Does anyone know if you could order factory vented rotors from B&S? .. specifically during the Custom Music Perantucci era
My son's tuba has all 5 rotors vented and they are very well done.. trying to figure out if they are factory or after sale modification. If they were done aftermarket they must have been done off the instrument..
Just a curiosity.. Looking at previous for sale listings of B&S instructs very few mention venting and I don't see it listed on any of the Custom Music material.
B&S Vented Rotors
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gocsick
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B&S Vented Rotors
As amateur as they come...I know just enough to be dangerous.
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bort2.0
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Re: B&S Vented Rotors
My old PT-6 had factory vented rotary valves.
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gocsick
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Re: B&S Vented Rotors
Thanks ... That's good info..
As amateur as they come...I know just enough to be dangerous.
Meinl-Weston 20
Holton Medium Eb 3+1
Holton Collegiate Sousas in Eb and BBb
Conn 20J
and whole bunch of other "Stuff"
Meinl-Weston 20
Holton Medium Eb 3+1
Holton Collegiate Sousas in Eb and BBb
Conn 20J
and whole bunch of other "Stuff"
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Misfituba64
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Re: B&S Vented Rotors
Hopefully Mr. Tucci can weigh in on this.
My understanding is that B&S did not factory-vent their rotary valves, or at least did not do so consistently. There are technicians, Dana Hofer being one example, who have the equipment and process to vent rotors in a way that closely resembles factory work, so it is possible that a particular instrument was modified that way. That said, my understanding is that most rotor venting is typically done aftermarket with a drill and bit.
For reference, I own a 1991 B&S Rotor C that was not factory vented. I also know that the PT-6 previously owned by Bort was not factory vented either; that venting was added later as an aftermarket modification.
If you have the serial number email Bob Tucci he can give you better clarity than anyone here.
My understanding is that B&S did not factory-vent their rotary valves, or at least did not do so consistently. There are technicians, Dana Hofer being one example, who have the equipment and process to vent rotors in a way that closely resembles factory work, so it is possible that a particular instrument was modified that way. That said, my understanding is that most rotor venting is typically done aftermarket with a drill and bit.
For reference, I own a 1991 B&S Rotor C that was not factory vented. I also know that the PT-6 previously owned by Bort was not factory vented either; that venting was added later as an aftermarket modification.
If you have the serial number email Bob Tucci he can give you better clarity than anyone here.
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- gocsick (Sun Apr 12, 2026 8:59 pm)
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bort2.0
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Re: B&S Vented Rotors
Hrmm. Ok, well, I thought it was.
Also, I think the #2 rotor (only) on my Neptune was vented, because that valve had a 2nd slide kicker attached to it.
I guess it all blurs together, it's been a little while.
Also, I think the #2 rotor (only) on my Neptune was vented, because that valve had a 2nd slide kicker attached to it.
I guess it all blurs together, it's been a little while.