DC Systems on Concert pianos

David's Email ilvey@sbcglobal.net
Tue, 14 Oct 2003 18:45:41 -0700


Doesn't that void the warranty?...;-]

David I.

----- Original Message ----- 
From: <fssturm@unm.edu>
To: "College and University Technicians" <caut@ptg.org>
Sent: Tuesday, October 14, 2003 5:49 PM
Subject: Re: DC Systems on Concert pianos


> Jeff,
>    For a similar reason, I have bent the rods with 4 90 degree bends, to
lower the
> middle.  (I hope that's easy enough to imagine. If not, say so and I'll
try to be
> more descriptive). I think that's easier than what you are describing.
Just put a
> rod in a vise and push with your hand. It's pretty soft metal. Of course,
> sometimes there isn't even enough clearance for the rods themselves
between
> beams and ribs.
> Regards,
> Fred Sturm
> University of New Mexico
>
> Quoting Jeff Tanner <jtanner@mozart.music.sc.edu>:
>
> > Mark,
> > You shouldn't get buzzes with the new rod hangers, tank hangers, or
> > vapor shields.  I do have a hard time doing between the beam
> > installations on Steinway because there is very little clearance
> > between the beams and the soundboard ribs.  So, I've been cutting the
> >
> > rods short and rather than hanging the rods above the beams, hanging
> >
> > them as near the top as I can get them.  Takes longer to do it this
> > way, but it's about the only way I know of to keep the vapor shield
> > off
> > the soundboard.
> > Jeff
> >
> > On Tuesday, October 14, 2003, at 11:39 AM, Mark Cramer wrote:
> >
> > > We've experienced good success with a double-tank system under a D
> > in
> > > the
> > > city's concert hall.
> > >
> > > I should say good success with the staff, they've been great!
> > >
> > > Although I haven't fit one to this piano, here's an excellent place
> >
> > > for a
> > > bottom cover.
> > >
> > > 1.) to isolate the piano from air-flow changes on-stage /
> > off-stage
> > >
> > > 2.) to make the system invisible to patrons in the first row.
> > (though
> > > it's
> > > all pretty black under there anyhow)
> > >
> > > Both the main stage and the apron have convenient AC receptacles
> > hidden
> > > throughout.
> > >
> > > Re: buzzes...I've been meaning to raise this question
> > >
> > > Has anyone experienced buzzes/rattles from a DC system, other than
> >
> > > from the
> > > tank-support rods?
> > >
> > > How about from the vapor shields?
> > >
> > > I've had two Baldwins where the ribs are so close to the beams that
> >
> > > there
> > > was some buzz (I bent the rods down). I have wondered however, if
> > it
> > > would
> > > be good prevention to put some cloth between the rods and tops of
> > > beams as
> > > prevention?
> > >
> > > thanks,
> > > Mark Cramer
> > > BRandon University
> > >
> > >
> > >
> > >
> > > -----Original Message-----
> > > From: caut-bounces@ptg.org [mailto:caut-bounces@ptg.org]On Behalf
> > Of
> > > Jeff Tanner
> > > Sent: Friday, October 10, 2003 10:48 AM
> > > To: College and University Technicians
> > > Subject: Re: DC Systems on Concert pianos; was: Steinway 45
> > upright
> > >
> > >
> > > I've thought about that idea, but the truck would get in the way
> > of
> > > rolling the cart under the piano.
> > > Jeff
> > >
> > > On Friday, October 10, 2003, at 11:42 AM, Otto Keyes wrote:
> > >
> > >> At Banff I rigged up some damp chaser systems on small carts
> > which
> > >> could be
> > >> rolled under the concert grands.  Perhaps not as effective as an
> > >> "in-piano"
> > >> system, but with a long skirt on the cover (could be attached
> > with
> > >> velcro
> > >> strips) it provided some control.  These were easy to cobble
> > together
> > >> (1x4
> > >> frame on casters), and I think it would be worth a shot.  When not
> > on
> > >> stage,
> > >> the pianos went in their "box" backstage & the carts went in with
> >
> > >> them.
> > >> Don't know if those are still in use since the new music building
> > went
> > >> in a
> > >> few years back, but they were reasonably effective at the time.
> > >>
> > >> Otto
> > >>
> > >> ----- Original Message -----
> > >> From: "Wolfley, Eric (wolfleel)" <WOLFLEEL@UCMAIL.UC.EDU>
> > >> To: "'College and University Technicians'" <caut@ptg.org>
> > >> Sent: Friday, October 10, 2003 8:07 AM
> > >> Subject: RE: Steinway 45 upright
> > >>
> > >>
> > >>> This piano gets trucked around a fair amount and lives on a
> > large
> > >>> union
> > >>> stage where people shove things around and ask questions later.
> > Also,
> > >>> its
> > >> in
> > >>> a 3,000 seat hall (Cincinnati Music Hall) and I wouldn't want to
> > >>> cover up
> > >>> anything. They record every concert for broadcast and I'd be
> > paranoid
> > >>> of
> > >>> potential rattles. Do a lot of people out there use DC units
> > onstage?
> > >>>
> > >>> ~~~~~~~~~~~~~~~~~~~
> > >>> Eric Wolfley
> > >>> Head Piano Technician
> > >>> Cincinnati College-Conservatory of Music
> > >>> University of Cincinnati
> > >>> ~~~~~~~~~~~~~~~~~~~~
> > >>>
> > >>>
> > >>> -----Original Message-----
> > >>> From: Don [mailto:pianotuna@accesscomm.ca]
> > >>> Sent: Friday, October 10, 2003 4:36 AM
> > >>> To: College and University Technicians
> > >>> Subject: RE: Steinway 45 upright
> > >>>
> > >>>
> > >>> Hi Eric,
> > >>>
> > >>> Why no hope of a DC system with bottom cover?
> > >>>
> > >>> At 10:12 AM 10/10/2003 -0400, you wrote:
> > >>>>  to dry out it reverts a devilish false beat capo noise
> > monster.
> > >>> Unfortunately, most of the concerts are during the dry months
> > and
> > >>> there is
> > >>> no hope of any climate control.
> > >>>> Eric Wolfley
> > >>>
> > >>> Regards,
> > >>> Don Rose, B.Mus., A.M.U.S., A.MUS., R.P.T.
> > >>>
> > >>> mailto:pianotuna@accesscomm.ca
> > >>> http://us.geocities.com/drpt1948/
> > >>>
> > >>> 3004 Grant Rd.
> > >>> REGINA, SK
> > >>> S4S 5G7
> > >>> 306-352-3620 or 1-888-29t-uner
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