DIYAPASON-L Digest #803 - Saturday, May 3, 2003
 
Home Organ Progress
  by <Kzimmer0817@aol.com>
Austin Console
  by <Kzimmer0817@aol.com>
Re: [Residence Organs]  Austin Console
  by "John Haskey" <johnh@haskey.net>
 

(back) Subject: Home Organ Progress From: <Kzimmer0817@aol.com> Date: Sat, 3 May 2003 23:17:11 EDT     --part1_f5.2c94cef8.2be5e037_boundary Content-Type: text/plain; charset=3D"US-ASCII" Content-Transfer-Encoding: 7bit   List,   I finally took a couple steps forward this evening on my organ. No, the blower is still completely in pieces awaiting my taking of the motor to somebody for cleaning, lubricating, and whatever else they do to a 1926 motor.   Yesterday, I took the wood panels off my Austin console. The original = Austin contract bragged about their steel framed console that was completely playable even when totally stripped of its facade. I wanted to figure out =   the wiring and to assess what needs to be done. The top part that = contains the stop rail and tripper combination action tilts up out of the way on hinges. Likewise the Swell keyboard tilts up.   1. First thing, it's really nasty all over. Mouse poop all over the = place. I guess the little guys tracked it all over the wood. 2. It appears that the cables were originally fashioned in situ. IOW, individual wires soldered to key contacts and run to the junction strips. =   Some kind of string was used to bunch up the wires into cables, then these =   were wrapped with black cloth tape. Most of the small wires from the key contacts feel "waxy". 3. I unwound the tape from the entire length of the cables going from the = 12 coupler stops to their respective coupler assemblies at the back ends of = the keys. Since I will most likely have to rewire/resolder these assemblies, = I wanted to make sure which coupler went to which little "thingy". 4. The Austin coupler assemblies resemble a miniature version of the = action they use in their Universal Windchest. In my case the Swell has 3 = couplers (16-8-4). As you press a key, a small wooden slider slides three tiny fingers (contacts) forward. For each coupler, there is an eccentrically mounted bus that acts like a cam. When the coupler is drawn, a magnet rotates this bus slightly so the "cam" now is close enough to the contact finger to make contact when the key is pressed. All this is incredibly dirty. Anything that looks like it should be padding is shot. 5. I finally figured out the wiring scheme underneath this assembly where =   the coupling takes place and the actual cable starts. The little fingers = for the 16 coupler are connected by short wires to the appropriate finger an octave lower on the 8' row leaving the bottom 12 contacts of the 16' = coupler vacant. The reverse takes place on the 4' coupler. I tho't that the = cable would come from the 8' contacts, but the main bulk of the cable originates =   from the contact fingers of the 4' row (actually, notes 13-73) with the bottom octave of the 8' octave (notes 1-12) coming from the bottom 12 contacts of the 8' row. 6. Feeling satisfied that I had the wiring scheme figured out, I cut the cable leaving about 8" of each wire hanging from the underside just to = make sure I remember. Of course, I wrote down a diagram of the scheme. 7. Now, I removed 4 screws and removed the coupler assembly from the keyboard frame. Now I will be able to really look over the mechanism and = get it cleaned up. I would appreciate any pointers for this part. 8. I traced out the 5 wires attached to the coupler assembly for the = pedal. Interestingly, after I got the assembly opened, i noticed that a bracket = had been screwed down literally holding the first coupler in the "on" = position. Tracing the wire backwards found it attached to the 16' Bourdon stop. I haven't looked to see if this stop has another wire coming from it to go = to the pedal relay panel. The 2nd coupler bus was attached to the 8' = Gedeckt. The other 3 buses are attached to the S/P 8, S/P 4, and G/P 8 couplers. 