Pianotech

Expand all | Collapse all

regulating a celeste

  • 1.  regulating a celeste

    Posted 06-10-2020 14:08
    Anybody have any idea how to regulate a celeste?  we are just finishing up a rebuild of one, but its not an escapement action. keydip?  blow only so much so that its impossible to block the hammer on the tone bar?

    Build quality on this thing was abyssmal.

    ------------------------------
    Jim Ialeggio
    grandpianosolutions.com
    Shirley, MA
    978 425-9026
    ------------------------------


  • 2.  RE: regulating a celeste

    Registered Piano Technician
    Posted 06-11-2020 07:29
    Contact Steve Carver.

    ------------------------------
    Tim Coates
    Sioux Falls SD
    ------------------------------



  • 3.  RE: regulating a celeste

    Posted 06-11-2020 14:16
    Start here with the Schiedmayer Celesta regulation guide: 

    https://my.ptg.org/HigherLogic/System/DownloadDocumentFile.ashx?DocumentFileKey=6fb775c7-5dcc-4e96-b005-e5747fa371c9&forceDialog=0

    Take a look at the pictures....does yours look anything like this with rods and wires, etc.


    I used it to help me regulate a Jenko celesta. My memory is fuzzy on this, as I did it 10 years ago.

    There are a lot of wires and rods inside. While not the same
    as the Schiedmayer, the instructions were close enough to get me where I needed to be and learn how
    to adjust (bend?) wires or find other adjustments in the Jenko. I did not rebuild/disassemble the Jenko,
    or I'm sure I'd be in trouble!

    Hopefully you took some measurements prior to disassembly. Even if they were off,
    there were probably some that weren't and could be a starting point.

    I had an advantage there, I think.

    I could also look inside the Schiedmayer to compare.

    The Jenko action was more "primitive", but also simpler to adjust.

    On the Jenko, I think had to bend some wires to even the hammer line and then
    make other adjustments to get the hammer to just touch the bars as described
    in the Schiedmayer manual. Jenco's seem to be quite common here in the mid-west.
    Some people called them "Junko's".


    The Jenco table top model is inverted.


    Set dip.
    Get the hammer line even ...you may need to bend wires for this...
    or for Bar touch....or both. Look for a screw that can adjust the
    hammer line.


    The line cannot be so high that the hammer won't contact the bar
    at the bottom of the key dip.

    You may need to bring the whole line
    closer for proper blow. Above all it must be even.

    Note the damper adjustment wire/stop felt. 

    Set hammer to bar touch once you get a proper hammer line
    blow distance...
    You might have to go back and forth quite a bit.

    In the Schiedmayer manual, they are going off key dip first...then adjusting
    the others...

    You can reach over the celesta to play a notes when adjusting hammer line/bar touch pressure.

    I think it is pretty apparent.

    The Jenco wooden hammers can be recovered in thin Wurzen felt from Jurgen.

    There are "levels" of bars in the uprights.....so some wires are longer
    than others....but the basic adjustments carry though.

    I cannot comment on any other brand
    other than Jenko or Schiedmayer. (My college has one).
    This worked for me, and the symphony was very happy.

    I will say that the Jenko has a "mushy" feel and is not as good as
    the Schiedmayer (but considering the cost, it should be!)...the Jenko
    was more metalic and louder. The Schiedmayer has very wide hard German
    hot press hammers. German style voicing would work on these big hammers.

    Good luck,
    Rich




    ------------------------------
    Richard Adkins
    Piano Technician
    Coe College
    Cedar Rapids, IA
    ------------------------------



  • 4.  RE: regulating a celeste

    Posted 06-11-2020 14:50
    thanks for that Richard.

    This is a Mustel...nothing at all like the Schiedemeir manual. Hammers strike down onto tone bars. Lots of regulating adjustments can be made to various parts of the strike. The plan is to level keys, set dip, level hammers at rest...which are controlled by a stop rail, align hammers to the bars, set escapement so its impossible to block the tone bar...all this for a flippin' sugar plum fairy.

    ------------------------------
    Jim Ialeggio
    grandpianosolutions.com
    Shirley, MA
    978 425-9026
    ------------------------------



  • 5.  RE: regulating a celeste

    Registered Piano Technician
    Posted 06-11-2020 16:51
    Jim, lol, I guess this is Tchaikovsky's last laugh.

