Re: calculating copper plate indutance (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Wed, 26 Sep 2007 16:18:13 +0100
From: Chris Swinson <list@xxxxxxxxxxxxxxxxxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: calculating copper plate indutance (fwd)

HI Bart,

The cache is totally clear, when I visit your page it comes up with all the 
related files, I clear the cache again, and refresh the page and still only 
obtains the old files.

I got a mate of mine to check, he sent me the JS and HTML pages, so I can 
see the new page that way. If you could zip the new ones then I can bung it 
on my webpage and use it from there.

I tried the page again today, still the same, I have never seen anything 
like this before. The only thing I could suggest if you delete the related 
pages on your site, then reupload them (not just overwrite). I've had 
websites go a bit strange at times in not updating files. Though why it 
would only effect my pc I have no idea.

All your site files are re-downloaded each visit, and I only get the old 
files, so *SHRUGS* Really do not understand this one..

Strange thing is, I get your updated JAVATC pages fine!

cheers,
Chris



----- Original Message ----- 
From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Wednesday, September 26, 2007 2:54 PM
Subject: Re: calculating copper plate indutance (fwd)


>
> ---------- Forwarded message ----------
> Date: Tue, 25 Sep 2007 18:05:53 -0700
> From: Barton B. Anderson <bartb@xxxxxxxxxxxxxxxx>
> To: Tesla list <tesla@xxxxxxxxxx>
> Subject: Re: calculating copper plate indutance (fwd)
>
> Hi Chris,
>
> Man, that is odd. No, just one server for classictesla. Classictesla is
> on the Nebula server of LunarPages. I don't test with Opera. I tried it
> early in Opera's infancy but didn't like how the document objects were
> handled as far as passing data to and from.
>
> You may want to give Firefox a try. Firefox has come a long way these
> days and I use it almost exclusively now. I'm curious if you cleared the
> cache in IE6 while still on the flat ribbon calc page? If so, that might
> explain it as it will at least have to store the page that is open
> regardless. If your seeing no ohms box, then you are looking at a web
> page that is no longer on the server, so it must be cached on your pc as
> that's the only way you would be able to even bring it up.
>
> There should be 4 output boxes. The bottom is labeled "Winding
> Resitance" and it's unit is the Omega symbol with "m" in front of the
> symbol for milliohms (just in the event your still looking for the word
> "ohm").
>
> If you can't figure out the problem, let me know and I'll just send you
> the files offline.
>
> Take care,
> Bart
>
> Tesla list wrote:
>
>>---------- Forwarded message ----------
>>Date: Tue, 25 Sep 2007 11:07:22 +0100
>>From: Chris Swinson <list@xxxxxxxxxxxxxxxxxxxxxxxxx>
>>To: Tesla list <tesla@xxxxxxxxxx>
>>Subject: Re: calculating copper plate indutance (fwd)
>>
>>Hi Bart,
>>
>>I asked a mate of mine to try it and he says it works, I've tried IE6, IE7
>>and even tried opera, and still no ohms box.
>>
>>I've deleted the IE cache clean, I've never visisted classictesla in opera
>>so everything is new in there. Still, this one has got me stumpted.
>>
>>Looking at the HTML code, there is no box there for the ohms bit, looking 
>>at
>>the JS file, nothing in there either.
>>
>>I wonder if your website is held on a few servers or something, and the
>>server I happen to be trying has not caught up yet ? the only thing I can
>>think of :S
>>
>>Chris
>>
>>
>>
>>
>>----- Original Message ----- 
>>From: "Tesla list" <tesla@xxxxxxxxxx>
>>To: <tesla@xxxxxxxxxx>
>>Sent: Tuesday, September 25, 2007 2:35 AM
>>Subject: Re: calculating copper plate indutance (fwd)
>>
>>
>>
>>
>>>---------- Forwarded message ----------
>>>Date: Mon, 24 Sep 2007 17:48:28 -0700
>>>From: Barton B. Anderson <bartb@xxxxxxxxxxxxxxxx>
>>>To: Tesla list <tesla@xxxxxxxxxx>
>>>Subject: Re: calculating copper plate indutance (fwd)
>>>
>>>Hi Chris,
>>>
>>>It's working just fine for me. I think your browser is using the old
