Sandwiched Soundboard was Rebuilding Candidate

[David Ilvedson]

Its power source is the first soundboard with the bridge attached...so the
second board would rob energy from the first thus making it a reducer not a
transducer...;-]

David I.

*********** REPLY SEPARATOR  ***********

On 3/21/01 at 9:09 AM Carl Meyer wrote:

>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 >>
>>
>>
>>