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Re: [TCML] JavaTc specs for my new resonator
You're absolutely right - now I remember -
The reason I got an f0 in the 50's of kHZ (don't have the JTC printout handout or I'd post it here) is because I used an "environmental" spec (ceiling/ground/walls) of a 100" cube. Clearly a bad idea for a setup that is ~90" tall. Once I increased the environmentals to a big number (1000") it very closely mimiced what I was seeing in terms of tuning, etc. when running outside, where is the only place I can set up the thing.
I have not measured f0 with a scope, but I may as well do that now. I've done this with other secondaries/toploads and JTC tends to be pretty durned close. So if the numbers I type here are off, it's due to faulty wetware in my skull, and not JTC.
I should say, that at this point, on my 7th or so coil, if JTC does not match my reality I know I have done something wrong.
Joe
On Feb 12, 2011, at 9:55 AM, Phil Tuck wrote:
> Joe,
> Nice looking beast. I am particularly interested in the toroid and I
> wondered how accurate JavaTc will prove to be with a toroid of that tubular
> design, have you actually measured the resonant freq with a scope etc. to
> see what you *actually* have? The bare secondary coil on its own would give
> 105.42 kHz and I wondered how much capacitance those tubular toroid's give,
> when compared to an equivalent sized conventional solid toroid.
> Looking at the measurements, you inputted it seems you have the equivalent
> of a 12 x 48 inch toroid with its centre line at 84.375 inches. With a
> conventional top load, this, along with your secondary, would give an
> overall freq of 65 kHz so according to JavaTc there is little difference, as
> it gives you 66.14 kHz for the tubular one.
>
> The specs I used are:
>
> ----------------------------------------------------
> Secondary Coil Inputs:
> ----------------------------------------------------
> 6.375 = Radius 1
> 6.375 = Radius 2
> 26.625 = Height 1
> 82.375 = Height 2
> 1287 = Turns
> 18 = Wire Awg
>
> ----------------------------------------------------
> Top Load Inputs:
> ----------------------------------------------------
> Toroid #1: minor=12, major=48, height=84.375
>
> ----------------------------------------------------
> Secondary Outputs:
> ----------------------------------------------------
> 65.18 kHz = Secondary Resonant Frequency
> 90 deg° = Angle of Secondary
> 55.75 inch = Length of Winding
> 23.1 inch = Turns Per Unit
> 0.00302 inch = Space Between Turns (edge to edge)
> 4295.9 ft = Length of Wire
> 4.37:1 = H/D Aspect Ratio
> 27.2056 Ohms = DC Resistance
> 49399 Ohms = Reactance at Resonance
> 21.12 lbs = Weight of Wire
> 120.62 mH = Les-Effective Series Inductance
> 117.257 mH = Lee-Equivalent Energy Inductance
> 110.813 mH = Ldc-Low Frequency Inductance
> 49.43 pF = Ces-Effective Shunt Capacitance
> 50.848 pF = Cee-Equivalent Energy Capacitance
> 64.993 pF = Cdc-Low Frequency Capacitance
> 11.22 mils = Skin Depth
> 42.195 pF = Topload Effective Capacitance
> 105.3917 Ohms = Effective AC Resistance
> 469 = Q
>
>
> Regards
> Phil
>
>
> -----Original Message-----
> From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On Behalf
> Of Joe Mastroianni
> Sent: 12 February 2011 16:30
> To: Tesla Coil Mailing List
> Subject: [TCML] JavaTC specs for my new resonator
>
>
> Here are the JTC specs for the resonator in the pic, and the power supply
> (back in the garage).
>
> <http://www.flickr.com/photos/iceowl/5423115443/>
>
> Joe
>
>
> *************************
>
>
> J A V A T C version 12.5 - CONSOLIDATED OUTPUT Sat Feb 12 08:27:41 2011
>
> Units = Inches
> Ambient Temp = 68°F
>
> ----------------------------------------------------
> Surrounding Inputs:
> ----------------------------------------------------
> 10000 = Ground Plane Radius
> 10000 = Wall Radius
> 10000 = Ceiling Height
>
> ----------------------------------------------------
> Secondary Coil Inputs:
> ----------------------------------------------------
> Current Profile = G.PROFILE_LOADED
> 6.375 = Radius 1
> 6.375 = Radius 2
> 26.625 = Height 1
> 82.375 = Height 2
> 1287 = Turns
> 18 = Wire Awg
>
> ----------------------------------------------------
> Primary Coil Inputs:
> ----------------------------------------------------
> Ribbon Primary Conductor
> 8.25 = Radius 1
> 11.004 = Radius 2
> 24 = Height 1
> 24 = Height 2
> 9.3691 = Turns
> 0 = Wire Diameter
> 1.5 = Ribbon Width
> 0.044 = Ribbon Thickness
> 0.09 = Primary Cap (uF)
> 24 = Total Lead Length
> 0.2 = Lead Diameter
>
> ----------------------------------------------------
> Top Load Inputs:
> ----------------------------------------------------
> Disc #1: inside=47.25, outside=48, height=84.375, topload Disc #2:
> inside=46.75, outside=47, height=86.375, topload Disc #3: inside=46.75,
> outside=47, height=82.375, topload Disc #4: inside=44.75, outside=45,
> height=80.375, topload Disc #5: inside=44.75, outside=45, height=88.375,
> topload Disc #6: inside=41.75, outside=42, height=90.375, topload Disc #7:
