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Clarinet Roadshow => All about Clarinets => Topic started by: kewald on July 05, 2021, 03:12:03 PM

Title: Extra key - Penzel Muller Artist
Post by: kewald on July 05, 2021, 03:12:03 PM
Removing the upper joint keys from a Penzel Muller Artist and noticed another padded key and ring below the A/D ring key.  The extra key shares a shaft with the C#/G# key.  The A/D ring also has an extra padded key on it's shaft.


What are they called, and what do they do?


Tried uploading photos, but keep getting a fatal error as reported yesterday.


Here's a link to the photo. https://1drv.ms/u/s!At_bqJIbTzvzktALGIhutXYDzfJQFw?e=3Gu2wc (https://1drv.ms/u/s!At_bqJIbTzvzktALGIhutXYDzfJQFw?e=3Gu2wc)


And another to the A/D ring.  Notice the adjusting screw on the shaft also.  https://1drv.ms/u/s!At_bqJIbTzvzktAEKQhlHyQr8ttyWQ?e=2Vb33d





Thanks,
Title: Re: Extra key - Penzel Muller Artist
Post by: DaveLeBlanc on July 05, 2021, 04:58:35 PM
Neat keywork! I feel like this is probably a forked Eb correction pad.
Title: Re: Extra key - Penzel Muller Artist
Post by: kewald on September 11, 2021, 06:44:57 PM
Here's a better photo of the upper joint keywork, taken before refurbishment.  I'm nearly through working on it.  Just need to reset some pads.
 
Title: Re: Extra key - Penzel Muller Artist
Post by: DaveLeBlanc on September 11, 2021, 10:14:50 PM
These are cool, but I don't think they're at all necessary. In the grand scheme of things, just another pad to need to seat and that can get out of adjustment.

Technically it helps keep the Eb/Bb in *slightly* better tune, but the meager gain isn't really all that noticeable. Cool to have, though.
Title: Re: Extra key - Penzel Muller Artist
Post by: el gitano on September 12, 2021, 09:18:28 AM
so it is, for better tuning in the upper register
Claus
Title: Re: Extra key - Penzel Muller Artist
Post by: DaveLeBlanc on September 12, 2021, 12:38:10 PM
so it is, for better tuning in the upper register
Claus

Correct, that's the idea anyways. Whether or not that little correction key does all that much is a matter of debate. The way I see it - if the correction key was so crucial to good intonation, everything would have it. As it is, the vast majority of professional-level clarinets keep it simple with the standard, non-fancy Boehm system.

As we say in America, "if it ain't broke, don't fix it"
Title: Re: Extra key - Penzel Muller Artist
Post by: Dibbs on September 13, 2021, 09:51:26 AM
The mechanism is for fork (1+3) Eb/Bb rather than a correction key for the long (1+1) Eb/Bb.  i.e. a fingering that is not available without it.

It may or may not improve the long Eb/Bb in the lower register which is the one that is always horribly sharp.  The upper register long Bb is normally perfectly acceptable tuning wise.
Title: Re: Extra key - Penzel Muller Artist
Post by: DaveLeBlanc on September 13, 2021, 10:39:43 AM
The mechanism is for fork (1+3) Eb/Bb rather than a correction key for the long (1+1) Eb/Bb.  i.e. a fingering that is not available without it.

It may or may not improve the long Eb/Bb in the lower register which is the one that is always horribly sharp.  The upper register long Bb is normally perfectly acceptable tuning wise.
Oops, thanks for the correction!!