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Re: new secondary problems
From: D.C. Cox[SMTP:DR.RESONANCE-at-next-wave-dot-net]
Sent: Saturday, November 22, 1997 2:21 PM
To: Tesla List
Subject: Re: new secondary problems
to: Tesla List
The static shock is quite common especially with enamel magnet wound
secondaries. Before removing the sec just hold a small finishing nail in
your hand and run it down the coil about 1 inch away from the sec. That
will bleed off all the electrostatic charge. A car key also works -- just
don't drag it on the sec coil and mar your insulation.
The definition of a capacitor is a plate -- dielectric -- plate. In this
case the wire is the plate, the insulation is the dielectric, and the next
turn of wire is the other plate. A considerable amount of charge is stored
in the insulation of these hundreds of small capacitors which can zap you
if you are not ready for it. As John points out your hand is also a
conductor (70% water) which forms another plate in the equation.
DR.RESONANCE-at-next-wave-dot-net
----------
> From: Tesla List <tesla-at-pupman-dot-com>
> To: 'Tesla List' <tesla-at-poodle.pupman-dot-com>
> Subject: Re: new secondary problems
> Date: Friday, November 21, 1997 5:01 PM
>
>
> From: John H. Couture[SMTP:couturejh-at-worldnet.att-dot-net]
> Sent: Friday, November 21, 1997 12:43 AM
> To: Tesla List
> Subject: Re: new secondary problems
>
> At 05:13 AM 11/20/97 +0000, you wrote:
> >
> >From: Chip Atkinson[SMTP:chip-at-XiG-dot-com]
> >Reply To: Chip Atkinson
> >Sent: Wednesday, November 19, 1997 9:05 AM
> >To: Tesla List
> >Subject: Re: new secondary problems
> >
>
--------------------------------------------------------------------------
>
> Chip -
>
> I think you may be right but if what you say is correct why does the
> Medhurst equation for coil self capacitance ignore the wire and
insulation
> and only use the radius and coil length?
>
> John Couture
>
>
----------------------------------------------------------------------------
> -----
>
> >Welcome to coiling! :-)
> >
> >Here's my theory: The insulation of the wire gets charged up during
> >operation. The wire is one plate of a capacitor, the insulation is the
> >dielectric, and, unfortunately, you are the other plate. When you touch
> >the secondary, you collect the static charge on the dielectric, just
like
> >the plate of a capacitory.
> >
> >I believe that the large DC component in TC operation that Richard Hull
> >explored is what charges the thing. It's quite a pleasure to grab a
> >charged secondary with both hands and get a jolt through the chest.
> >Ahh... makes you appreciate life. :-)
> >
> >So, how do you fix the problem? I fix it by wiping the coil form with a
> >flexible grounded wire. You don't have to wipe every square millimeter,
> >just a cursory wiping seems to work fine for me. You can experiment and
> >find how much/little wiping it needs.
> >
> >Chip
> >
> >On Tue, 18 Nov 1997, Tesla List wrote:
> >
> >>
> >> From: kevin[SMTP:wawa-at-spectra-dot-net]
> >> Sent: Tuesday, November 18, 1997 3:34 PM
> >> To: tesla-at-pupman-dot-com
> >> Subject: new secondary problems
> >>
> >> i just wound a new 6" secondary. i tested it out and it worked great.
> >> then i wanted to take everything apart and bring it inside. well, when
i
> >> touched the upper half of the secondary i got shocked. i keep
touching
> >> it and i keep getting shocked, it isn't even connected to the rest of
my
> >> coil anymore, it is in my room. why do i keep getting shocked?
> >>
> >>
> >>
> >
> >---------------------------------------------------------------
> >Chip Atkinson; Xi Graphics 1801 Broadway, Denver CO 80202
> >(303)298-7478voice (303)298-1406fax (800)946-7433sales
> >---------------------------------------------------------------
> >
> >
> >
> >
> >
>
>