DIYAPASON-L Digest #138 - Tuesday, August 15, 2000
 
Re: [Residence Organs]  Electro-Pneumatic Chests
  by "Bob Loesch" <rrloesch@jps.net>
Re: Electro-Pneumatic Chests
  by <TheGluePot@aol.com>
Re: [Residence Organs]  Electro-Pneumatic Chests
  by "william baron" <bourdon_8@yahoo.com>
Re: Primaries for Electro-Pneumatic Chests
  by <TheGluePot@aol.com>
Re: [Residence Organs]  Re: Primaries for Electro-Pneumatic Chests
  by "VEAGUE" <dutchorgan@svs.net>
 

(back) Subject: Re: [Residence Organs] Electro-Pneumatic Chests From: "Bob Loesch" <rrloesch@jps.net> Date: Mon, 14 Aug 2000 21:38:28 -0700   Hi, Bill, welcome to the nut house! I'm sure that there are many here more qualified than I to help, but would you be so kind as to tell us who built your chests? Knowing who built them would give us a better idea of how to proceed.   At 17:29 08/14/2000 -0700, william baron wrote: >Hello Everyone! > >Perhaps I should introduce myself. >I am a new member of the list. I'm just finishing >construction of my new house. I'm starting the >installation of my pipe organ in a special room in the >basement. I have a lot of parts but no working organ. > My chests are electro-pneumatic. My first task is to >rebuild these chests. There are no bottom boards, so >I really have nothing for an example of how to build >them. The pouches are intact. There is a channel >that runs to the bottom for each pouch. > >Can someone help me? I have all the magnets I need >and I am quite capable of woodworking. I just need to >know how to build this board and magnet thing. I am >very "green" with this whole organ stuff. So please >be patient. > >Thank you, >Bill > >__________________________________________________ >Do You Yahoo!? >Yahoo! Mail =96 Free email you can access from anywhere! >http://mail.yahoo.com/ > >DIYAPASON-L: a Discussion list for owners and builders of their own=20 >Residence Pipe Organs. >HOMEPAGE : http://www.diyapason.pipechat.org >List: mailto:DIYAPASON-L@pipechat.org >Administration: mailto:owner-DIYAPASON@pipechat.org > > >   Regards, Bob, in beautiful Lake County, California, USA=20 NAWCC 140818 http://www.jps.net/rrloesch alternate mailto:cuckoobob@eudoramail.com    
(back) Subject: Re: Electro-Pneumatic Chests From: <TheGluePot@aol.com> Date: Tue, 15 Aug 2000 01:24:11 EDT   Dear Bill:   Welcome! What kind of chests and magnets do you have? That is the = starting point for the discussion since you may need large port magnets if your = chests are Robert Morton. Small port magnets could be used if you use primary valves.   Al Sefl  
(back) Subject: Re: [Residence Organs] Electro-Pneumatic Chests From: "william baron" <bourdon_8@yahoo.com> Date: Tue, 15 Aug 2000 10:45:56 -0700 (PDT)   I believe they were made by Kimball. One is a single rank chest. The other is a double. The guy I got them from was going to finish them as pitmans. I just brought the bigger over to the house last week with the help of my wife. She thinks I belong in a nut house for this one so it was nice to be welcomed into one.   The magnets I have are reisner. Beyond that I don't know. I think they're small port magnets.   Forgive me for asking, what exactly does a primary valve do anyway?   Thanks, Bill     --- Bob Loesch <rrloesch@jps.net> wrote: > Hi, Bill, welcome to the nut house! I'm sure that > there are many here more > qualified than I to help, but would you be so kind > as to tell us who built > your chests? Knowing who built them would give us a > better idea of how to > proceed.       __________________________________________________ Do You Yahoo!? Yahoo! Mail =96 Free email you can access from anywhere! http://mail.yahoo.com/  
(back) Subject: Re: Primaries for Electro-Pneumatic Chests From: <TheGluePot@aol.com> Date: Tue, 15 Aug 2000 17:12:19 EDT   >What are and why have primary valves?   The magnets have small ports that let the wind out of the action = pneumatics inside the chest, in your case the pouches which act as wind valves to the =   pipes above. The speed of the action relies upon the size of the magnet = port for pneumatics up to a certain size. When the pouch or pneumatic is too large the notes are slow to come on and go off with very poor repetition rates.   So, primary valves are used to control the large action pouches and pneumatics. The primary valve switches wind between chest pressure and atmospheric pressure just the way the magnets do. What controls the = primary valve is a small primary pneumatic to which it is attached. The magnet = then only controls a small primary pneumatic which requires little wind and = gives the system fast response with good repetition rates.   Hope that helps,   Al Sefl  
(back) Subject: Re: [Residence Organs] Re: Primaries for Electro-Pneumatic Chests From: "VEAGUE" <dutchorgan@svs.net> Date: Tue, 15 Aug 2000 16:43:08 -0500   .....what are and *why* primary valves?...... (das schnippenzie)     In laymans-terms, the magnet-operated primary valve opens the way for the larger secondary to collapse (whether it be pouch or matchbook pneumatic) under the pipe, thus ensuring quickier response.   Rick