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Messages 154 - 194 of 1546   Oldest  |  < Older  |  Newer >  |  Newest
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154
Harvey: A little hard to follow your descriptions without drawings but sounds as if you're embarking on an interesting project and we'll be interested in...
Ed Phillips
evptca
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Apr 1, 2007
3:18 pm
155
... The first measurements are being made using four segments of 9 square array, or four segments /wind; (in a square wound coil design) for a 9 wind coil. I ...
Harvey Norris
harvich
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Apr 1, 2007
6:10 pm
156
This is not an April Fool's Joke, although alas once again this year I have missed an opportunity to reveal some remarkable things. Its probably not an...
Harvey D Norris
harvich
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Apr 1, 2007
8:23 pm
157
Supposedly it is the turns ratio between primary and secondary that negotiates the corresponding voltage rise ratio on a transformer, somewhat religiously...
Harvey D Norris
harvich
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Apr 6, 2007
5:12 am
158
... Well. Sort of. In simplified explanations in some coursework. Tesla Coils, especially, spark gap ones have other things going on. Consider the case of an...
davep@...
oddjob1947
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Apr 6, 2007
7:42 am
159
Hi Harvey, While winding long solenoid coils for my wireless power transmitter I would intentionally overwind and then gradually snip off a fixed amount of...
David Thomson
volantis
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Apr 6, 2007
1:24 pm
160
Consider the case of an 'induction coil' (as the term used to be used), or any inductor. Feed it a 'squar(ish) wave, with fast rise time. Perfectly...
Ed Phillips
evptca
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Apr 7, 2007
12:07 am
161
What I found was related to your investigation. As I removed the wire, one turn at a time, I found the resonance of the coil did not increase linearly. The...
Ed Phillips
evptca
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Apr 7, 2007
1:01 am
162
Hi Ed, ... Not much, but enough to make a noticeable difference in the resonance. ... If I knew, I would tell you. I haven't explored it enough to figure it...
David Thomson
volantis
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Apr 7, 2007
1:47 am
163
Dave, I looked at your graphs.......I'm pretty darn good at seeing trends, but didn't see anything tht stood out. Perhaps you have some external objects...
Mike
megavolts61
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Apr 7, 2007
9:04 am
164
Hi Mike, Thank you for not trusting my measurement abilities. I can assure you I took every precaution to make each measurement have the same set of ...
David Thomson
volantis
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Apr 7, 2007
10:42 am
165
Hi, There was a "major announcement" from MIT today about wireless energy... WiTricity... http://www.google.com/search?q=witricity The news accounts were not...
vardan1899
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Jun 9, 2007
2:59 am
166
Terry, Lmao...you just don't wanna fork over that $100 to a bunch of MIT nerds. Just Kidding, of course....that $100 is mine if I ever get time off enough...
Mike
megavolts61
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Jun 9, 2007
3:27 am
167
You had better hurry!! I have been running simulations on the MIT system all day, and they seem to have the goal easily in their grasp!! They just need to...
vardan1899
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Jun 11, 2007
11:34 pm
168
You had better hurry!! I have been running simulations on the MIT system all day, and they seem to have the goal easily in their grasp!!" Not as I understood...
Ed Phillips
evptca
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Jun 12, 2007
1:06 am
169
Hi, http://f1.grp.yahoofs.com/v1/IP5tRhDs7vU1DCHdg-6bisawVzg0ZIylvH9q1z7J7iSquGjX9Dy6sK6XDGOC3rHLC5IvFpX89GZs2XTA-Hco7g/TeslaPrize.pdf If the "goofy yahoo link...
vardan1899
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Jun 12, 2007
2:40 am
170
Hi Terry, all, I got 100% efficiency over 1.3m using a 400kHz TC system (no connection between Rx-Tx at all, not even a common ground connection, achieved May...
Gavin Dingley
dingley76
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Jun 12, 2007
12:08 pm
171
Hi Terry, all, I got 100% efficiency over 1.3m using a 400kHz TC system (no connection between Rx-Tx at all, not even a common ground connection, achieved May ...
Ed Phillips
evptca
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Jun 12, 2007
7:51 pm
172
Hi, http://f1.grp.yahoofs.com/v1/IP5tRhDs7vU1DCHdg-6bisawVzg0ZIylvH9q1z7J7iSquGjX9Dy6sK6XDGOC3rHLC5IvFpX89GZs2XTA-Hco7g/TeslaPrize.pdf If the "goofy yahoo link...
Ed Phillips
evptca
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Jun 12, 2007
10:51 pm
173
Hi, I wrote up my notes on WiTricity in the files section here: ...
vardan1899
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Jun 13, 2007
4:38 am
174
I hate to say it Terry, but it was easy for me over ten years ago. Just wish I had time to mess with it since you made the challenge. When I moved away...
Mike
megavolts61
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Jun 13, 2007
5:53 am
175
Hi Ed, I updated the paper in the files section with WiTricity-1.pdf. I just added the last page is all. I resolved that the problem where their capacitance...
vardan1899
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Jun 13, 2007
10:42 pm
178
... Interstingly, ca 1888, in the book Lighting Conductors and Guards, by Lodge, the 6.mumble Hz freq is mentioned. Unclear if this was predicited or...
Dave Pierson
oddjob1947
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Aug 17, 2007
6:32 am
186
This new thread is a continuation of the discussion about wireless transmission using Tesla coils that shows up occasionally on the Tesla Coil Builders List....
Gary Peterson
garylpeterson
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Jan 15, 2008
9:58 pm
188
... There is no such thing as a radio receiver which detects only (radiated Hertzian) radio waves. Receivers detect only fields, and cannot distinquish...
Bill Beaty
bjbeaty
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Jan 16, 2008
8:03 pm
189
This new thread is a continuation of the discussion about wireless transmission using Tesla coils, showing up occasionally on the Tesla Coil Builders List. It...
Gary Peterson
garylpeterson
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Jan 17, 2008
7:08 pm
191
This new thread is a continuation of the discussion about wireless transmission using Tesla coils, showing up occasionally on the Tesla Coil Builders List. It...
Gary Peterson
garylpeterson
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Jan 18, 2008
5:38 pm
192
To perform a proper test of TC "ground conduction," you'd have to lift your conventional radio receiver to various altitudes and record the signal strength. A...
Ed Phillips
evptca
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Jan 19, 2008
12:10 am
193
Any data collected in the near field zone will be essentially meaningless because of the radial voltage gradient in the vicinity of the Tesla coil RF...
Gary Peterson
garylpeterson
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Jan 20, 2008
4:51 am
194
... Um... What does "non-Hertzian" mean? In other words, how did Tesla use the concept? Are you sure you shouldn't be saying "non-Maxwellian" instead?...
Bill Beaty
bjbeaty
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Jan 25, 2008
6:16 pm
Messages 154 - 194 of 1546   Oldest  |  < Older  |  Newer >  |  Newest
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