Plywood soundboard

[John M. Formsma]

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I tune quite a few Wurlitzers. There used to be a Wurlitzer factory 30 miles
from me, so Mississippi abounds with them.

My experience in our climate is that they rarely stay in tune very long
unless there is some climate control.

One particular Wurly spinet I'm thinking of will be up or down 30+ cents
depending on the season. Needless to say, you don't have much tuning
stability with these puppies.

I don't recall seeing one without any kind of finish on the SB.

John Formsma
  -----Original Message-----
  From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org]On
Behalf Of George Bartlett
  Sent: Saturday, March 27, 2004 11:31 PM
  To: pianotech@ptg.org
  Subject: Plywood soundboard


        I am looking for some info on a Rudolph Wurlitzer.
  I tuned one of these babies three months ago, and discovered that that's
as long asthe tuning lasted.
  It went terrbily out and dropped in pitch.
  Observed a plain plywood {laminated} soundboard with no lacquer,  varnish
of any kind. The piano went so far out in the three month period that I
suppected that the soundboard had actually twisted. I could not find any
signs of any structuual damage and the tuning pins were very tight.
  Any advice on these instruments....customer needless to say is very
concerned ...
  George

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