Re: RE>Re: UK coilers ? + stuff (fwd)

To: tesla-at-pupman-dot-com
Subject: Re: RE>Re: UK coilers ? + stuff (fwd)
From: Tesla List <mod1-at-pupman-dot-com>
Date: Tue, 4 Aug 1998 21:36:17 -0600 (MDT)
Approved: mod1-at-pupman-dot-com


---------- Forwarded message ----------
Date: Tue, 4 Aug 1998 18:04:11 +0100
From: "chris.swinson" <chris.swinson-at-zetnet.co.uk>
To: Tesla List <tesla-at-pupman-dot-com>
Subject: Re: RE>Re: UK coilers ? + stuff (fwd)




>Chris & Al,
>
>I agree with  Al's good comments, except,
>
>I disagree regarding the uA output current of a TC, seems he was talking
>average where it the peak values that need to be considered (or perhaps
>he is referring to overall corona current with no concentrated spark ?)
>Sparks and corona represent impulse events necessitating peak terminology.
>Wire ratings are for heating values (cross section area).
>Surface area & skin affect at relevant tesla frequencies determine peak
>current  capability. The pulse repetitiion rate never gets high enough to
>become a wire heating restriction.
>

The way I see it, Is the corona is the RMS value, and when there is a spark,
thats the high current comming into play.  More current being a brigther
spark.


>In my battery powered DC TC, 12v .04A to  5kVDC,  .1uF, .125" ~4turn pri,
> 6.25"x20" sec #24 ~20mHy,  8"x20" toroid, 8" to 10" sparks:
>

Have you a web ste where I can see you DC coil ?  I'd like to try one of
them out and compair it to my normal sparkgap coil.



Chris.swinson-at-zetnet.co.uk

Thanks all :-)


>Ipri ~ 600 A pk measured with a Tektronix current probe (220kHz).
>
>Isec ~22 A pk measured spark return line current (~2 to 20mHz)
>
>Dale  Redondo Beach, Calif
>
>------------------------------
>Date: 8/1/98 8:45 PM
>To: Hall, Dale
>From: List, Tesla
>
>Date: Sat, 1 Aug 1998 17:04:53 EDT
>From: Alfred A Skrocki <alfred.skrocki.sr-at-juno-dot-com>
>Subject: Re: UK coilers ? + stuff (fwd)
>
>On Fri, 31 Jul 1998 18:37:50 +0100 Chris Swinson
><chris.swinson-at-zetnet.co.uk> wrote;
>
>snip.....
>>what's the output current of a coil ?  I know the capacitor may well
>>give a very small peek of up to 1000's of amps, But the current rating
>of the
>>wire in my secondary is about 140 ma, Does this mean I can only draw
>>140ma or is there something else to it all.
>
>Typically the current output of a coil like yours is in the micro-amp
>range.
>The current out put is in accordance with the conservation of energy
>rule. ie the power input is the same as the power output (minus losses of
>course) so since the voltage output is soo much higher than the voltage
>input the output current must be accordingly much smaller.
>
>>snip
>                               Alfred A. Skrocki
>                          Alfred.Skrocki.Sr-at-JUNO-dot-com
>
>
>
>