Yamaha YSL 646 / 356G rotor / tubing sizes

Post Reply
User avatar
Matt K
Verified
Posts: 3945
Joined: Tue Mar 20, 2018 10:34 pm
Contact:

Yamaha YSL 646 / 356G rotor / tubing sizes

Post by Matt K »

Anyone happen to know what the bore size of the rotors/tubing is for these models? I suspect it's either .530 or .547 but I couldn't find any information on the Yamaha 24x7 page (unless it's looking right at me, I'm not used to reading engineering schematics).
marccromme
Posts: 325
Joined: Fri Mar 30, 2018 7:03 am
Location: Copenhagen, Denmark
Contact:

Re: Yamaha YSL 646 / 356G rotor / tubing sizes

Post by marccromme »

I have a YSL 356G, it measures 13.9 mm inside the F tuning slide - 0.547" - no idea about the YSL 646G, but since Yamaha as a tendency to re-use parts, it seems reasonable to assume it's the same.

Known differences are:

YSL 356G has 204.4mm(8'')rose-brass bell and dual 12.7-13.34mm (0.5-0.525") slide

YSL 646G has 214.4mm (8 1/2") yellow-brass bell and ML 13.34mm (0.525") slide (same as YSL-446G and YSL-620 )
User avatar
LeoInFL
Posts: 238
Joined: Thu Apr 19, 2018 4:24 am
Location: Orlando, FL

Re: Yamaha YSL 646 / 356G rotor / tubing sizes

Post by LeoInFL »

I have a 646. Give me a second to check.
LeoInFL
Getzen 4047DS :
~Bousfield S
~Conn 5G | Edwards .525"
Olds P-24G : G&W Mark-1 | Wessex .555"
Melton 41 F Cimbasso : DE CB S118_L*_L16Am
Holton 77 Fr Horn : Laskey 825G

CFCA Symphony Orch
(2016-present)
User avatar
BGuttman
Posts: 5897
Joined: Thu Mar 22, 2018 7:19 am
Location: Cow Hampshire

Re: Yamaha YSL 646 / 356G rotor / tubing sizes

Post by BGuttman »

marccromme wrote: Fri Apr 23, 2021 2:35 pm ...

YSL 646G has 214.4mm (8 1/2") yellow-brass bell and ML 13.34mm (0.525") slide (same as YSL-446G and YSL-620 )
I thought YSL-620 has the 13.9 mm slide like the 682 it replaced. The 13.3 mm slide would have gone on the 630 and 640.
Bruce Guttman
Merrimack Valley Philharmonic Orchestra
"Almost Professional"
User avatar
LeoInFL
Posts: 238
Joined: Thu Apr 19, 2018 4:24 am
Location: Orlando, FL

Re: Yamaha YSL 646 / 356G rotor / tubing sizes

Post by LeoInFL »

Yes, it's 0.547.
LeoInFL
Getzen 4047DS :
~Bousfield S
~Conn 5G | Edwards .525"
Olds P-24G : G&W Mark-1 | Wessex .555"
Melton 41 F Cimbasso : DE CB S118_L*_L16Am
Holton 77 Fr Horn : Laskey 825G

CFCA Symphony Orch
(2016-present)
User avatar
Matt K
Verified
Posts: 3945
Joined: Tue Mar 20, 2018 10:34 pm
Contact:

Re: Yamaha YSL 646 / 356G rotor / tubing sizes

Post by Matt K »

Awesome! Thanks for checking on that! Very good information to know I'm deciding what to do on my alto and I think that will work nicely on it. Also good information either way, I like the Yamaha rotors on my horns which I primarily use for commercial stuff. They're all little broader than the kings which actually suits me quit well and makes sense as, on paper, the differences all lean in that direction including the smaller diameter rotors.
Post Reply

Return to “Instruments”