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 Re: Need help identifying an old Leblanc
Author: donald 
Date:   2018-09-08 12:47

Just a small note- it doesn't have an "SK mechanism". That is activated by the thumb ring and isn't an "either register OR throat B flat" mechanism as on a bass clarinet. The SK mechanism opens one hole when being used for the register key, and two holes when being used for B flat. This one has a mechanism activated by the throat A key, and is "either/or" in that it opens a register hole OR a B flat hole depending on if the A key is open.
The SK mechanism is more reliable- but tends to result in lower pitches in the altissimo (this depends on other elements of the instrument design). The "either/or" mechanism tends not to have this drawback, but is mechanically less reliable (complex mechanism that relies on counterbalanced springs etc).
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 Topics Author  Date
 Need help identifying an old Leblanc  new
m1964 2018-09-07 12:54 
 Re: Need help identifying an old Leblanc  new
donald 2018-09-07 13:39 
 Re: Need help identifying an old Leblanc  new
Chris P 2018-09-07 13:43 
 Re: Need help identifying an old Leblanc  new
m1964 2018-09-08 07:29 
 Re: Need help identifying an old Leblanc  new
jdbassplayer 2018-09-07 17:12 
 Re: Need help identifying an old Leblanc  new
m1964 2018-09-08 07:39 
 Re: Need help identifying an old Leblanc  new
donald 2018-09-08 12:47 
 Re: Need help identifying an old Leblanc  new
m1964 2018-09-10 02:25 
 Re: Need help identifying an old Leblanc  new
m1964 2018-09-16 08:53 
 Re: Need help identifying an old Leblanc  new
jdbassplayer 2018-09-08 15:34 
 Re: Need help identifying an old Leblanc  new
ebonite 2018-09-08 15:55 
 Re: Need help identifying an old Leblanc  new
Johan H Nilsson 2018-09-08 16:11 
 Re: Need help identifying an old Leblanc  new
donald 2018-09-09 02:17 
 Re: Need help identifying an old Leblanc  new
m1964 2018-09-09 09:07 
 Re: Need help identifying an old Leblanc  new
donald 2018-09-10 11:13 
 Re: Need help identifying an old Leblanc  new
shmuelyosef 2018-09-15 06:25 
 Re: Need help identifying an old Leblanc  new
Chris P 2018-09-16 01:24 
 Re: Need help identifying an old Leblanc  new
Chris P 2018-09-16 20:52 
 Re: Need help identifying an old Leblanc  new
shmuelyosef 2018-09-17 09:15 
 Re: Need help identifying an old Leblanc  new
Chris P 2018-09-17 20:06 
 Re: Need help identifying an old Leblanc  new
bill28099 2018-09-17 23:58 
 Re: Need help identifying an old Leblanc  new
Chris P 2018-09-18 02:05 


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