DIYAPASON-L Digest #64 - Tuesday, March 21, 2000
 
Re: Pedalboards
  by "Christiaan Dekter" <cdekter@primus.com.au>
Re: [Residence Organs]  REVERSE RELAY
  by "Robert  Eversman" <highnote@mhtc.net>
Re: [Residence Organs]  REVERSE RELAY
  by "Robert  Eversman" <highnote@mhtc.net>
[Residence Organs]  Re: Pedalboards
  by "David Scribner" <david@blackiris.com>
Re: [Residence Organs]  REVERSE RELAY
  by "Eric Sagmuller" <ess4@psu.edu>
blower felt
  by "Brian Graham" <bgraham@geaf.com>
Re: [Residence Organs]  blower felt
  by "Eric Sagmuller" <ess4@psu.edu>
Re: [Residence Organs]  blower felt
  by "Larry Chace" <rlc1@etnainstruments.com>
re: blower felt
  by "Tim Bovard" <tmbovard@arkansas.net>
 

(back) Subject: Re: Pedalboards From: "Christiaan Dekter" <cdekter@primus.com.au> Date: Tue, 21 Mar 2000 21:54:31 +1100   Hi Everyone   Thank you for your responses, they have been a great aid to me. Al Sefl, I don't know how expensive overseas shipping is, but if you are prepared to give me a used pedal board for free, then paying for the shipping might still be cheaper than buying a used pedal board here. I will investigate = as well with my organ-builder friend. If you, Al, could possibly find out how much it would cost to ship the pedal-board to Melbourne, Australia, = possibly in pieces, then I would be most obliged... You can respond to my private email address. I know this sounds like a silly idea but it might not be... :-)   John Haskey, your MIDI idea is good, and I have thought about it, but does it mean I have to get a MIDI thru box as well? My keyboard has MIDI out, = in and through, but I'm not sure if it will send MIDI events, as well as pass on MIDI events coming in, out through the same connection. My computer is connected to the keyboard via MIDI out, and the pedal-board would then be connected via MIDI in on the keyboard, I suppose.   I would also have to find out where to buy a good MIDI kit for the pedal board...   Thanks,   Christiaan Dekter   P.S> Sorry if this is off-topic, it is sort of a residence organ though... :-)    
(back) Subject: Re: [Residence Organs] REVERSE RELAY From: "Robert Eversman" <highnote@mhtc.net> Date: Tue, 21 Mar 2000 06:31:45 -0600   Thanks again for your help Eric. I found some old junk pedal gang switches and made a little relay for myself that turns neg to pos. Works real nice, just big and ugly. LOL   ---------- > From: Eric Sagmuller <ess4@psu.edu> > To: Residence Organ List <DIYAPASON-L@pipechat.org> > Subject: Re: [Residence Organs] REVERSE RELAY > Date: Friday, March 17, 2000 7:56 AM > > Robert wrote: > > > Since there are only 6 pedal stops couldn't I > >install some sort of reverse relay so that - can be changed to +. This way > >I can leave the current stop rail design alone. > > > > Hi Robert, > > I think I am clear on what you have. If so, this could be done very > easily with 6 small EM relays from Radio Shack. They cost about $3.00 > ea. As Larry said one could also use logic chips and or driver chips. > As the rest of the relay is EM I think I would just use some simple > relays. Can you read a schematic? If so I can draw you up a little > schematic, scan it, and e-mail it to you. > > Eric Sagmuller > > > DIYAPASON-L: a Discussion list for owners and builders of their own > Residence Pipe Organs. > HOMEPAGE : http://www.diyapason.pipechat.org > List: mailto:DIYAPASON-L@pipechat.org > Administration: mailto:owner-DIYAPASON@pipechat.org >  
(back) Subject: Re: [Residence Organs] REVERSE RELAY From: "Robert Eversman" <highnote@mhtc.net> Date: Tue, 21 Mar 2000 06:32:46 -0600   Thanks Larry, I used your idea about the gang switches which I had sitting around and it works real nice. Thanks again !   Robert   ---------- > From: Larry Chace <rlc1@etnainstruments.com> > To: Residence Organ List <DIYAPASON-L@pipechat.org> > Subject: Re: [Residence Organs] REVERSE RELAY > Date: Thursday, March 16, 2000 2:40 PM > > "Robert Eversman" <highnote@mhtc.net> asked about having a mixture of > polarities for his stop switches. There are several approaches to this > problem and the best one might depend upon several variables. > > To make it simple, since there are few stop switches involved, one approach > would be to get some simple relays (electro-mechanical switches!) that > could be operated from the stoptabs and could in turn produce the proper =   > polarity for the corresponding "organ" relay. > > If you don't like e/m relays, you can always "switch" (HA!) to various > solid-state devices such as CMOS inverters (CD4049, for example) or drivers > such as the ULN200x family. > > (If you don't recognize those terms, go to Radio Shack and look at their =   > little relays!) > > Larry Chace > > DIYAPASON-L: a Discussion list for owners and builders of their own > Residence Pipe Organs. > HOMEPAGE : http://www.diyapason.pipechat.org > List: mailto:DIYAPASON-L@pipechat.org > Administration: mailto:owner-DIYAPASON@pipechat.org >  
(back) Subject: [Residence Organs] Re: Pedalboards From: "David Scribner" <david@blackiris.com> Date: Tue, 21 Mar 2000 07:08:47 -0600   Christiaan   You will probably get more information by getting on the EORG-L (http://www.gulfcst.com/EORG-L) and asking some of these questions. I know that folks over on that list have discussed how to MIDI a pedalboard to work with their MIDI set-up.   Please remember that this list is primarily for owners/builders of Pipe Organs for their homes. Some of us do have some MIDI capability on our instruments but that is usually just an adjunct to the instrument.   David  
