DIYAPASON-L Digest #260 - Monday, February 12, 2001
 
Re: G.W. Odell and Al Sefl
  by <TheGluePot@aol.com>
Re: [Residence Organs]  1/2 length resonators
  by "Hugh Knapton" <knapton@superaje.com>
Re: [Residence Organs]  1/2 length resonators
  by "David Scribner" <david@blackiris.com>
ALL READ!!! New Virus Released Today
  by "David Scribner" <david@blackiris.com>
Re: 1/2 length resonators
  by "Larry Chace" <RLC1@etnainstruments.com>
 

(back) Subject: Re: G.W. Odell and Al Sefl From: <TheGluePot@aol.com> Date: Mon, 12 Feb 2001 04:30:53 EST   << > Also, I'd like to thank AL Sefl for all the interesting facts, tips and comments he > brings to this list. Not only are they accurately analyzed and = reasoned out, > but ALSO TESTED. Thanks AL !! > Regards > Tim Rickman >>   Thanks Tim, a compliment from the maker of the Rolls-Royce of Relays is certainly appreciated. You also have done a great deal of pipe organ work =   and that shows in your relay design. I really do love your relay that we = use at the Berkeley Community Theatre. The operation and programming is first =   rate.   As for Odell, I have worked on a couple of Odell trackers. They are wonderful instruments with very pleasing voicing for a cohesive sound. = The two that I worked on were also made very well and were a cut above the average tracker. These are fairly rare here on the west coast and I wish there had been more of them.   Best wishes to the list,   Al Sefl  
(back) Subject: Re: [Residence Organs] 1/2 length resonators From: "Hugh Knapton" <knapton@superaje.com> Date: Mon, 12 Feb 2001 16:42:55 -0500   At 5:55 PM -0800 2/9/01, Bob Loesch wrote: >A question for the voicers of the list: I have an opportunity to obtain a >set of 16' Tuba boots with no resonators. I have in mind making a set of >1/2 length wood resonators for it. >In a rank with the 8' octave full length and 16' octave 1/2 length, how >much larger in scale should the 16' 1/2-length resonators be, assuming >normal theatre-type 'tuba horn' voicing?   I have never voiced (or re-voiced, but have cured a note or two) a Tuba at 16' in the theatre style, but....   After giving the matter a little thought:   I could not imagine me attempting to do so with a 1/2 length resonator. The nature of the rank requires a "full dose of fundamental" (IMHO). Before resorting to 1/2 length (presumably because of height restraints), I would be considering a variation on "knuckling". Wooden resonators complicate this approach a little, but also allow for other possibilities ... much depends on the space that you have available! I can expand upon this idea if you wish.   With regard to Haskell basses, I don't have a great deal of experience with them.... but I believe them to still be a compromise! ... any that I have encountered, on all but the quietest of ranks, have been somewhat disappointing.   Hugh    
(back) Subject: Re: [Residence Organs] 1/2 length resonators From: "David Scribner" <david@blackiris.com> Date: Mon, 12 Feb 2001 19:34:01 -0600   At 4:42 PM -0500 2/12/01, Hugh Knapton wrote: >At 5:55 PM -0800 2/9/01, Bob Loesch wrote: >>A question for the voicers of the list: I have an opportunity to obtain = a >>set of 16' Tuba boots with no resonators. I have in mind making a set = of >>1/2 length wood resonators for it. In a rank with the 8' octave >>full length and 16' octave 1/2 length, how >>much larger in scale should the 16' 1/2-length resonators be, assuming >>normal theatre-type 'tuba horn' voicing? >[SNIP]. > >With regard to Haskell basses, I don't have a great deal of >experience with them.... but I believe them to still be a >compromise! .. any that I have encountered, on all but the quietest >of ranks, have been somewhat disappointing.   Although I have never heard a Haskelled Reed rank I think that they wouldn't cause any of the problems that are sometimes associated with Haskelled flues. I know that some builder has built one recently as it was featured in a magazine article - maybe in the TAO or Diapason.   I know from both reading the patent and also seeing the photos of this recent rank that the upper part of the resonator is "folded" (for want of a better word) back upon itself with a scaling increase in the upper part to adjust for the lower part of the resonator being inside. Where the upper part starts its downward travel there is a "lid" that rests on brackets attached to the lower part leaving a space for the sound waves to travel from one section to the other. I am sure there is something that is very specific about this distance between the sections but i would have to go find the patent to find out what the specifics are for this distance. I know that doing this increases the amount of space that a pipe takes up on a toeboard due to the increased size of the upper inverted section.   Larry Chace of this list is the one that probably has more information about the haskelling of reed pipes closer at hand than I have since my library is still a mess from the move last fall. I'm actually surprised that he hasn't chimed in on this already.   1/2 length resonators don't "couple" as well and don't produce the true fundamental pitch as strongly as a full length resonator. I gather this is for a theatre type instrument where you would want that fundamental to sound forth.   David  