    I can't tell you how many concert tunings on CP-80/s I've done just so the band can play the one song that was a hit way back when.The Eagles and U2, just to name two.

    ------------------------------
    Steven Rosenthal
    Honolulu HI
    808-521-7129
    ------------------------------



  • 6.  RE: regulating a celeste

    Posted 06-11-2020 18:39
    Yes, I think it is correct to adjust so
    that on a very soft blow the hammer just
    touches the bar. 

    Or set until it touches the bar...then set
    let off so it barely lets off pm a soft blow...or is that the same?

    At least it is not a Junko!

    --
     Richard Adkins 
     Keyboard Tuning and Maintenance
     Curator of Instruments 
             
    Notice:
    This email and any files transmitted with it are confidential and intended solely for the use of the individual to whom it is addressed. This message contains confidential information and is intended only for the individual named. If you are not named you should not disseminate, distribute or copy this email. Please notify the sender immediately and delete this email from your system.

    Warning: Although the sender has taken reasonable precautions to ensure no viruses are present in this email, the sender cannot accept responsibility for any loss or damage arising from the use of this email or attachments.






  • 7.  RE: regulating a celeste

    Registered Piano Technician
    Posted 06-11-2020 18:04
    Jim,

    I have worked on a Mustel before. Yeah, the build quality of something dug out of the bottom of a Cracker Jack's box.

    The one I worked on did not have an escapement per se. It is not so different from the downward striking, non-escapement piano action of Gottlieb Schroeder, which predates the celeste by a fair piece.

    To the best of my recollection, if you can set hammer blow distance such that it doesn't block on a hard blow, but still speaks on a soft blow, you are in The Sweet Spot.

    Buena suerte!

    Alan 


    ------------------------------
    Alan Eder, RPT
    Herb Alpert School of Music
    California Institute of the Arts
    Valencia, CA
    661.904.6483
    ------------------------------



  • 8.  RE: regulating a celeste

    Posted 06-11-2020 18:36
    <Yeah, the build quality of something dug out of the bottom of a Cracker Jack's box.

    lol...we are having a good laugh on this one...

    ------------------------------
    Jim Ialeggio
    grandpianosolutions.com
    Shirley, MA
    978 425-9026
    ------------------------------



  • 9.  RE: regulating a celeste

    Posted 06-11-2020 18:44
    Coe rarely uses the Schiedmayer, which cost
    a lot even "restored" (the case is quite worn)...I think new they are $60K or something near that if not more....

    Orchestra Iowa uses their "Jenko" every year
    for Nutcracker...and occasionally it is used
    for a contemporary piece....

    Mostly they just sit there gathering dust...

    But, when either group needs one, they've
    got one...so "no excuse"!!! ha...

    I think your plan will work...

    Rich

    --
     Richard Adkins 
     Keyboard Tuning and Maintenance
     Curator of Instruments 
             
    Notice:
    This email and any files transmitted with it are confidential and intended solely for the use of the individual to whom it is addressed. This message contains confidential information and is intended only for the individual named. If you are not named you should not disseminate, distribute or copy this email. Please notify the sender immediately and delete this email from your system.

    Warning: Although the sender has taken reasonable precautions to ensure no viruses are present in this email, the sender cannot accept responsibility for any loss or damage arising from the use of this email or attachments.






  • 10.  RE: regulating a celeste

    Posted 06-11-2020 18:49
    ah...it looks like hedgwigs theme in harry potter is a celeste

    ------------------------------
    Jim Ialeggio
    grandpianosolutions.com
    Shirley, MA
    978 425-9026
    ------------------------------



  • 11.  RE: regulating a celeste

    Registered Piano Technician
    Posted 06-11-2020 19:38
    ...and let's not forget the theme to Mister Rogers' Neighborhood!

    (But seriously folks, we have a composer on our faculty, Michael Fink, who writes extensively for celeste.)

    Alan

    ------------------------------
    Alan Eder, RPT
    Herb Alpert School of Music
    California Institute of the Arts
    Valencia, CA
    661.904.6483
    ------------------------------