use multiple valves at once, the result is sharp. One valve on something like a trumpet, euphonium or tuba is pitched correctly, but when you add valves to other valves, the result is sharp. Commonly dependant valve bass trombones will have a flat 2nd valve in order to have the result not be a sharp first position note. Wonderful example of an olds bass trombone. I played one just like it in high school.
I love this guys videos. Helped me figure out what was wrong with my sousaphone. All it took was cleaning the casing on the 3rd valve and then it was wayyyyyyty better
(On Trombones) Whenever you engage a valve you also lose a position due to the need of a longer tube to be in tune. With the F trigger engaged, you have only 6 (usable) positions now, each a bit longer/farther out than before (with 7 positions). With both triggers engaged, you have 5 positions, all even longer than before.
If you look at the neck of a bass guitar, you see the frets are farther apart at the head than the body. The lower the note, the more distance between frets. Same on a trombone with its lower notes, more slide length between notes. That is why the Eb tubing is longer than a first valve tubing. Some F attachments have a long tuning slide so you can add the extra length to reach low B, usually not attanible with the normal slide lengths.
I noticed you said you use your smaller dent roller for trumpets and the other for low brass. I was wondering if you ever use one on French horns or if you have another method?
It's hard to be precise in my measurement, but the (dependent) Eb valve in my Bach 50B bass trombone measures about 14.5 inches - not counting the valve itself. I usually pull the tuning slide out about 1/2 to 3/4 of an inch. I almost never play a low Eb in 1st position with both valves. I prefer having more tuning flexibility with the hand slide, playing low Eb in 3rd position. But I do like the flexibility the two valves provide in playing low Db, C, and B.
I have an Olds S-23; the same as you're restoring. My serial number suggests late 1950s. Love watching this.
I just bought one also; I have not been able to determine the manufacture date, however.
So your second valve is going to be a flattened half step in order to make it a full half step when engaged with the F valve, because when you use multiple valves at once, the result is sharp. One valve on something like a trumpet, euphonium or tuba is pitched correctly, but when you add valves to other valves, the result is sharp. Commonly dependant valve bass trombones will have a flat 2nd valve in order to have the result not be a sharp first position note. Wonderful example of an olds bass trombone. I played one just like it in high school.
I love this guys videos. Helped me figure out what was wrong with my sousaphone. All it took was cleaning the casing on the 3rd valve and then it was wayyyyyyty better
I just found your channel here on UA-cam. Really enjoying it so far. Thanks for sharing.
(On Trombones) Whenever you engage a valve you also lose a position due to the need of a longer tube to be in tune. With the F trigger engaged, you have only 6 (usable) positions now, each a bit longer/farther out than before (with 7 positions). With both triggers engaged, you have 5 positions, all even longer than before.
If you look at the neck of a bass guitar, you see the frets are farther apart at the head than the body. The lower the note, the more distance between frets. Same on a trombone with its lower notes, more slide length between notes. That is why the Eb tubing is longer than a first valve tubing. Some F attachments have a long tuning slide so you can add the extra length to reach low B, usually not attanible with the normal slide lengths.
On the rippling of the bell. I've found that I can control and use a wallpaper seam roller to work out the ripples.
I noticed you said you use your smaller dent roller for trumpets and the other for low brass. I was wondering if you ever use one on French horns or if you have another method?
Yes, I use the larger one on french horn bells all the time.
It looks like its about the same length of the 1st valve of a f tuba so it looks to me like 1 whole step with the f rotor engaged
It's hard to be precise in my measurement, but the (dependent) Eb valve in my Bach 50B bass trombone measures about 14.5 inches - not counting the valve itself. I usually pull the tuning slide out about 1/2 to 3/4 of an inch. I almost never play a low Eb in 1st position with both valves. I prefer having more tuning flexibility with the hand slide, playing low Eb in 3rd position. But I do like the flexibility the two valves provide in playing low Db, C, and B.
What are the chemicals you use?
Nevermind... I read the description! Thanks!