DIYAPASON-L Digest #836 - Friday, June 27, 2003
 
Re: [Residence Organs]  Blowers and Mixed Actions
  by "Tony Newnham" <organist@tsnp.fsnet.co.uk>
TEMPLE BETH ISRAEL, Altoona, PA ???
  by "rnewman" <rnewman@shop.rutgers.edu>
 

(back) Subject: Re: [Residence Organs] Blowers and Mixed Actions From: "Tony Newnham" <organist@tsnp.fsnet.co.uk> Date: Fri, 27 Jun 2003 09:34:08 +0100   This is a multi-part message in MIME format.   ------=3D_NextPart_000_0094_01C33C8F.429421E0 Content-Type: text/plain; charset=3D"iso-8859-1" Content-Transfer-Encoding: quoted-printable   Hi   Thanks for the reply. Were you using a standard blower in the example =3D you quoted? I'm looking at using a blower that will produce constant =3D pressure regardless of load (within limits of course). I'm assured that = =3D such devices exist - my son, who is an applications engineer in the =3D material drying industry has come across them, and I presume that a =3D similar device is used in the "Box Organs" of the early music scene. =3D I'll let you know what I discover (when I've got time to do the =3D research!!)   Every Blessing   Tony ----- Original Message -----=3D20 From: atos=3D20 To: Residence Organ List=3D20 Sent: Thursday, June 26, 2003 11:27 AM Subject: RE: [Residence Organs] Blowers and Mixed Actions     Regarding your question about operating without a reservoir, I am not = =3D absolutely sure how it would apply to a low-pressure instrument, but I =3D have experience trying this with a theatre organ. Aside from the obvious = =3D issue of the trems not working correctly on the theatre organ, there was = =3D no regulation. On the organ where I was forced to try this out of =3D necessity because of a recital someone scheduled in the middle of a =3D regulator re-leathering, the pipes were voiced on 10". The blower =3D delivered a constant 12", which admittedly is a little marginal. =3D Although the instrument was in tune at static pressure, the ear could =3D definitely detect changes in pitch and harmonic quality when playing =3D loud passages, or passages where notes were held for some length. I am =3D not a classical organ expert, but I would think that at lower pressures, = =3D this would become even more pronounced. I am sure you considered all =3D your options, but even a 1'x1' regulator would be better than nothing at = =3D all.=3D20 -----Original Message----- From: DIYAPASON-L@pipechat.org [mailto:DIYAPASON-L@pipechat.org]On =3D Behalf Of Tony Newnham Sent: Wednesday, June 25, 2003 4:13 AM To: Residence Organ List Subject: [Residence Organs] Blowers and Mixed Actions     Hi   Progress at last - although only small. The new building frame is =3D together, and the key frame stripped of layers of old paint and =3D re-varnished. Keys are back in. Next job is to get the chest =3D positioned accurately so I can get the tracker action back together.   Two questions:-   1) Has anyone had experience of small, constant pressure blowers =3D with no reservoir? I'm considering this route, as the organ is now in =3D an upstairs room, and space is at a premium. The organ is a 3 stop =3D "Chancel organ", said to be by Bishop, c.1870. Rebuilt 1973. I didn't = =3D have opportunity to measure wind pressure before dismantling, but would = =3D guess no more that 3in w.g.=3D20   2) I'm considering fitting pull-down magnets, to interface with a =3D MIDI system in addition to the tracker action, which I want to retain at = =3D all costs. Has anyone tried this? Any comments/suggestions welcome.   Thanks in advance.   Every Blessing   Tony   ------=3D_NextPart_000_0094_01C33C8F.429421E0 Content-Type: text/html; charset=3D"iso-8859-1" Content-Transfer-Encoding: quoted-printable   <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=3D3DContent-Type content=3D3D"text/html; =3D charset=3D3Diso-8859-1"> <META content=3D3D"MSHTML 6.00.2600.0" name=3D3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=3D3D#ffffff> <DIV><FONT face=3D3DArial size=3D3D2>Hi</FONT></DIV> <DIV><FONT face=3D3DArial size=3D3D2></FONT>&nbsp;</DIV> <DIV><FONT face=3D3DArial size=3D3D2>Thanks for the reply.&nbsp; Were you = =3D using a=3D20 standard blower in the example you quoted?&nbsp; I'm looking at using a = =3D blower=3D20 that will produce constant pressure regardless of load (within limits of = =3D   course).&nbsp; I'm assured that such devices exist - my son, who is = an=3D20 applications engineer in the material drying industry has come across =3D them, and=3D20 I presume that a similar device is used in the "Box Organs" of the early = =3D music=3D20 scene.&nbsp; I'll let you know what I discover (when I've got time to do = =3D the=3D20 research!!)