What type of valve is this?

ttf_JLivorsi · Post by **ttf_JLivorsi** » Wed Oct 11, 2017 1:14 pm

My student has a Bach 42 from the 90's and doesn't know much about it, but sounds great on it. He thinks it might be an enlarged rotor, and it kind of looks like that. I've never seen this valve before. Anyone know what this is?

Pictures can be seen here
https://drive.google.com/open?id=0B5GAqlNN8PtldjFBQzJtb3ZsTE0

Thanks!

ttf_hyperbolica · Post by **ttf_hyperbolica** » Wed Oct 11, 2017 1:22 pm

K valve

ttf_JohnL · Post by **ttf_JohnL** » Wed Oct 11, 2017 3:05 pm

http://tromboneforum.org/index.php?topic=83440.0

ttf_pedrombon · Post by **ttf_pedrombon** » Wed Oct 11, 2017 4:37 pm

Bart Claessens, principal trombone of the Royal Concertgebouw Orchestra (Amsterdam), plays a Bach 42KGC and sounds awesome. However, my first large bore was a LT42KG (non convertible) from mid 90's and I was never too happy with it... Although I still have this amazing 42G bell flare mounted on a Brad Close straight open neckpipe.

ttf_JLivorsi · Post by **ttf_JLivorsi** » Thu Oct 12, 2017 9:48 am

Wow those were quick responses. My student appreciates it, and now I know a little more about valves. Thanks!

ttf_JLivorsi · Post by **ttf_JLivorsi** » Thu Oct 12, 2017 9:48 am

Wow those were quick responses. My student appreciates it, and now I know a little more about valves. Thanks!