Arghh

Doc B

Former President For Life
Staff member
Tonight there is one guy on AA saying a power transformer must be 36" away from the rest of the circuit (a poster who for years I have suspected of retrieving all of his vast experience from Wikipedia), and another guy saying that mesh plate tubes can catch electrons better because the mesh is so fine ( I can't even comment, because I start giggling every time I think about it). In case anyone wonders why I decided to disassociate myself from AA...at some point reading posts on AA stops being amusing and gets more like being around a person with an uncontrollable tic.
 
Maybe a little electron net placed around the transformer, to catch stray electrons, preventing from interfering with the circuit (nets are meshy? right?)
 
LMAO!  I've got some little baggies of pebbles for you to tape to your cables!  They're the "fruity" ones, if that makes a difference!
 
Doc,

Same thing on AC -- so many people there who are just total consumers of marketing crap and haven't got a clue what the hell they're talking about, plus lots of cool-aid drinkers who will buy the "AC product of the week" just because so and so said it was the "best" he ever heard, etc.

One of my favorite recommendations was a guy asking for advice on a low foltage transformer (9v or so secondary) and the the guy who responded by saying that he'd always recommend a double-C core transformer, and included a link to an Audio Note technical blurb on the autionotekits web site.  I really had to restrain my self from asking him for a pointer to a listing for a double-C core filament transformer.  This guy is always full of sage audio advice, apparently has nearly unlimited money to spend and freely admits he has no technical background.

Of course there are also some really smart and genuinely helpful and experienced people there too, but they seem to be dwindling in numbers.

-- Jim
 
Doc B. said:
Tonight there is one guy on AA saying a power transformer must be 36" away from the rest of the circuit (a poster who for years I have suspected of retrieving all of his vast experience from Wikipedia), and another guy saying that mesh plate tubes can catch electrons better because the mesh is so fine ( I can't even comment, because I start giggling every time I think about it). In case anyone wonders why I decided to disassociate myself from AA...at some point reading posts on AA stops being amusing and gets more like being around a person with an uncontrollable tic.

LOL, very funny!  Thanks I needed that.

Debra
 
My Momma used to say, "Ignorance is Bliss!"  I have added, "And there are a lot of blissful folks out there."

By the way, the uncontrollable tic could be Turette's. 
 
I didn't see those posts yet.  I've been spending the last hour reading the voltage devider(sic) thread. 

Yes, it is funny and entertaining for awhile, then you stop and ask yourself 'where did the last 20 minutes of my life go???'
 
Signal to noise ratio ... always an issue. Is a forum still ok when it has 90% noise, and I don't mean this one?

I don't mind the idiotic posts all that much, but I tune out when I can no longer find the truffels, because there is just too much blither and bile.
 
I tuned out of AA after a flamefest where several members, engineers in the know mind you (at least while they were online), swore that there was no need to build speakers that could play below 50hz. Apparently the physical length of the wavelengths are so long below that frequency that you would have to sit over 30 feet away to hear them. Furthermore, you can only hear something at the exact moment the wavelength is at 1 cycle or more. In addition, you imagine you hear below 50hz because you have heard it before, other places than your listening room of course, and your brain fills in all the information below 50hz from memory. Claiming to have heard below 50hz was to no avail, just your imagination. Why my imagination could hear a test tone between 10 and 49hz, and identify it without knowing before hand what was being played, was not explained.
 
ssssly said:
  .   .   .    I tuned out of AA after a flamefest where several members, engineers in the know mind you (at least while they were online), swore that there was no need to build speakers that could play below 50hz. Apparently the physical length of the wavelengths are so long below that frequency that you would have to sit over 30 feet away to hear them.    .   .   .  

In defense of inexperienced engineers, not PJ or me, they have been taught but don't have the real world experience with the acoustic phenomenon.  Experience is a great teacher.  Like playing a bass test tone and walking around the room and finding spots with a suck out, null, and spots with way too much bass, the resonant spots.  

It is ignorance, the lack of knowledge, in this case experience.  I have smoked all kinds of friends who were engineers with the volume of 3.5 WPC, a Power Wedge that made the sound louder (lowered the noise floor), and Armorall making a CD sound noticeably better.

Caucasian Blackplate said:
My lungs can hear 10 hz, just crank up the volume enough and breathing becomes impaired! ;)

Bwa, ha, ha, ha!  I laugh a good belly laugh.  

I put a sub on it's back (cone up) and hooked it to a signal generator in a stereo shop I worked at.  The crossover was 100 Hz.  At 100 the tone was clear but low volume, at 50 Hz it was full and firm, at 20 Hz we could have tossed salad.  The glass windows were rattling in their frames, I thought one or two might jump from the frame.  But you didn't really hear anything, it was tactile!  My, then almost flat, belly wiggled, my lungs were being pumped.  It was one of the most fun audio experiences I have had.
 
Want to try something fun? Take a piece of 1/2 inch styrofoam, put it in a frame to secure the edges, then plug it into a high power amp (positive on the top, negative on the bottom, or vice versa). It won't be very musical but it will play music from about 250-1000hz. Is a neat party trick. Will amaze most people. Will work with a pane of glass if you have enough power. People freak out when you plug your sliding glass door into a Krell monoblock.
 
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