(back) Subject: ALL READ!!! New Virus Released Today From: "David Scribner" <david@blackiris.com> Date: Mon, 12 Feb 2001 19:54:22 -0600   Folks   As you know, only the Administrator can post a Virus Warning and I only post one AFTER i have checked it out. Well, today is one of the very few virus warnings that get posted to this list.   This morning a new Virus - actually a worm - was discovered and has been seen to pose a serious threat. I received word about it from a Web Page at ABC News that was forwarded to me.   The following is from the Symantec Security Updates that i just looked at.   ***************************************** VBS.SST@mm   Discovered on: February 12, 2001 Last Updated on: February 12, 2001 at 01:47:42 = PM PST     VBS.SST@mm is a VBS email worm that has been encoded using a virus creation kit. The worm arrives as an attachment named AnnaKournikova.jpg.vbs When executed, the worm emails itself to everyone in your Microsoft Outlook book. On January 26, the worm will attempt to direct your Web browser to an Internet address located in The Netherlands.   This worm appears to have originated in the = Netherlands   Also Known As: VBS.Lee-o, VBS.OnTheFly ***********************************************   Please be aware and if you receive any mail with this attachment delete it IMMEDIATELY - DO NOT OPEN IT.   I am going to guess that they did make a mistake in the date in the above and am guessing that they mean February 26 instead of January 26.   If you are running an Anti-Virus program, as EVERYONE should be, I would go to the web site for your program and download the latest updates to the virus definitions file that the Anti-Virus program uses. I know that Symantec has updated their Virus Definitions files today. Without checking other Anti-Virus programs i am going to guess that they are also updating their information. I will caution you that there may be long download times at the various sites since everyone will be trying to update definitions.   Of course ALL of us need to practice Safe Computing - in other words NEVER, NEVER, NEVER open a file that is sent to us, even from a close friend, without knowing EXACTLY what this file contains. If for some reason you receive a file that you aren't expecting, ALWAYS WRITE the sending asking what it is before opening it.   If you want to read about the Virus yourself here are two links:   http://www.abcnews.go.com/sections/scitech/DailyNews/virus_010212_b.html   http://www.symantec.com/avcenter/venc/data/vbs.sst@mm.html   And now back to our regularly scheduled and hopefully safe Chatting. If you have any questions about this please direct your posting to me personally at the Administration address and NOT to the list.   David  
(back) Subject: Re: 1/2 length resonators From: "Larry Chace" <RLC1@etnainstruments.com> Date: Mon, 12 Feb 2001 22:31:11 -0500   The magazine article to which David Scribner referred is perhaps the one = by William Visscher in the December 1998 issue of the "Journal of American Organbuilding". That article shows a couple of diagrams of the Haskelled reed resonator but doen't really give terrible exact dimensions. Part of the reason for the ambiguity, perhaps, is the author's observation that many of the dimensions are not terrible critical!   Just as David described, picture a roughly half-length reed resonator, of wood or metal, of the normal inverted conical shape. How drop over that resonator a metal or wooden tube, closed at the top, and hold it = "somewhat" above the top of the conical portion. You now have a resonator that is folded down over itself.   In the magazine article, the photo shows that the tubes are wooden, and they look very much like normal wooden pipes except that at the bottom you can see the boot, tuning wire, and bottom portion of the conical = resonator.   If you had a lack of height, you could even place these pipes horizontally just as you might place a set of wooden Bourdons.   While William Haskell designed these pipes (and perhaps even took out a patent), they really are quite different from this short length *flue* pipes with their internal (or external) "qualifying tube". Mr. Visscher does mention that these reed pipes tend to send their tone down toward the floor, but perhaps for a 16' Tuba that isn't such a bad thing!   Larry Chace