Re: Tesla's CS Coil Data from ScanTesla and all....

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Terry Fritz <teslalist@xxxxxxxxxxxxxxxxxxxxxxx>

Hi Mike,

At 04:03 PM 6/26/2005, you wrote:
> Hi Terry,
>               I do find these results very interesting. Regarding the 
> extra coil taking it's feed inductively because of the coaxial
> position he ran it in back in CS, I have to wonder about that. You can see 
> the room was not that large and I don't think he ran it outside of the 
> main coil, tell me if he ever did please.

Yes!  But I don't see any 300 foot steamers :o))

http://hot-streamer.com/temp/CScoilForAWalk.jpg

Looks like a 50,000 watts input, 50 watts out thing...

> But when the coil was duplicated or semi-duplicated at Wendover, the extra 
> coil ran well outside and inside the 51 feet main coil. Of course, per the 
> computer simulation, the term "ran well" is a bit up in the air.

Can you ask Bob if he every ran it with the third coil just grounded rather 
than connected to the second coil?  In that case, coupling is the "only" 
power input.  That case may have detuned everything so much he never tried 
it...

> I would tend to think the distance from the ID of the outer coil to the OD 
> of the inner coil would have made for some rather loose coupling, compared 
> to the energy the extra coil received from the direct connection at it's 
> base from the top of the secondary.

That I don't know...  Once the models are updated, we can find the power 
from each one.

> Roughly that is ~21 feet extra coil OD to main coil ID, yes that is kind 
> of loose coupling.
> Since you are now looking at inductive coupling when the extra coil  is 
> within the main, I took a look at the drawing again because something 
> struck me as odd. 
> http://www.hot-streamer.com/mike2004/Wendover_Coil_Print_And_Spec.jpg 
> because I see what looks like a reverse sense winding  of the extra coil 
> compared to where it comes off the primary. Unless that was done for 
> convenience, which would not be good to do, note that the 50 feet of wire 
> from secondary dresses to the left hand side (facing) of the extra coil 
> base. This implicates the direction of winding to start point reference. 
> At the secondary top this wire feeds from, it shows, not clearly enough, 
> that if the end of the secondary simply went straight off the turn in the 
> direction of the extra coil (the 50 feet of wire) to the left side of 
> extra coil base and start point, they are wired out of phase, if you also 
> view them later in a center of main coil placement.
> But the turn at the top of the extra coil, by the print, shows the wire 
> exiting the winding and terminating at the top in the proper phase. In 
> stand alone outside placement, this phase issue in no big deal but if the 
> coupling inside the main coil is enough to take into account as extra 
> input power as you thought it might be taken if the program were so 
> modified, the phase may be wrong and bucking.

It "should" not mater...  I think the models can input a negative number 
for the coupling too which is like a reversed winding...  Maybe Tesla 
should have run his coil in New Zealand :o))

> What is confusing by the drawing is the base of extra coil starts in one 
> direction but ends at the top in the other direction.
> So we have 3 data points of coil winding direction, the one at top of 
> secondary, says CCW, the one at base of extra coil says CW and the top of 
> extra coil says CCW. A picture of the secondary from another site shows 
> the Extra coil, just like the print, gets a feed starting on the left hand 
> side of the extra coil base. See 
> http://home1.gte.net/res07cmo/hv/golka/golka.htm
>  for a couple of decent pictures showing this.
> So, the secondary base seems wired to the print, clearly if it winds 
> upward, it has to come out as a CW winding.
> Like in the old comedy,  who's on first?
> With the great spacing between Primary and extra, it may not make much 
> difference for your induction feed but if used, a closer look at this 
> phasing may be in order.
> For Malcolm a question, when you did that 1:25 ratio scale model, did you 
> use this print as a coil winding model, do you still have it, etc.

We can run the models for all cases of negative coupling...  Remind me if I 
forget 0:-)

> Regards,
> Mike
>
>
> ----- Original Message ----- From: "Tesla list" <tesla@xxxxxxxxxx>
> To: <tesla@xxxxxxxxxx>
> Sent: Sunday, June 26, 2005 3:27 PM
> Subject: Re: Tesla's CS Coil Data from ScanTesla and all....
>
>
> > Original poster: Terry Fritz <teslalist@xxxxxxxxxxxxxxxxxxxxxxx>
> >
> > Hi Bart,
> >
> > Dave from TCBOR sent me a bunch of Richard Hull's data.  I pieced 
> > together the rest with the programs.  It IS Tesla's Colorado Springs coil.
> >
> > I do wonder...  The third coil in Tesla's machine may have been able to 
> > pickup a substantial amount of energy not as a magnifier where the third 
> > coil is isolated, but as a standard coil where the induction from the 
> > primary/secondary was coupled to the third coil...  Not counting the 
> > coupling to the third coil may not be right...  Maybe Tesla's big machine 
> > was more of an Oudin coil t.................