9. My thinking is that the original configuration was modified by Dr. = Doty when he acquired the organ and unified the Stopped flute to provide more pedal stops than just the 16 and 8 Flute. I haven't yet traced the wires leaving the pedal coupler assembly yet. I imagine that the "permanently = on" coupler bus probably goes to the pedal relay magnets. Then the added pedal stops activate the Reisner gang switches on the relay panel. 10. There are a few long boards that are used as junction strips. They = have numerous slots cut on the edge. It appears that the wires from the = keyboard coupler switches are twisted and soldered to the appropriate wire to form = the cable to the chest or relay. Then this length of soldered and twisted = wire is slipped into the slot and the end is poked into a matching hole. The slot, I guess, just keeps the two wires from stressing the solder joint.   Soooooo, 1. I will unsolder the contacts from under the assemblies. 2. I will clean up the coupler assemblies - wood and contacts. 3. I will figure out what the "cord looking" thing is that goes around it =   under the front edge of the "movement" so I can replace it. 4. I will resolder the coupler wires. 5. I will resolder wires to become a cable from the keyboard to the = junction strip. 6. I may mount punch down strips onto the existing junction strips to = make connection easier.   Since there's a lot of verbage here, I won't post any questions on this posting. I do have a couple questions, but will post them individually.   Maybe this won't be as daunting of a task as I thought. I should be a soldering expert by the time I'm finished.   Keith   --part1_f5.2c94cef8.2be5e037_boundary Content-Type: text/html; charset=3D"US-ASCII" Content-Transfer-Encoding: quoted-printable   <HTML><FONT FACE=3D3Darial,helvetica><FONT SIZE=3D3D2 = FAMILY=3D3D"SANSSERIF" FACE=3D =3D3D"Arial" LANG=3D3D"0">List,<BR> <BR> I finally took a couple steps forward this evening on my organ.&nbsp; No, = th=3D e blower is still completely in pieces awaiting my taking of the motor to = so=3D mebody for cleaning, lubricating, and whatever else they do to a 1926 = motor.=3D <BR> <BR> Yesterday, I took the wood panels off my Austin console.&nbsp; The = original=3D20=3D Austin contract bragged about their steel framed console that was = completely=3D playable even when totally stripped of its facade.&nbsp; I wanted to = figure=3D out the wiring and to assess what needs to be done.&nbsp; The top part = that=3D contains the stop rail and tripper combination action tilts up out of the = w=3D ay on hinges.&nbsp; Likewise the Swell keyboard tilts up.<BR> <BR> 1.&nbsp; First thing, it's really nasty all over.&nbsp; Mouse poop all = over=3D20=3D the place.&nbsp; I guess the little guys tracked it all over the wood.<BR> 2.&nbsp; It appears that the cables were originally fashioned in = situ.&nbsp;=3D IOW, individual wires soldered to key contacts and run to the junction = stri=3D ps.&nbsp; Some kind of string was used to bunch up the wires into cables, = th=3D en these were wrapped with black cloth tape.&nbsp; Most of the small wires = f=3D rom the key contacts feel "waxy".<BR> 3.&nbsp; I unwound the tape from the entire length of the cables going = from=3D20=3D the 12 coupler stops to their respective coupler assemblies at the back = ends=3D of the keys.&nbsp; Since I will most likely have to rewire/resolder these = a=3D ssemblies, I wanted to make sure which coupler went to which little = "thingy"=3D ..<BR> 4.&nbsp; The Austin coupler assemblies resemble a miniature version of the = a=3D ction they use in their Universal Windchest.&nbsp; In my case the Swell = has=3D20=3D 3 couplers (16-8-4).&nbsp; As you press a key, a small wooden slider = slides=3D20=3D three tiny fingers (contacts) forward.&nbsp; For each coupler, there is an = e=3D ccentrically mounted bus that acts like a cam.&nbsp; When the coupler is = dra=3D wn, a magnet rotates this bus slightly so the "cam" now is close enough to = t=3D he contact finger to make contact when the key is pressed.&nbsp; All this = is=3D incredibly dirty.&nbsp; Anything that looks like it should be padding is = sh=3D ot.<BR> 5.&nbsp; I finally figured out the wiring scheme underneath this assembly = wh=3D ere the coupling takes place and the actual cable starts.&nbsp; The little = f=3D ingers for the 16 coupler are connected by short wires to the appropriate = fi=3D nger an octave lower on the 8' row leaving the bottom 12 contacts of the 16'=3D coupler vacant.