Tuning Levers

[James Grebe]

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James Grebe
Piano Tuner-Technician
pianoman@accessus.net
Established 1962
Artisan of Wooden Artifacts such as:
Handsome Hardwood Caster Cups
Handsome Hardwood Piano  Benches
Handsome Hardwood Tuning Levers
314 845-8282
1526 Raspberry Lane
Arnold, MO 63010

  ----- Original Message -----=20
  From: Scott & Jason Jackson=20
  To: PianoTech mailing list ; DTuner=20
  Sent: Wednesday, January 08, 2003 1:01 AM
  Subject: Re: Juan Tuning Lever


  Daryl,
  Have you read this report by Michael Musial about a Jahn hammer?

  In regards to this an all other extension hammers. =20
      A few years ago I attended the class of Charles Faulk and his =
designing of the titanium tuning lever..  I purposely did not save his =
class notes so I could go through the same adventure of trial and error. =
 However he was my inspiration to go down this particular road.  It =
inspired me to work on my own along the same path.=20
       All extension levers have the same charactieristic.  The =
compression fitting is at the business end of the steel or whatever =
material is used.  No matter how long the shaft extends into the handle =
it is effectively rendered useless as the flex begins right at the =
compression fitting.   To me the logical solution for this is to make =
the lever not adjustable.  I have designed mine to fit as far into the =
handle as possible.  The more shaft and the more solidly it contacts the =
inside of the handle the more positive the hammer is going to feel.  I =
have chosen to use Schaff's lever shafts which accepts a variety of =
tuning heads.  In the hammers I have made, I have used not extremely =
heavy exotic woods on the bulk of the handle  but attached a larger =
piece of denser  wood to the end so a ball like end is able to be =
turned.  The handle is also not just uniformly round but shaped more to =
fit the contour of your partailly closed hand gripping it.  This way it =
gives you a choice of grips. 1.  Along the handle and close to where the =
shaft comes out of the handle or 2.  at the ball end and because of the =
extra weight of the denser hardwood it sort of acts like an impact type =
feel giving you a little more ooomph on moving tight pins. =20
      On the matter of the threads of the shaft I believe that Schaff =
plates the shaft after the threads are cut which can leave them sort of =
rough.  Finally the tuning head will cut through the plating and then =
the tips can be put on and took off easily.  I was always one to prefer =
a light hammer as I felt it allowed me to fel more what the pin was =
doing or not doing.. =20
      Whatver kind of hammer you get, it also needs to be gotten =
comfortable with through use every day on all kinds of pianos.
  Just my opinion.

  http://www.neesium.com/piano/jahn/

  Scott Jackson
  Jurjens Pianos
  Wollongong Australia

    ----- Original Message -----=20
    From: DTuner=20
    To: Pianotech=20
    Sent: Monday, 6 January 2003 4:44
    Subject: Juan Tuning Lever


    Does anyone know where I can get info on the Juan Tuning Lever
    I will be doing a technical at a PTG meeting this month about =
different types of tuning levers

    Daryl Durand, RPT
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