Gram Gauge

[Farrell]

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I looked at that web site and saw the 65GG guage. It says it is accurate =
to within 1/3 a graduation. It appears that graduations MAY be each 5 =
grams. That means at best it is accurate to within 2 grams. But I think =
you would be hard pressed to use it and compare your results with anyone =
using a regular gram weight set. Especially when you consider the art of =
 setting the appropriate amount of weight on the key end and giving a =
little bump to overcome friction and then watching to see a uniform =
hammer rise. How would you watch a hammer rise with this gizmo? It =
appears that it is only for static resistance, it cannot measure the =
resistance of a key in motion. Spend the bucks and get a good gram =
weight set.

Pianotek has a real nice one for $125 on Page B-5. The one on B-25 is =
for static resistance. No good for key down and up weight. I have Bill =
Spurlock's which are also real nice. Pianotek's may be a bit nicer in =
that they lock together when you need to have two weights on the key, =
but I like my set just fine, thank you. I may have paid a bit more for =
mine than Pianotek's.

The other way to do it is to get the real cheap set from Schaff and use =
an accurate scale to modify the weights so that they are actually =
accurate. Much easier to just call Pianotek and order. Be aware though, =
the instruments you have cited in your post are for static measurements =
of resistance, not for anything that includes a dynamic form - like =
weighting off a set of piano keys!

Terry Farrell
Piano Tuning & Service
Tampa, Florida
mfarrel2@tampabay.rr.com
  ----- Original Message -----=20
  From: Glenn Grafton=20
  To: pianotech@ptg.org=20
  Sent: Saturday, October 14, 2000 3:52 PM
  Subject: Gram Gauge


  I'm looking for a gauge that would show the number of grams it takes =
to depress a key. There are sets of weights that can be combined that =
I've seen in some of the piano supply catalogs but I'd prefer a gauge.=20

  The gauges I've seen in the piano supply catalogs are a little on the =
pricey side-PianoTek has one on page B-25, the 31-006-0 Correx 100 gram =
gauge that runs $169.95.

  Did some checking on the Internet and came up with the Chatillon 65GG =
Gram Gauge for $95. It's at:=20
  http://www.itinscales.com/chhandsp.htm

  Anyone know of any other gauges that would measure normal key weights =
for less than $170?

  Thanks.

  Glenn Grafton
  Grafton Piano & Organ Co.
  Souderton PA
  http://www.dprint.com/grafton/
  gleng@fast.net
  800-272-5980

  The box said "Requires Windows 95, or better." So I bought a =
Macintosh.


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