</FONT></DIV> <DIV><FONT face=3D3DArial size=3D3D2></FONT>&nbsp;</DIV> <DIV><FONT face=3D3DArial size=3D3D2>Every Blessing</FONT></DIV> <DIV><FONT face=3D3DArial size=3D3D2></FONT>&nbsp;</DIV> <DIV><FONT face=3D3DArial size=3D3D2>Tony</FONT></DIV> <BLOCKQUOTE dir=3D3Dltr=3D20 style=3D3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =3D BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV style=3D3D"FONT: 10pt arial">----- Original Message ----- </DIV> <DIV=3D20 style=3D3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =3D black"><B>From:</B>=3D20 <A title=3D3Datos@stirlingprop.com =3D href=3D3D"mailto:atos@stirlingprop.com">atos</A>=3D20 </DIV> <DIV style=3D3D"FONT: 10pt arial"><B>To:</B> <A =3D title=3D3DDIYAPASON-L@pipechat.org=3D20 href=3D3D"mailto:DIYAPASON-L@pipechat.org">Residence Organ List</A> =3D </DIV> <DIV style=3D3D"FONT: 10pt arial"><B>Sent:</B> Thursday, June 26, 2003 = =3D 11:27=3D20 AM</DIV> <DIV style=3D3D"FONT: 10pt arial"><B>Subject:</B> RE: [Residence Organs] = =3D Blowers=3D20 and Mixed Actions</DIV> <DIV><BR></DIV> <DIV><SPAN class=3D3D125041510-26062003><FONT face=3D3DArial =3D color=3D3D#0000ff=3D20 size=3D3D2>Regarding your question about operating without a reservoir, = =3D I am not=3D20 absolutely sure how it would apply to a low-pressure instrument, but I = =3D have=3D20 experience trying this with a theatre organ. Aside from the obvious =3D issue of=3D20 the trems not working correctly on the theatre organ, there was no =3D regulation.=3D20 On the organ where I was forced to try this out of necessity because =3D of a=3D20 recital someone scheduled in the middle of a regulator re-leathering, = =3D the=3D20 pipes were voiced on 10". The blower delivered a constant 12", = which=3D20 admittedly is a little marginal. Although the instrument was in tune =3D at static=3D20 pressure, the ear could definitely detect changes in pitch and =3D harmonic=3D20 quality when playing loud passages, or passages where notes were held = =3D for some=3D20 length. I am not a classical organ expert, but I would think that at =3D lower=3D20 pressures, this would become even more pronounced. I am sure you =3D considered=3D20 all your options, but even a 1'x1' regulator would be better than =3D nothing at=3D20 all. </FONT></SPAN></DIV> <BLOCKQUOTE dir=3D3Dltr style=3D3D"MARGIN-RIGHT: 0px"> <DIV class=3D3DOutlookMessageHeader dir=3D3Dltr align=3D3Dleft><FONT = =3D face=3D3DTahoma=3D20 size=3D3D2>-----Original Message-----<BR><B>From:</B> =3D DIYAPASON-L@pipechat.org=3D20 [mailto:DIYAPASON-L@pipechat.org]<B>On Behalf Of </B>Tony=3D20 Newnham<BR><B>Sent:</B> Wednesday, June 25, 2003 4:13 =3D AM<BR><B>To:</B>=3D20 Residence Organ List<BR><B>Subject:</B> [Residence Organs] Blowers =3D and Mixed=3D20 Actions<BR><BR></FONT></DIV> <DIV><FONT face=3D3DArial size=3D3D2>Hi</FONT></DIV> <DIV><FONT face=3D3DArial size=3D3D2></FONT>&nbsp;</DIV> <DIV><FONT face=3D3DArial size=3D3D2>Progress at last - although only = =3D small.&nbsp;=3D20 The new building frame is together, and the key frame stripped of =3D layers of=3D20 old paint and re-varnished.&nbsp; Keys are back in.&nbsp; Next job =3D is to get=3D20 the chest positioned accurately so I can get the tracker action back = =3D   together.</FONT></DIV> <DIV><FONT face=3D3DArial size=3D3D2></FONT>&nbsp;</DIV> <DIV><FONT face=3D3DArial size=3D3D2>Two questions:-</FONT></DIV> <DIV><FONT face=3D3DArial size=3D3D2></FONT>&nbsp;</DIV> <DIV><FONT face=3D3DArial size=3D3D2>1) Has anyone had experience of = =3D small, constant=3D20 pressure blowers with no reservoir?&nbsp; I'm considering this =3D route, as the=3D20 organ is now in an upstairs room, and space is at a premium.&nbsp; =3D The organ=3D20 is a 3 stop "Chancel organ", said to be by Bishop, c.1870.&nbsp; =3D Rebuilt=3D20 1973.&nbsp; I didn't have opportunity to measure wind pressure =3D before=3D20 dismantling, but would guess no more that 3in w.g. </FONT></DIV> <DIV><FONT face=3D3DArial size=3D3D2></FONT>&nbsp;</DIV> <DIV><FONT face=3D3DArial size=3D3D2>2) I'm considering fitting =3D pull-down magnets,=3D20 to interface with a MIDI system in addition to the tracker action, =3D which I=3D20 want to retain at all costs.&nbsp; Has anyone tried this?&nbsp; = Any=3D20 comments/suggestions welcome.</FONT></DIV> <DIV><FONT face=3D3DArial size=3D3D2></FONT>&nbsp;</DIV> <DIV><FONT face=3D3DArial size=3D3D2>Thanks in advance.</FONT></DIV> <DIV><FONT face=3D3DArial size=3D3D2></FONT>&nbsp;</DIV> <DIV><FONT face=3D3DArial size=3D3D2>Every Blessing</FONT></DIV> <DIV><FONT face=3D3DArial size=3D3D2></FONT>&nbsp;</DIV> <DIV><FONT face=3D3DArial=3D20 size=3D3D2>Tony</FONT></DIV></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>   ------=3D_NextPart_000_0094_01C33C8F.429421E0--    
(back) Subject: TEMPLE BETH ISRAEL, Altoona, PA ??? From: "rnewman" <rnewman@shop.rutgers.edu> Date: Fri, 27 Jun 2003 14:03:55 -0400   Anyone on the list have any idea what kind of organ is or was in the Temple Beth Israel in Altoona PA? I recently got a rank and found a marking on them, but no idea of the builder. Thanks in advance.   -Randy