>>>cache script. Hold the shift key down and click on Reload in your
>>>browser after the page comes up. This should clear the cache and reload
>>>the new script. If still nothing, then go to your browser preferences
>>>and clear the cache and stored web pages there.
>>>
>>>I've checked it in both IE6 and Firefox and both work fine. BTW, the
>>>value is milliohms.
>>>
>>>This is something that occurs with the other javascript pages as well.
>>>There is a way to get rid of it (applying a rev to the script name), but
>>>I've yet to implement that. I might do that on the next go around. BTW,
>>>Netzero and similar dialup utilities are horrible for storing old stuff
>>>and not loading the new stuff.
>>>
>>>Take care,
>>>Bart
>>>
>>>Tesla list wrote:
>>>
>>>
>>>
>>>>---------- Forwarded message ----------
>>>>Date: Sun, 23 Sep 2007 19:24:42 +0100
>>>>From: Chris Swinson <list@xxxxxxxxxxxxxxxxxxxxxxxxx>
>>>>To: Tesla list <tesla@xxxxxxxxxx>
>>>>Subject: Re: calculating copper plate indutance (fwd)
>>>>
>>>>Hi Bart,
>>>>
>>>>No, there is nothing in the box whatsoever not even a zero. I did try 
>>>>100
>>>>turns and still nothing.
>>>>
>>>>The resistances are less than 10 milliohms I would imagine. I am only
>>>>using
>>>>a single turn of thick sheet so it should work out like 1 milliohm..
>>>>
>>>>Cheers,
>>>>Chris
>>>>
>>>>
>>>>
>>>>----- Original Message ----- 
>>>>From: "Tesla list" <tesla@xxxxxxxxxx>
>>>>To: <tesla@xxxxxxxxxx>
>>>>Sent: Sunday, September 23, 2007 7:03 PM
>>>>Subject: Re: calculating copper plate indutance (fwd)
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>>---------- Forwarded message ----------
>>>>>Date: Sun, 23 Sep 2007 10:40:01 -0700
>>>>>From: Barton B. Anderson <bartb@xxxxxxxxxxxxxxxx>
>>>>>To: Tesla list <tesla@xxxxxxxxxx>
>>>>>Subject: Re: calculating copper plate indutance (fwd)
>>>>>
>>>>>Hi Chris,
>>>>>
>>>>>Let me guess; you are seeing 0 in the resistance box? Ok, this is
>>>>>exactly why I said more precision past 3 decimal places. Just change
>>>>>your turns to like 100 and see what happens.
>>>>>
>>>>>I can always change the output to milliohms as this might make more
>>>>>sense for flat ribbon primary's. I should have done that from the 
>>>>>start.
>>>>>Ok, I'm off to do that. Should only take me a couple minutes.
>>>>>
>>>>>Take care,
>>>>>Bart
>>>>>
>>>>>Tesla list wrote:
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>>---------- Forwarded message ----------
>>>>>>Date: Sun, 23 Sep 2007 16:01:09 +0100
>>>>>>From: Chris Swinson <list@xxxxxxxxxxxxxxxxxxxxxxxxx>
>>>>>>To: Tesla list <tesla@xxxxxxxxxx>
>>>>>>Subject: Re: calculating copper plate indutance (fwd)
>>>>>>
>>>>>>Hi Bart,
>>>>>>
>>>>>>Thanks for taking the time to add it in!
>>>>>>
>>>>>>I can't get anything to come up in the resistance box though ?
>>>>>>
>>>>>>Cheers,
>>>>>>Chris
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>>Hi Chris,
>>>>>>>
>>>>>>>I added copper ribbon resistance to the output as requested.
>>>>>>>http://www.classictesla.com/java/flatribbon/flatribbon.html
>>>>>>>
>>>>>>>I've got it set to 3 decimal places. If your looking for more 
>>>>>>>precision
>>>>>>>for small turns, you can always calculate it.
>>>>>>>R=pL/A where p is resistivity of material, L is the length, and A is
>>>>>>>the
>>>>>>>cross sectional area.
>>>>>>>
>>>>>>>So, A = thickness x height
>>>>>>>L = Length of winding
>>>>>>>p = 0.000001678 ohms/cm (the number I'm using anyway)
>>>>>>>
>>>>>>>The resistivity of copper varies. This is part of the problem with
>>>>>>>resistance numbers. There are a lot of copper alloys and even 
>>>>>>>processes
>>>>>>>can change affect resistivity. Temperature is also a large factor. 
>>>>>>>The
>>>>>>>output value will assume a temp of 20C (68F) and the common 
>>>>>>>resistivity
>>>>>>>number shown above.
>>>>>>>
>>>>>>>Take care,
>>>>>>>Bart
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>>Would it be possible to mash the resistance calculation into that 
>>>>>>>>too
>>>>>>>>,
>>>>>>>>pretty pleaseeee ;o)
>>>>>>>>
>>>>>>>>Chris
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
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