Sandwiched Soundboard was Rebuilding Candidate

[Carl Meyer]

Yes, but!  Where is the double energy source coming from?  You must be
assuming that the second sb is a true amplifier (with its own external power
source) and not a transducer.

Carl Meyer

----- Original Message -----
From: "David Ilvedson" <ilvey@jps.net>
To: "pianotech" <pianotech@ptg.org>
Sent: Tuesday, March 20, 2001 9:18 PM
Subject: Re: Sandwiched Soundboard was Rebuilding Candidate


> Well its obvious to me that twice the soundboard twice the sound...;-]
>
> David I.
>
> *********** REPLY SEPARATOR  ***********
>
> On 3/20/01 at 7:41 PM Bdshull@AOL.COM wrote:
>
> >Hi, Dale and Richard,
> >
> >Problem is, this piano is on its side "sandwiched" between other
similarly
>
> >gutted space robbers in my shop.  I can't get at it right now.  But when
I
>
> >had it out years ago I think I peered through a few small (1" or less?)
> >"airholes" and concluded that the only connection between the two boards
> >involved dowel spacers, maybe 1" or 1 1/2".   I don't know if the upper
> >board
> >is ribbed in any way, but I'm guessing it's not - the lower board is -and
> >that might be what they were after (Del is probably chuckling right about
> >now
> >if he's reading this) - a greater range of frequency responsiveness.  I
> >really have no idea.  Someone once suggested that the crown might be
> >better
> >retained.
> >
> >But that is why I have held on to it lo these many years - it is pretty
> >interesting (besides, I haven't built any trebechut (sp?) yet).
> >
> >Bill Shull,  RPT
> >University of Redlands, La Sierra University
> >
> > In a message dated 3/20/01 12:47:16 PM Pacific Standard Time,
> >Richard.Brekne@grieg.uib.no writes:
> >
> ><< So Bill, you gonna describe this a bit more for us ? Or did you and I
> >just
> > missed it.
> >
> > Erwinpiano wrote:
> >
> > >   Bill
> > >
> > >     That sounds intriguing. How big,old and damaged is it? My Gosh
what
> > > brain storm did they have going on? People probably didn't sleep much
> at
> > > night. What's the thickness of the boards and how is the second one
> > > activated?
> > >
> > > Dale Erwin
> > >
> > > ----- Original Message -----
> > > From: <Bdshull@AOL.COM>
> > > To: <pianotech@ptg.org>
> > > Sent: Monday, March 19, 2001 12:39 AM
> > > Subject: Re: Rebuilding Candidate
> > >
> > > > FWIW,
> > > >
> > > > I have had a similar Schiller (but with extensively damaged cabinet)
> >in
> >my
> > > > shop taking space for many years.  Should have dumped it, but one
> >unique
> > > > characteristic has kept me from dumping it, so far:  it has a double
> > > > soundboard.
> > > >
> > > > That's right.  There are two boards, with (I assume) dowel spacers
in
> > > > between.  I have always wondered what it would sound like - but
never
> > > enough
> > > > to rebuild it.
> > > >
> > > > Bill Shull, RPT
> >
> > --
> > Richard Brekne
> > RPT, N.P.T.F.
> > Bergen, Norway
> > mailto:Richard.Brekne@grieg.uib.no >>
>
>
>