Third Bridge

[Delwin D Fandrich]

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Looking at that pinning layout I'd guess they first tried three unisons of
tri-chord wrapped strings. When that didn't work the switched to bi-chords.

Not a lot of expert design work went into these things. Mostly copying and
trial and error.

Del
  -----Original Message-----
  From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org]On
Behalf Of Terry
  Sent: December 23, 2004 6:10 AM
  To: pianotech@ptg.org
  Subject: Third Bridge


  Got a good photo on my first day lugging my camera around with me! This is
for those that might think a transition bridge is only to be found on
high-end 100+ year-old pianos and high-performance recently-redesigned
pianos. The photo below  is of a 1962 Cable spinet (please ignore the
cockroach crap).

  And of course, some clown is going to ask - "yeah, but how did it sound?"
Silly question. I would describe the transition from plain wire to bass
section as a two-step, less-bad, than some spinets. Somehow I don't think
the less-than-perfect transition is the fault of the three-bridge design.
Likely other factors involved. (Like maybe a soundboard made of
rec-room-wall paneling?) You can bet your bottom dollar that a hockey stick
design was tried first - that must have worked really well for them to
justify spending $17 (or whatever) extra dollars on EVERY piano they built
to incorporate this three bridge design! (Check out the nice, even, pinning
on that little bridge!)

  Terry Farrell


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