&nbsp; The reverse takes place on the 4' coupler.&nbsp; I = th=3D o't that the cable would come from the 8' contacts, but the main bulk of = the=3D cable originates from the contact fingers of the 4' row (actually, notes = 13=3D -73) with the bottom octave of the 8' octave (notes 1-12) coming from the = bo=3D ttom 12 contacts of the 8' row.<BR> 6.&nbsp; Feeling satisfied that I had the wiring scheme figured out, I cut = t=3D he cable leaving about 8" of each wire hanging from the underside just to = ma=3D ke sure I remember.&nbsp; Of course, I wrote down a diagram of the = scheme.<B=3D R> 7.&nbsp; Now, I removed 4 screws and removed the coupler assembly from the = k=3D eyboard frame.&nbsp; Now I will be able to really look over the mechanism = an=3D d get it cleaned up.&nbsp; I would appreciate any pointers for this = part.<BR=3D > 8.&nbsp; I traced out the 5 wires attached to the coupler assembly for the = p=3D edal.&nbsp; Interestingly, after I got the assembly opened, i noticed that = a=3D bracket had been screwed down literally holding the first coupler in the = "o=3D n" position.&nbsp; Tracing the wire backwards found it attached to the 16' = B=3D ourdon stop.&nbsp; I haven't looked to see if this stop has another wire = com=3D ing from it to go to the pedal relay panel.&nbsp; The 2nd coupler bus was = at=3D tached to the 8' Gedeckt.&nbsp; The other 3 buses are attached to the S/P = 8,=3D S/P 4, and G/P 8 couplers.<BR> 9.&nbsp; My thinking is that the original configuration was modified by = Dr.=3D20=3D Doty when he acquired the organ and unified the Stopped flute to provide = mor=3D e pedal stops than just the 16 and 8 Flute.&nbsp; I haven't yet traced the = w=3D ires leaving the pedal coupler assembly yet.&nbsp; I imagine that the = "perma=3D nently on" coupler bus probably goes to the pedal relay magnets.&nbsp; = Then=3D20=3D the added pedal stops activate the Reisner gang switches on the relay = panel.=3D <BR> 10.&nbsp; There are a few long boards that are used as junction = strips.&nbsp=3D ; They have numerous slots cut on the edge.&nbsp; It appears that the = wires=3D20=3D from the keyboard coupler switches are twisted and soldered to the = appropria=3D te wire to form the cable to the chest or relay.&nbsp; Then this length of = s=3D oldered and twisted wire is slipped into the slot and the end is poked = into=3D20=3D a matching hole.&nbsp; The slot, I guess, just keeps the two wires from = stre=3D ssing the solder joint.<BR> <BR> Soooooo, <BR> 1.&nbsp; I will unsolder the contacts from under the assemblies.<BR> 2.&nbsp; I will clean up the coupler assemblies - wood and contacts.<BR> 3.&nbsp; I will figure out what the "cord looking" thing is that goes = around=3D it under the front edge of the "movement" so I can replace it.<BR> 4.&nbsp; I will resolder the coupler wires.<BR> 5.&nbsp; I will resolder wires to become a cable from the keyboard to the = ju=3D nction strip.<BR> 6.&nbsp; I may mount punch down strips onto the existing junction strips = to=3D20=3D make connection easier.<BR> <BR> Since there's a lot of verbage here, I won't post any questions on this = post=3D ing.&nbsp; I do have a couple questions, but will post them = individually.<BR=3D > <BR> Maybe this won't be as daunting of a task as I thought.&nbsp; I should be = a=3D20=3D soldering expert by the time I'm finished.<BR> <BR> Keith</FONT></HTML>   --part1_f5.2c94cef8.2be5e037_boundary--  
(back) Subject: Austin Console From: <Kzimmer0817@aol.com> Date: Sat, 3 May 2003 23:29:03 EDT     --part1_b2.1c5b601c.2be5e2ff_boundary Content-Type: text/plain; charset=3D"US-ASCII" Content-Transfer-Encoding: 7bit   List,   Does anybody know of a diagram showing the wiring scheme of an Austin console? I think I've found two common busses. Running the length of the =   console are two rods a few inches apart. To each is attached a stiff insulated wire. I remember cutting a coupler supply wires that came from = a small porcelain fuse assembly (that contained a couple fuses) attached to = the platform behind the console. So, I'm assuming that these are two wires coming from the rectifier supplying current to the console.   