PipeChat Digest #2815 - Saturday, April 20, 2002
 
Thanks for the great support
  by "J.P. Henning" <jp_henning@freemail.absa.co.za>
Pipes and Questions [X-Post]
  by "Paul Soulek" <soulek@frontiernet.net>
Re: Pipes and Questions [X-Post]
  by "Roy Redman" <rredman@imagin.net>
Re: Pipes and Questions [X-Post]
  by "Paul Soulek" <soulek@frontiernet.net>
 

(back) Subject: Thanks for the great support From: "J.P. Henning" <jp_henning@freemail.absa.co.za> Date: Fri, 19 Apr 2002 22:41:05 +0200   This is a multi-part message in MIME format.   ------=3D_NextPart_000_0001_01C1E7F3.59B94DB0 Content-Type: text/plain; charset=3D"iso-8859-1" Content-Transfer-Encoding: 7bit   I would like to thanks the people from the forum for being so kind. Everybody is so helpful!! Thanks people, you are great!!   ------=3D_NextPart_000_0001_01C1E7F3.59B94DB0 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=3D3D"Content-Type" CONTENT=3D3D"text/html; =3D charset=3D3Diso-8859-1"> <TITLE>Message</TITLE>   <META content=3D3D"MSHTML 5.00.3103.1000" name=3D3DGENERATOR></HEAD> <BODY> <DIV><FONT face=3D3DArial size=3D3D2><SPAN class=3D3D944184020-19042002>I = =3D would like to=3D20 thanks the people from the forum for being so kind.&nbsp; Everybody is =3D so=3D20 helpful!! Thanks people, you are =3D great!!</SPAN></FONT></DIV></BODY></HTML>   ------=3D_NextPart_000_0001_01C1E7F3.59B94DB0--    
(back) Subject: Pipes and Questions [X-Post] From: "Paul Soulek" <soulek@frontiernet.net> Date: Fri, 19 Apr 2002 18:09:19 -0500   It's been awhile since I updated the list on the organ project at church, where I added a rank of pipes to our Rodgers organ. We first used the organ on Palm Sunday, and replaced 61 of the pipes before the first Sunday in April, because the lead Kilgen pipes sounded like a theatre organ. Now the new pipes have a nice principal tone, and everyone is remarking on how great the organ sounds. A low-quality picture is available at: <http://members.truepath.com/bethelcms/news.html> I am very pleased with the setup, but being the perfectionist that I am, a few of the organ's problems kind of bug me.   Unsteady Wind The organ's blower has the following specifications (engraved on a plate) Aug. Laukhuff Co. MASCH Nr. 3 76 CBM M.C. 3 min. W.S. press 80 HP 0/20 MOTOR Nr. 22131 The reservoir has a footprint of about 3'x2', and rises about 10" when there is no weight placed on the top. I have about 10-12 pounds of weight on the top, which makes the reservoir rise about 7-8" when the wind is turned on. When there is NO weight placed on the reservoir, the wind sags LOTS, even though the reservoir dips a bit when the pipes are played. The weight gets it to maintain a more constant pressure when the pipes are on. The reservor never gets down anywhere near "no reserve" staus (being "deflated"). But there is still a sag when many notes are played, and there is only 1 rank, using 3 pitches (8-4-2). This blower is supposed to be able to support 3-4 ranks, so I doubt that is the problem. I have a piece of tubing stuck into the side of the windchest (I drilled a hole and inserted a piece). The difference between when there is no wind and when the wind is fully on is about 1.25" (using water in the tube) Am I measuring this incorrectly? I am told that my open-toe pipes were designed for about 3.5" of pressure, and the organbuilder told me that the current pressure is the right pressure. The tuning is obviously a problem, because the pipes are tuned one at a time, but when the pipes are played in combinations, the pipes lose air supply, and the tuning is different. The sagging pipes then sound out of tune, compared to the perfectly in-tune electronic sounds.   The only other thing is that some pipes seem to "sort of speak" all the time. The old pipes didn't make any noises when the wind was turned on. These pipes make quite a bit. These new pipes seem to take advantage of small amounts of leaking air more than the old ones did. Is this just an open-toe thing, or is there something I can do? I have set the toes up on cork, with small holes in the cork, so the air doesn't get a chance to go up into the pipe. This way the pipe still speaks when it should, and doesn't speak when it doesn't. But this just kind of bugs me.   Thank you for reading this far down!!! Paul  
