DRBILL

I have only made one grammar mistake on the forum. And when I seen I done it, I taken it right back. No fooling. I taught for seven years in a graduate program at a local university. You should have seen the mess I had to read for term papers. These kids were working on master's degrees! All-in-all, the forum suits me. Enough on the personal attacks. DR BILL

---------------- On 4/29/2005 1:01:43 PM Marvel wrote: I guess we could get some Guineas for the yard. ---------------- OH yes! Guineas! We did that about fifteen years ago. The neighbors are just beginning to speak again. No need for a security system day or night. They followed the kids to the bus stop like ducklings. Noisy beyond belief. If they weren't eating they were crying out with every breath. You can sell your Klipschorns. You wont be able to hear them. DR BILL

---------------- On 4/28/2005 10:14:01 PM m00n wrote: Are there any kind of worm killers out there? ---------------- I hope not. Earthworms are a lawn's best friends. DR BILL

I enjoy the same experience, and everyone for whom I have demonstrated it has been similarly amazed. But note carefully: Not only do the speakers disappear, the front wall does also, making the listening room aurally immense. I no longer even remember what "next best" was. DR BILL

---------------- On 4/27/2005 4:51:43 PM NOSValves wrote: "I suggest that someone should look inside the component and see what is on the other side before going to this extreme measure." Craig, as usual, makes a very good point. The leads from the output transformer is the largest gauge wire that the speakers are going to "see" regardless of the size of the cables or connectors. Remember, PWK insisted that #14 zip was just fine. DR BILL http://forums.klipsch.com/idealbb/files/Banana%20Adaptor.jpg" border=0> ----------------

Looking for a single La Scala for center. Fort Worth TX. Have W-4a Williamson in BETTER than new condition. DR BILL

---------------- On 4/24/2005 7:42:53 PM lwhaples wrote: Darrell,They look Good! With all the pencil marks, looks like you had fun before any cuts were made. Keep posting the good work. Larry ---------------- "Measure twice, cut once!" Beautiful work. Thanks for sharing. DR BILL

---------------- On 4/24/2005 5:44:03 PM DizRotus wrote: Always a bad sign when lawyers get involved, right Dr. Bill? ---------------- Mine bills at $150 an hour. That's pretty bad for a retired priest. He says that's cheap. DR BILL DR BILL

It would seem that new patents are awarded and await challenges from previous patent holders. Then the lawyers get involved. And it better be a hot item to pay for all of that. It is a flawed system. It was a constant headache for PWK. DR BILL

KLIPSCHOHOLIC, you have a PM. BILL

That guy has a rude awakening when he visits the patent office. It was done c. 1974-5. The inventor was in my office in Alexandria LA and explained it in great detail. There are actually two beams of ultrasonic waves --one constant, and one frequency modulated. The ear picks up the "resultant" heterodyne of the two frequencies. It had very limited frequency response and was used for paging in large spaces such as a stadium or auditorium. It could be aimed precisely. In a noisy situation, it could be missed. Wireless technology made it redundant. I feel sorry for him after going to all that trouble. DR BILL

Craig, At $6, what's to lose?! If you don't know Michael, you need to. Give him a call; mention my name. This guy is a WEALTH of information. BILL

---------------- On 4/20/2005 12:56:46 PM NOSValves wrote: Where did you find information that this tube had 35 watts of plate dissapation ? _____ Check Mike's home page at the very bottom (vacuumtubes.com) He includes that information. DR BILL

OK. Here goes. MY favorite 6L6 is a 6BG6-GA with Michael Marks' base adaptor (vacuumtubes.com). The "guts" are identical to a 6L6-GC (35W plate dis.) except base wiring and a plate cap. Why the trouble? $6 for NOS! And they sound great. I use them almost exclusively in Williamson rebuilds. DR BILL

I hope we haven't dismissed this question too quickly. I would wonder if the hum is present when the equipment is switched off. If it is, then I would agree with the previous post. If not, then more research is needed. DR BILL

It is a shame that they were written with cheap ball-point pens. I have a pair of H's given to me by PWK himself and signed at the top "To Father Bill Risinger with best regards from Paul W. Klipsch." It is gone on one unit, and barely visable on the other. I would never part with them, but nevertheless, their value is greatly diminished without the personal note. DR BILL