(back) Subject: Re: [Residence Organs] REVERSE RELAY From: "Eric Sagmuller" <ess4@psu.edu> Date: Tue, 21 Mar 2000 08:29:20 -0500   Glad you got it working! Eric         >Thanks again for your help Eric. I found some old junk pedal gang = switches >and made a little relay for myself that turns neg to pos. Works real = nice, >just big and ugly. LOL > >---------- > > From: Eric Sagmuller <ess4@psu.edu> > > To: Residence Organ List <DIYAPASON-L@pipechat.org> > > Subject: Re: [Residence Organs] REVERSE RELAY > > Date: Friday, March 17, 2000 7:56 AM > > > > Robert wrote: > > > > > Since there are only 6 pedal stops couldn't I > > >install some sort of reverse relay so that - can be changed to +. = This >way > > >I can leave the current stop rail design alone. > > > > > > > Hi Robert, > > > > I think I am clear on what you have. If so, this could be done very > > easily with 6 small EM relays from Radio Shack. They cost about $3.00 > > ea. As Larry said one could also use logic chips and or driver chips. > > As the rest of the relay is EM I think I would just use some simple > > relays. Can you read a schematic? If so I can draw you up a little > > schematic, scan it, and e-mail it to you. > > > > Eric Sagmuller > > > > > > DIYAPASON-L: a Discussion list for owners and builders of their own > > Residence Pipe Organs. > > HOMEPAGE : http://www.diyapason.pipechat.org > > List: mailto:DIYAPASON-L@pipechat.org > > Administration: mailto:owner-DIYAPASON@pipechat.org > > > >DIYAPASON-L: a Discussion list for owners and builders of their own >Residence Pipe Organs. >HOMEPAGE : http://www.diyapason.pipechat.org >List: mailto:DIYAPASON-L@pipechat.org >Administration: mailto:owner-DIYAPASON@pipechat.org    
(back) Subject: blower felt From: "Brian Graham" <bgraham@geaf.com> Date: Tue, 21 Mar 2000 09:03:06 -0600   Well, I'm still working on blower cleaning=20 and assembly.   This is a 2 HP Orgoblo that was in parts=20 when I bought it, and has a mismatched intake boot and no felt pads to sit on.   I believe the Spencer literature states=20 that the blower is to sit on "hair felt pads".=20 One of the blower section drawings shows these pads and they appear to be REALLY thick, like maybe 2". What have you all used for this padding? I thought maybe I'd laminate several layers of thick "bulletin board" cork=20 together for thick cork pads. Would this work?   Also, I just figured out last night that the=20 intake boot on the blower was not original=20 to it (the screw holes don't line up). It appears to be just slightly smaller than the original. Does this matter? I thought I'd make a round =BD" thick plywood collar, fasten it to the blower=20 w/ countersunk screws, screw the boot to the=20 collar with wood screws and paint it to match=20 the blower housing. Any ideas?   Thanks!   Brian Graham Lawrence, KS II/18 Estey residence organ        
(back) Subject: Re: [Residence Organs] blower felt From: "Eric Sagmuller" <ess4@psu.edu> Date: Tue, 21 Mar 2000 16:12:20 -0500   >Brian Wrote:     >I believe the Spencer literature states >that the blower is to sit on "hair felt pads". >One of the blower section drawings shows >these pads and they appear to be REALLY >thick, like maybe 2". What have you all used >for this padding? I thought maybe I'd laminate >several layers of thick "bulletin board" cork >together for thick cork pads. Would this work? >   Hmm, maybe mine should have something under it too. I have a 1 horse. I'll have to check the online Spencer manual. I remember reading that they are not to be fastened down. Right now it sits on two wooden cradles that sit on my concrete basement floor. Maybe they're not original. I assumed that would be fine. I plan to use a flexible windsleeve to isolate the blower form the static reservoir. When I run the blower blocked off it runs real smooth and does not vibrate. I can barely hear it running upstairs even with just the 3/4" plywood floor between. I will probably build an enclosure around it though to get total silence.   Eric    
(back) Subject: Re: [Residence Organs] blower felt From: "Larry Chace" <rlc1@etnainstruments.com> Date: Tue, 21 Mar 2000 16:41:30 -0500   Brian and Eric were talking about thick felt pads to place under their Spencer blowers. An alternative material might be the 1/2" thick (or so) rubber "Cow Mats" that are sold for use under cows' feet. There are probably also "Horse Mats" made to make horses happier whilst standing around. (Seriously!)   These pads will let the blower do a little dance, if its balance isn't quite right, without damaging anything. I'd guess that any dense rubber padding would work just fine.   Larry Chace  
(back) Subject: re: blower felt From: "Tim Bovard" <tmbovard@arkansas.net> Date: Tue, 21 Mar 2000 17:39:19 -0600   Hello, everyone --   This is gonna sound wacky -- but I swear it's true...<G>   I once serviced an old organ whose large blower (not a Spencer, I think, but similar in size and weight) sat on two old *auto tires* laid on the floor. My guess at the time was that it had been that way from day one -- the tires appeared to have been those skinny little Firestones found on '20's or '30's vehicles.   Though it looked strange, I suppose they did the trick, as it were -- they isolated the machine from the concrete floor (to abate noise = transmission), and allowed it a bit of movement (in case of vibration, or torque during start-up).   If your blower is in a basement area, or otherwise mostly out-of-view, perhaps this could be a solution...one that would certainly not require = any cash investment...as old tires are not hard to come by for free.   Tim B.