> inside=41.75, outside=42, height=78.375, topload
>
> ----------------------------------------------------
> Secondary Outputs:
> ----------------------------------------------------
> 66.14 kHz = Secondary Resonant Frequency
> 90 deg° = Angle of Secondary
> 55.75 inch = Length of Winding
> 23.1 inch = Turns Per Unit
> 0.00302 inch = Space Between Turns (edge to edge)
> 4295.9 ft = Length of Wire
> 4.37:1 = H/D Aspect Ratio
> 27.2056 Ohms = DC Resistance
> 48290 Ohms = Reactance at Resonance
> 21.12 lbs = Weight of Wire
> 116.202 mH = Les-Effective Series Inductance
> 115.827 mH = Lee-Equivalent Energy Inductance
> 110.813 mH = Ldc-Low Frequency Inductance
> 49.831 pF = Ces-Effective Shunt Capacitance
> 49.992 pF = Cee-Equivalent Energy Capacitance
> 68.27 pF = Cdc-Low Frequency Capacitance
> 11.14 mils = Skin Depth
> 38.56 pF = Topload Effective Capacitance
> 106.1615 Ohms = Effective AC Resistance
> 455 = Q
>
> ----------------------------------------------------
> Primary Outputs:
> ----------------------------------------------------
> 66.14 kHz = Primary Resonant Frequency
> 0 % = Percent Detuned
> 0 deg° = Angle of Primary
> 47.23 ft = Length of Wire
> 5.83 mOhms = DC Resistance
> 0.25 inch = Average spacing between turns (edge to edge)
> 3.206 inch = Proximity between coils
> 1.99 inch = Recommended minimum proximity between coils
> 64.999 µH = Ldc-Low Frequency Inductance
> 0.08989 µF = Cap size needed with Primary L (reference)
> 0.662 µH = Lead Length Inductance
> 340.042 µH = Lm-Mutual Inductance
> 0.127 k = Coupling Coefficient
> 0.155 k = Recommended Coupling Coefficient
> 7.87 = Number of half cycles for energy transfer at K
> 58.92 µs = Time for total energy transfer (ideal quench time)
>
> ----------------------------------------------------
> Transformer Inputs:
> ----------------------------------------------------
> 220 [volts] = Transformer Rated Input Voltage
> 14400 [volts] = Transformer Rated Output Voltage
> 350 [mA] = Transformer Rated Output Current
> 60 [Hz] = Mains Frequency
> 150 [volts] = Transformer Applied Voltage
> 0 [amps] = Transformer Ballast Current
> 0 [ohms] = Measured Primary Resistance
> 0 [ohms] = Measured Secondary Resistance
>
> ----------------------------------------------------
> Transformer Outputs:
> ----------------------------------------------------
> 5040 [volt*amps] = Rated Transformer VA
> 41143 [ohms] = Transformer Impedence
> 9818.2 [rms volts] = Effective Output Voltage
> 15.62 [rms amps] = Effective Transformer Primary Current
> 0.2386 [rms amps] = Effective Transformer Secondary Current
> 2343 [volt*amps] = Effective Input VA
> 0.0645 [uF] = Resonant Cap Size
> 0.0967 [uF] = Static gap LTR Cap Size
> 0.1681 [uF] = SRSG LTR Cap Size
> 276 [uF] = Power Factor Cap Size
> 13885 [peak volts] = Voltage Across Cap
> 34713 [peak volts] = Recommended Cap Voltage Rating
> 8.68 [joules] = Primary Cap Energy
> 522 [peak amps] = Primary Instantaneous Current
> 74.1 [inch] = Spark Length (JF equation using Resonance Research Corp.
> factors)
> 12.2 [peak amps] = Sec Base Current
>
> ----------------------------------------------------
> Rotary Spark Gap Inputs:
> ----------------------------------------------------
> 1 = Number of Stationary Gaps
> 8 = Number of Rotating Electrodes
> 2400 [rpm] = Disc RPM
> 0.25 = Rotating Electrode Diameter
> 0.25 = Stationary Electrode Diameter
> 9.125 = Rotating Path Diameter
>
> ----------------------------------------------------
> Rotary Spark Gap Outputs:
> ----------------------------------------------------
> 8 = Presentations Per Revolution
> 320 [BPS] = Breaks Per Second
> 65.2 [mph] = Rotational Speed
> 3.13 [ms] = RSG Firing Rate
> 18.514 [ms] = Time for Capacitor to Fully Charge
> 0.84 = Time Constant at Gap Conduction
> 436.04 [µs] = Electrode Mechanical Dwell Time
> 57 [%] = Percent Cp Charged When Gap Fires
> 7914 [peak volts] = Effective Cap Voltage
> 2.82 [joules] = Effective Cap Energy
> 335802 [peak volts] = Terminal Voltage
> 902 [power] = Energy Across Gap
> 73.7 [inch] = RSG Spark Length (using energy equation)
>
> ----------------------------------------------------
> Static Spark Gap Inputs:
> ----------------------------------------------------
> 0 = Number of Electrodes
> 0 [inch] = Electrode Diameter
> 0 [inch] = Total Gap Spacing
>
> ----------------------------------------------------
> Static Spark Gap Outputs:
> ----------------------------------------------------
> 0 [inch] = Gap Spacing Between Each Electrode
> 0 [peak volts] = Charging Voltage
> 0 [peak volts] = Arc Voltage
> 0 [volts] = Voltage Gradient at Electrode
> 0 [volts/inch] = Arc Voltage per unit
> 0 [%] = Percent Cp Charged When Gap Fires
> 0 [ms] = Time To Arc Voltage
> 0 [BPS] = Breaks Per Second
> 0 [joules] = Effective Cap Energy
> 0 [peak volts] = Terminal Voltage
> 0 [power] = Energy Across Gap
> 0 [inch] = Static Gap Spark Length (using energy
> equation)_______________________________________________
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