(back) Subject: Re: Pipes and Questions [X-Post] From: "Roy Redman" <rredman@imagin.net> Date: Fri, 19 Apr 2002 19:28:43 -0500   Sounds like you really need a qualified organbuilder to help you, but here is some information and suggestions: The blower plate means that the = blower was made in March of 1976. Its capacity is 3 cubic meters per minute. Wind pressure is 80 mm or about 3 1/8" static. This will give you only about 2 1/2 usable pressure!! If your pipes are voiced on 3 1/2" this is inadequate, and the pipes will need to be revoiced or replaced. Horse power is 1/20. It should be able = to do what you are asking with proper voicing, If there are NO LEAKS. It sounds like you have leaking valves, and a little leak here and there = adds up to much more than we generally suppose. Do you have a curtain valve, or other controlling valve built into or attached to the reservoir where the blower attaches? This is essential, = and its adjustment should control the height the reservoir rises. The amount = of weight placed on the reservoir controls the wind pressure, measured on a manometer. This is a U shaped tube with water up to a lever so that you = can measure the difference in levels when wind is applied to one leg of the tube. Sorry you are having this trouble, and I really suggest you get a qualified organbuilder to help you on site. Roy Redman   Paul Soulek wrote:   > It's been awhile since I updated the list on the organ project at > church, where I added a rank of pipes to our Rodgers organ. We first > used the organ on Palm Sunday, and replaced 61 of the pipes before the > first Sunday in April, because the lead Kilgen pipes sounded like a > theatre organ. Now the new pipes have a nice principal tone, and > everyone is remarking on how great the organ sounds. A low-quality > picture is available at: > <http://members.truepath.com/bethelcms/news.html> I am very pleased with > the setup, but being the perfectionist that I am, a few of the organ's > problems kind of bug me. > > Unsteady Wind > The organ's blower has the following specifications (engraved on a > plate) Aug. Laukhuff Co. MASCH Nr. 3 76 CBM M.C. 3 min. W.S. > press 80 HP 0/20 MOTOR Nr. 22131 > The reservoir has a footprint of about 3'x2', and rises about 10" when > there is no weight placed on the top. I have about 10-12 pounds of > weight on the top, which makes the reservoir rise about 7-8" when the > wind is turned on. When there is NO weight placed on the reservoir, the > wind sags LOTS, even though the reservoir dips a bit when the pipes are > played. The weight gets it to maintain a more constant pressure when the > pipes are on. The reservor never gets down anywhere near "no reserve" > staus (being "deflated"). But there is still a sag when many notes are > played, and there is only 1 rank, using 3 pitches (8-4-2). This blower > is supposed to be able to support 3-4 ranks, so I doubt that is the > problem. I have a piece of tubing stuck into the side of the windchest > (I drilled a hole and inserted a piece). The difference between when > there is no wind and when the wind is fully on is about 1.25" (using > water in the tube) Am I measuring this incorrectly? I am told that my > open-toe pipes were designed for about 3.5" of pressure, and the > organbuilder told me that the current pressure is the right pressure. > The tuning is obviously a problem, because the pipes are tuned one at a > time, but when the pipes are played in combinations, the pipes lose air > supply, and the tuning is different. The sagging pipes then sound out of > tune, compared to the perfectly in-tune electronic sounds. > > The only other thing is that some pipes seem to "sort of speak" all the > time. The old pipes didn't make any noises when the wind was turned on. > These pipes make quite a bit. These new pipes seem to take advantage of > small amounts of leaking air more than the old ones did. Is this just an > open-toe thing, or is there something I can do? I have set the toes up > on cork, with small holes in the cork, so the air doesn't get a chance > to go up into the pipe. This way the pipe still speaks when it should, > and doesn't speak when it doesn't. But this just kind of bugs me. > > Thank you for reading this far down!!! > Paul > > "Pipe Up and Be Heard!" > PipeChat: A discussion List for pipe/digital organs & related topics > HOMEPAGE : http://www.pipechat.org > List: mailto:pipechat@pipechat.org > Administration: mailto:admin@pipechat.org > Subscribe/Unsubscribe: mailto:requests@pipechat.org    
(back) Subject: Re: Pipes and Questions [X-Post] From: "Paul Soulek" <soulek@frontiernet.net> Date: Fri, 19 Apr 2002 19:43:46 -0500   Roy Redman wrote: > > Sorry you are having this trouble, and I really suggest you get a > qualified organbuilder to help you on site. > Roy Redman   I totally agree. That is top on my list...I figured if I could try to fix this problem myself, I would, but it doesn't seem to look that way. Thank you!   Paul