Re: Secondary winding frustration

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: Bart Anderson <classi6-at-classictesla-dot-com> 

Sorry All,
Replying to my own here. I see Dr. R. has told tale as it really is.

Take care,
Bart

Tesla list wrote:

>Original poster: Bart Anderson <classi6-at-classictesla-dot-com>
>Maybe they could:
>If they charged a large 3uF cap up for single shot mode (that may take 
>some time) and used a very large terminal. I just modeled the coil with an 
>18"x40" toroid.
>
>15.77 [kHz] = Secondary Resonant Frequency
>175 = Turns Per inch
>0.00322 [inch] = Space Between Turns (edge to edge)
>24455.71 [ohms] = DC Resistance
>185714 [ohms] = Reactance at Resonance
>1874.275 [mH] = Les-Effective Series Inductance
>1890.326 [mH] = Lee-Equivalent Energy Inductance
>1872.477 [mH] = Ldc-Low Frequency Inductance
>54.343 [pF] = Ces-Effective Shunt Capacitance
>53.321 [pF] = Cee-Equivalent Energy Capacitance
>75.338 [pF] = Cdc-Low Frequency Capacitance
>20.692 [mils] = Skin Depth <---------------- note, very lossy for 42g wire
>21210 [volts] = Charging Voltage
>21198 [volts] = Arc Voltage
>674.8 [joules] = Primary Cap Energy
>6308.9 [amps] = Primary Instantaneous Current < ---- Ouch!
>99.9 [%] = Percent Cap Charged at Gap Conduction
>1 [BPS] = Breaks Per Second
>674 [joules] = Effective Cap Energy <---- Ouch!
>5028017 [volts] = Terminal Voltage <---- There you go!
>63.7 [inch] = Spark Length
>
>But, what type of primary, cap, and sparkgap must be built to handle this 
>kind of power? I guess the real question is, what was left of the coil 
>following discharge?
>
>Take care,
>Bart
>
>Tesla list wrote:
>
>>Original poster: "RIAA/MPAA's Worst Nightmare" <mike.marcum-at-zoomtown-dot-com>
>>I read somewhere a few years ago on the TCBA newsletter (I think) about a
>>team of coilers (pro physisicts? can't remember) that made an 8"x40"
>>secondary with ~7000 turns of 42 awg. They managed still to get 5 million
>>volts out of it with if I remember right a 15/120 supply. I take it that
>>higher voltage doesn't necessarily mean longer spark, but am I overlooking
>>something else? I don't think they mentioned the output length, but 5MV is
>>hard to picture short.
>>  What if I keep the primary inductance high and add a bigger topload? This
>>was my original idea, but was thinking that adding a breakout point reduces
>>the effective capacitance, or does it do the equivelent of making it a big
>>leakier capacitor? Can't test this without my scope and kinda chicken to try
>>since it's not a robust tube unit.
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