I've noticed that some things are attached to one of the rods and some = things are attached to the other. For example, the little springs that attach to =   the little coupler busses mentioned in my previous posting are attached to = a metal bar that is wired to one of the rods. The individual magnets for = the couplers each have a lead attached to a bar that's wired to the other rod. = Each magnet, then, has a wire attached to its respective stop tab.   I'm wondering if one of these rods is positive and one is negative. Of course, I plan to trace each wire attached to these rods to see if I can = come up with anything.   Thanks, Keith   --part1_b2.1c5b601c.2be5e2ff_boundary Content-Type: text/html; charset=3D"US-ASCII" Content-Transfer-Encoding: quoted-printable   <HTML><FONT FACE=3D3Darial,helvetica><FONT SIZE=3D3D2 = FAMILY=3D3D"SANSSERIF" FACE=3D =3D3D"Arial" LANG=3D3D"0">List,<BR> <BR> Does anybody know of a diagram showing the wiring scheme of an Austin = consol=3D e?&nbsp; I think I've found two common busses.&nbsp; Running the length of = t=3D he console are two rods a few inches apart.&nbsp; To each is attached a = stif=3D f insulated wire.&nbsp; I remember cutting a coupler supply wires that = came=3D20=3D from a small porcelain fuse assembly (that contained a couple fuses) = attache=3D d to the platform behind the console.&nbsp; So, I'm assuming that these = are=3D20=3D two wires coming from the rectifier supplying current to the console.<BR> <BR> I've noticed that some things are attached to one of the rods and some = thing=3D s are attached to the other.&nbsp; For example, the little springs that = atta=3D ch to the little coupler busses mentioned in my previous posting are = attache=3D d to a metal bar that is wired to one of the rods.&nbsp; The individual = magn=3D ets for the couplers each have a lead attached to a bar that's wired to = the=3D20=3D other rod.&nbsp; Each magnet, then, has a wire attached to its respective = st=3D op tab.<BR> <BR> I'm wondering if one of these rods is positive and one is negative.&nbsp; = Of=3D course, I plan to trace each wire attached to these rods to see if I can = co=3D me up with anything.<BR> <BR> Thanks,<BR> Keith</FONT></HTML>   --part1_b2.1c5b601c.2be5e2ff_boundary--  
(back) Subject: Re: [Residence Organs] Austin Console From: "John Haskey" <johnh@haskey.net> Date: Sat, 3 May 2003 20:29:24 -0700 (PDT)       On Sat, 3 May 2003 Kzimmer0817@aol.com wrote:   > List, > > Does anybody know of a diagram showing the wiring scheme of an Austin > console? I think I've found two common busses. Running the length of = the > console are two rods a few inches apart. To each is attached a stiff > insulated wire. I remember cutting a coupler supply wires that came = from a > small porcelain fuse assembly (that contained a couple fuses) attached = to the > platform behind the console. So, I'm assuming that these are two wires > coming from the rectifier supplying current to the console. > > I've noticed that some things are attached to one of the rods and some = things > are attached to the other. For example, the little springs that attach = to > the little coupler busses mentioned in my previous posting are attached = to a > metal bar that is wired to one of the rods. The individual magnets for = the > couplers each have a lead attached to a bar that's wired to the other = rod. > Each magnet, then, has a wire attached to its respective stop tab. > > I'm wondering if one of these rods is positive and one is negative. Of > course, I plan to trace each wire attached to these rods to see if I can = come > up with anything. >   Hi Keith,   Co-incidentally I just had the console of the Austin organ at my church open last weekend. Looking at the console from the back toward the left side were two copper 'buss' rods as you describe. I'm pretty sure they represent the positive and the negative from the DC supply but I didn't stick a voltmeter on them to be sure. I was measuring the AC output of the chime transformer to see about getting my own set of chimes going... If no-one else can help I can open the console again and take a look. This is Austin Opus 2130 a two manual 31 stop organ.   ---john.