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

Original poster: "Bart B. Anderson" <bartb@xxxxxxxxxxxxxxxx>

Cool, thanks Terry (I'm really not going crazy!).

I modeled the Wendover coil and came up with a completely different set of parameters (thus, my concern). I can say the Wendover coil primary and secondary info was excellent. Both were about 43 kHz. The tertiary interestingly was closer to 100 kHz. Something is wrong with the 3rd coil setup (either very wrong or something is seriously missing. i.e., force driven? because it is "absolutely not" resonate to the primary and secondary - even with huge toploads.).

I agree regarding Tesla's 3rd coil, including Golka's rendition. When these coils are placed center to the sec & pri systems, there is absolutely mutual induction occurring. This is very different than the typical maggy built the past several years. Even my maggy built a year or so ago was a better representation of Tesla's coil than the typical maggy (3rd coil centered to the driver).

Golka's pri to sec coupling was about 0.33. I didn't model the tertiary coupling, but I may do that following this email (unless my honey forces the BBQ cleaning soon - a mans sixth sense is pulsing!). I must say thanks to Mike for posting Golka's data. There is absolutely no doubt Golka had a very interesting coil to play with, and I care very little for anyone who says otherwise. Golka built a massive coil which was certainly of an "older vintage style" coil than anything we have today. Not even Wysock's coils or many of the other "professionals" have pulled off anything like this. While modeling Golka's Wendover coil, I developed a whole new appreciation for what he did. I've heard some interesting "comments" through my time on the TCML regarding Golka. Although I can understand why those negative comments may have had some credibility, I cannot discount Golka's ability to build a coil in the "likeness" of Tesla and to a grand scale. My hat is off to Golka!

Take care,
Bart

Tesla list wrote:

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 than a magnifier...

Perhaps the program needs secondary to third coil coupling added...
Or, just try modeling as a standard two coil system... I can easily run the primary to third coil coupling...

K = 0.053

That may we be enough to supply more energy to the third coil than the wire...

Hmmmmm...

Cheers,

        Terry


At 10:14 AM 6/26/2005, you wrote:

Hi Terry,

I'm curious about your input parameters. I was under the assumption you were modeling the geometry of the Wendover coil data which Mike provided, but it obviously is not. Did you get inputs elsewhere for Tesla's CS Coil?

Thanks,
Bart

Tesla list wrote:

Original poster: Terry Fritz <teslalist@xxxxxxxxxxxxxxxxxxxxxxx>

Hi All,

I ran the parameters for Tesla's Colorado Springs coil through MandK3.1 and E-Tesla6 to get better numbers to feed ScanTesla-TRSSTC...

All the horrific details are here:

http://drsstc.com/~terrell/modeling/Teslas-CScoil.ZIP

Losses went way down and the capacitance of his secondary coil went way up... But overall, things did not change much. The heavy ring in the secondary coil went away now. The secondary coil seems to be able to isolate itself from the primary and tertiary tuned circuits to ring-on for a long time. But I doubt if Tesla coil was tuned as well as the computer can tune things ;-))

http://hot-streamer.com/temp/TCSCoilVoltages-02.gif

Tesla coil probably never made over 300,000 Volts!!! The higher BPS and short burst time along with 50+++kW input pushed the streamers out even though the efficiency was only about 11.6%!! Talk about throwing a few tens of kilowatts at it to make up for that ;-))
Hard to say where the LERT was... Primary inductance is hard to say for one turn... I bet a lot of loss went into the Earth under the primary/secondary coil... The very short burst time would have loved high BPS rates...

I bet he pushed the BPS rate "way up" to overcome the coils energy losses... That would have been his perfect path for longer streamer given what he had going there... He had high losses but lots of power and a short powerful burst... His streamer would have increased in length as a direct function of BPS until something like the power plant blew up :o)) I am thinking his longer streamer must have been help by short LERT cases...

Hard to say how "true" any of this is... But it represents "quadrillions" of calculations from the best programs out there this night...

-------------------------
ScanTesla  V-TRSSTC-7.30  June 23, 2005  Terry Fritz
Goal =        9.137594838  Maxium Load Energy
Goal Time = 1.000000e-003
Model Number = 56
Goal Number = 56

Cprimary = 1.530000e-007
Lprimary = 1.775000e-005
Rprimary = 1.500000e+000
Coupling = 0.563300
Csecondary = 1.500000e-009
Lsecondary = 9.622000e-003
Rsecondary = 6.100000e+000
Ltertiary = 1.591100e-002
Ctertiary = 1.100000e-010
Rtertiary = 9.400000e+000
Cload = 0.300000e-010
Rload = 2.200000e+005
BPS = 600.000000
Dwell Time = 0.300000e-003

Ilprimay Maximum = -3091.658812
ICprimary RMS = 165.045753
VCprimary Maximum = 31978.499678
VCsecondary Maximum = -106168.996121
VCtertiary Maximum = -314947.316931
Coil Power = 47001.600000   Primary Bang Energy = 78.336000
Load Power = 5482.556903   Load Bang Energy = 9.137595
Primary F0 = 96577.339544
Load Energy Rise Time (Sec) = 2.944000e-004
Models Tested = 201
-----------------------------

Cheers,

    Terry