Bill, Be brave, son. That a do-it-yourself-er. Go down to radiostore and pick up a couple of rca's and a soldering iron and a hank of solder. You may have to drill a hole. This is just the sort of project that will start you on a world of adventure. The next thing you know, you will be rebuilding a MARK III! Trust me. You can do it. Once, I had to walk out into traffic to get across a street in Naples, Italy! That changed my life. DR BILL

Almost any accordian music, but polkas are best. DR BILL

I have noted several Russian tubes with slightly smaller diameter pins than the NOS American/European equavalent. You may have sockets that have "wallowed" out from larger pins and now wont make contact with newer tubes. In any case, find a tube tester and make sure the new tubes aren't duds. Stranger things have happened. If the new tubes test good, you may have to pony up for new sockets. DR BILL

I only heard one. It was in the late '50's. It was not well placed --on a stage with a lot of curtains. I remember being disappointed and thinking that it was not nearly as good as my 15" Jenson bass-reflex. But what can you say about memory OR a high school kid's taste?! DR BILL

Check with Michael Marx at www.vacuumtubes.com He can probably supply you with a manual, and perhaps even some advice on this unit. DR BILL

Just for fun. DR BILL

O, WOW, this has gotten to be fun! Sometimes it is good to return our thoughts to the ancient Greek philosophers.<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /> F\6@<`:@F: (economy). "Regardless of all other proofs or arguments, that which has been done is not impossible". My home is always open to forum members. COME AND SEE! The ear is a remarkable device. There is a prehensile quality that allows us to hear the fundamental of any complex tone no matter how weak. Organbuilders use this in many inventive ways and some of their art is awfully (awefully) exciting. On any occasion, I can demonstrate a mix of two Klipschorns and two Heresies faithfully reproducing 16Hz. You can feel it in your guts or feel it in the walls. Put up your calculators and your formulae and COME AND SEE! We are in Fort Worth. If you come this way, get in touch. You will be welcome. You will leave a believer. Chances are that you will get something good to eat and drink (after Great Lent). Here endeth the second lesson. DR BILL

---------------- On 3/29/2005 9:55:07 AM 3dzapper wrote: "If you are hearing a "flutter" I would assume that you are listening to a 20Hz tone. At that frequency, the woofer is moving but the horn and room are not big enough to develope a wave. It can be felt but not heard." ---------------- Sez the Irishman at the pub, "Is this a private fight, or can anyone join in?" Klipschorns do not cut off sharply at 40Hz but follow a rather gradual slope down as low as 16Hz. I demonstrate this to myself almost every night when I end my evening with one of my excellently recorded pipe organ CDs, of which there are available at least eight that I know about. I have successfully demonstrated this to at least two other forum members -- Daddy Dee and RDmarsiii. And yes, I have also connected my audio generator and produced pure 20Hz tones. What did I hear? Nothing! But I could feel my internal organs being re-arranged and by touching the wall could feel the sheet-rock trying to work the nails out! This is exactly the same feeling that I have had while tuning a 32' high-cut E.M. Skinner pedal Bourdon. Those grave pitches were not meant to be "heard". Instead, they contribute a powerful emotional impact to the music. "Visceral" is the word often used. If you have not experienced it in a large stone church, it would be almost impossible to explain. Having said all of that, I need to tell you not to bother trying to reproduce my experiment with your mincy little SET's.* It isn't going to happen. And when listening to organ recordings, don't expect to keep your preamp controls in the "flat" position. (You can see, below, my gear.) Also, I wouldn't leave the 20Hz tone on at high power for more than 30 or so seconds. You wouldn't want to open or deform your woofer voice coils. *Nobody is more enamored with the "first magic watt" of SETs than I. But this is a job for Mark III's and KT90s! Now I've done it. Be merciful. DR BILL

Some of my friends love to play "stump the Doc," and they usually succeed. "What if you have two identical 20W tube amplifiers --can you connect them in parallel to produce 40W of headroom?" For example, common to common, 8 ohm to 8 ohm? I had to admit that I didn't have a clue. My gut reaction was that it was a bad idea. I'm anxious about feedback circuits, etc. What would it do to damping? What about the slight phase-shifts that are unique to each amplifier? Would the inherent "noise and hum" of each amplifier double? And on and on. I'm also aware that the ST-70 has a mono switch, just for this purpose but I have had no occasion to try it. Does anybody know for sure? DR BILL