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Re: Don't Try This

Subject: 
        Re: Don't Try This
  Date: 
        Sun, 13 Apr 1997 13:03:00 -0600
  From: 
        "R. FitzSimmons" <jrfitz-at-diac-dot-com>
    To: 
        "Tesla List" <tesla-at-pupman-dot-com>


Gary,
        Dr.Resonance is correct. It sounds as
if you tried to use a coil power supply to run
the Cockcroft-Walton multiplier. In my expierience,
the multiplier is best suited for negative ion generation
and expierimentation. Many effects of a coil still apply,
yet there are other expiriments, such as charging a body
remotly when used in a 'gun' configuration. If you'd like
schematics or more info, mail me at <jrfitz-at-diac-dot-com>.

Mr. FitzSimmons
jrfitz-at-diac-dot-com
http://www.diac-dot-com/~jrfitz {Still under construction}
----------
> From: Tesla List <tesla-at-pupman-dot-com>
> To: tesla-at-poodle.pupman-dot-com
> Subject: Re: Don't Try This
> Date: Thursday, April 10, 1997 9:31 AM
> 
> Subject: 
>         Re: Don't Try This
>   Date: 
>         Tue, 8 Apr 1997 04:49:35 -0700
>   From: 
>         "DR.RESONANCE" <DR.RESONANCE-at-next-wave-dot-net>
>     To: 
>         "Tesla List" <tesla-at-poodle.pupman-dot-com>
> 
> 
> Gary:
> 
> The device you have created is not a Tesla coil.  It is called a
> Cockraft-Walton voltage multiplier.  It was first used to develop 600 KV
> back in 1939 to achieve the first atomic transmutation of the element
> lithium.  It is similar to a Marx generator but different in a few
> points. 
> It can provide a continuous and well regulated output, and it does not
> use
> sparkgaps as switches -- the diodes act as high speed switches to
> connect
> the caps in series.
> 
> It was developed by a Mr. Cockraft and Mr. Walton and named in their
> honor.
> 
> If you repair your unit I suggest wiring a 500K 20 watt resistor in
> series
> with the output.  Also used another dampening device such as a 500
> microHenry inductor -- also in series with the output.  That will keep
> your
> diodes from frying in the event of any short circuit.
> 
> Good luck and be careful -- charged HV caps are killers.  Even when
> discharged end to end the center caps in the group will still retain
> enough
> charge to zap you --- I also discovered this the hard way in my younger
> days.   Yes --- coilin' is safer.
> 
> DR.RESONANCE-at-next-wave-dot-net
> 
> 
> ----------
> > From: Tesla List <tesla-at-poodle.pupman-dot-com>
> > To: tesla-at-poodle.pupman-dot-com
> > Subject: Don't Try This
> > Date: Sunday,April 06,1997 5:54 PM
> > 
> > Subject: 
> >         Don't Try This
> >   Date: 
> >         Sun, 06 Apr 1997 12:54:02 -0700
> >   From: 
> >         Gary Weaver <gweaver-at-earthlink-dot-net>
> >     To: 
> >         tesla-at-pupman-dot-com
> > 
> > 
> > Today while going threw some old papers I found a Xerox copy of a Tesla
> > Coil 
> > that uses a voltage multiplyer instead of a neon transformer.  It uses
> > 10 
> > diodes and 10 capacitors.  The diodes are 1N4007 and the caps are .001
> > uf 
> > 1000 volts.  The circuit suggests using an old TV transformer about 800

> > volts for the voltage multiplyer circuit. The voltage multiplyer
> > discharges 
> > threw the spark gap across the LC circuit and the secondary coil output
> > is 
> > suppost to be 8" to 10". 
> > 
> > I decided to build it and try it.  If it works I will build the TC into
> > a 
> > nice little unit and put it on my desk at work. I looked threw my parts
> > and 
> > couldn't find any .001 uf 1000 volt capacitors to used in the voltage 
> > multipler circuit so I used 4700 MFD 200 volt capacitors.  I figured it
> > won't 
> > work with these caps but it will be fun to experement with anyway. I
put
> > a 
> > volt meter on the 1st of the 10 capacitors and a 200 ohm 20 watt
current 
> > limiting resistor in the 120 volt AC line.  I plugged it into the wall
> > and it 
> > took several minutes to come up to full charge.  Now I know this won't
> > work 
> > for a Tesla Coil.
> > 
> > I unplugged the wire.  I decided not to leave the capacitor bank
setting
> > on 
> > the work bench with a full charge.  I decided to discharge the
> > capacitors 
> > threw the 200 ohm 2 watt current limiting resistor connected on the
> > output. I 
> > checked the resistor with the multi meter and it checked about 200
ohms.
> > When 
> > I connected the resistor to the output it discharged all the capacitors
> > in a 
> > micro second.  BOOM...........WOW, what a discharge.  
> > 
> > The 200 ohms 2 watt resistor looks like a piece of charcoal. The
> > resistor is 
> > still there but it is fryed.  All the diodes are gone except for the
> > wires 
> > that use to be part of the diodes.  The end of the capacitors all have
> > burned 
> > spots from the diodes that exploded.
> > 
> > Gary Weaver
>