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8" Drivers

You can light a bulb that has no wiring attached to it with your phone? You place that phone next to your head :jawdrop: :)

Back in my youth I was a CB radio enthusiast. I had a very high power linear amplifier in my truck, and if I "keyed down" the radio (transmitted) while using said amplifier, I could power a four foot fluorescent tube, wireless, if I held it close to the antenna. It would stay bright for about 15'-20' away from the antenna. That was using about 400 watts of power through a Wilson 1000 antenna.
 
Well, CBS thought that the basic amp circuits Leo used direct from the RCA tube manuals were poorly conceived. They were wrong about the "instabilities" so I guess Leo lucked out there.
If it were up to Edison we would have a DC generating station every half mile or so instead of the AC grid we use now.

Just some perspective of those you hold in high regard.

Didn't Edison (...or was it Tesla?) electrocute an elephant to prove a point. Hey...I'm not a fan of animal abuse but that's the foundation of rock 'n roll right there!

Riis
Virginia Beach, next to Norfolk the home of PETA (People Electrocuting Tremendous Animals)
 
Didn't Edison (...or was it Tesla?) electrocute an elephant to prove a point. Hey...I'm not a fan of animal abuse but that's the foundation of rock 'n roll right there!

Riis
Virginia Beach, next to Norfolk the home of PETA (People Electrocuting Tremendous Animals)

OK, gotta ask: What is this "Riis" sig all about? I've seen a few memebers use it, and I can't seem to figure out the meaning.

Thanks.
 
Didn't Edison (...or was it Tesla?) electrocute an elephant to prove a point. Hey...I'm not a fan of animal abuse but that's the foundation of rock 'n roll right there!

Riis
Virginia Beach, next to Norfolk the home of PETA (People Electrocuting Tremendous Animals)

Edison, public demonstrations of the dangers of Tesla's Alternating Current while trying to sell the Direct Current as a public utility.
 
[Invalid or Expired Link Removed]

From memory, 2 methods are used, one being rotary conversion and the other being solid state chopper conversion. Newer higher voltage power devices are making this process more and more efficient all the time.
 
[Invalid or Expired Link Removed]

From memory, 2 methods are used, one being rotary conversion and the other being solid state chopper conversion. Newer higher voltage power devices are making this process more and more efficient all the time.

Thanks for the link, reading now. AC transmission to DC conversion for transmission and then back to AC. Going to look for the gains to offset the probable conversion losses.
 
OK, gotta ask: What is this "Riis" sig all about? I've seen a few memebers use it, and I can't seem to figure out the meaning.

Thanks.

Glad you asked. I'd like to think it has the same mystic qualities as the "33" on Rolling Rock beer bottles but the stark reality is that it is my name. No foolin'.

True New Yorkers recognize it as there is a Jacob Riis Park.

Riis Unterzuber
 
The conversion losses are smaller compared to transmission losses where long distances are involved.

and yes gunn, DC-AC conversion eliminates the syncronization requirements since the destination syncronizes to itself independant of anything going on with the source end. Truely open loop back to the source.
 
Random stupid beer thoughts.....................................................

In common with any bit of lore worth theorizing about over a brew, a number of "explanations" for that mysterious '33' have sprung up over the years, including:
  • It refers to 1933, the year Prohibition was repealed. (The 21st Amendment abolished Prohibition on 5 December 1933.)

  • It took 33 steps to get from the brewmaster's office to the brewing floor.

  • The number of words in the brewing pledge on the back of the bottle total 33 words. ("Rolling Rock, from the glass lined tanks of Old Latrobe we tender this premium beer for your enjoyment as a tribute to your good taste. It comes from the mountain springs to you.")

  • It's the number of the racing horse pictured on the label.

  • The owner bet $33 on a horse (#33, of course) and bought the brewery with the proceeds in 1933.

  • There are 33 streams feeding into the reservoir from which the brewery draws its water.

  • Groundhog Day is the 33rd day of the year, and they make a big fuss over that holiday in Pennsylvania.

  • The number of letters in Rolling Rock's ingredients - water, malt, rice, hops, corn, brewer's yeast - adds up to 33.

  • Beer tastes best at 33 degrees. (It's just above the freezing point of water.)

  • 33 is journalism jargon for "end of copy." (Actually 30 is the term for this, not 33.)

  • Rolling Rock was brewed at 33 degrees.

  • It's related to the highest level status (33rd degree) attained by Freemasons.

  • The workers at the brewery belonged to union local number 33.
(Many of these same reasons have been offered to explain why Walt Disney's private club at Disneyland was named Club 33.)

Though the Prohibition explanation does at first blush appear the most likely, it's possible the 33 sneaked onto the label purely by happenstance.

The family of James Tito, one-time chief executive officer of Latrobe Brewing (makers of Rolling Rock beer) owned the brewery from the end of Prohibition until the company was sold in 1987. Based on notes and discussions with family members now dead, James Tito believes the mysterious '33' got there by accident when family members couldn't agree on the wording of a slogan to be printed on the bottle, or even whether the slogan should be long or short. Someone eventually came up with the 33-word pledge now in use, and to emphasize its brevity, he drew a large '33' on the paper. The printer to whom this wording was sent mistakenly thought the '33' was part of the copy and included it on the labels. By the time the mistake was discovered, so many labels had been printed and affixed to bottles that it would have been prohibitively expensive to scrap and replace them, therefore the mistake was retained as a permanent feature of the label. Thus every Rolling Rock bottle now sports the following pledge:
Rolling Rock. From the glass lined tanks of Old Latrobe we tender this premium beer for your enjoyment, as a tribute to your good taste. It comes from the mountain springs to you. "33"
The "mistake" explanation doesn't sound terribly convincing since the printer who sets and runs off thousands of labels before providing the customer with a proof copy to approve does so at his own risk. And even if someone from Rolling Rock had mistakenly approved the label design, error and all, there was no good reason why the errant '33' couldn't have been removed from the copy before the next printing.

So, the only real answer here is that no one knows the real answer. And perhaps that is the answer — after all, nothing helps sell a product like a little mystery.

Read more at http://www.snopes.com/business/hidden/rolling.asp#l3ASYWfHx08mv8RS.99
 
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Links between electrical grids (there are three in the US - eastern, western, and Texas) are DC, since the grids are not synchronized with each other.
For someone who wants to use 8" bass speakers the Traynor 808 is well-liked by people who use them. I have not bought one only because they weigh more than 100 lbs.
My Traynor DynaBass 300T has a pair of 8" drivers and weighs about 30lbs. I like it a lot.
 
Plenty of hate on here for 8" bass speakers ! But, I have been using (2) 4x8 Seismic Audio bass cabs for the past 1 1/2 years, and they sound GREAT ! (Plenty of hate on here for Seismic Audio products also). Pushing them with a Carvin BX1500 head. Now. granted - we have PA support for all of our gigs, and stage volume is pretty low. Not bad for cabs that I bought on sale for $109 EACH ! Definitely a case of getting more with less !