Re: Hv probe for lifter project (fwd)

[<sroys@xxxxxxxxxxxxxxxxx>]

---------- Forwarded message ----------
Date: Fri, 22 Oct 2004 21:38:48 -0500
From: Dr. Resonance <resonance@xxxxxxxxxx>
To: High Voltage list <hvlist@xxxxxxxxxx>
Subject: Re: Hv probe for lifter project (fwd)


Your HV probe will be very inaccurate.  As metal ions migrate from the
terminals into the water the resistance value will change over a period of
days or weeks.  It will not remain constant at all.

Best bet is some cheap HV resistors (Mouser) that you can series up.

Dr. Resonance

>
> I was going to make it way to big, then hook up a 12KV nst to it, and
> just keep taking water (or some liquid) out till it said 120 volts.
> But, i decided i am just going to buy one off ebay.
>
> -Adam
>
>
> On Fri, 22 Oct 2004 09:51:47 -0600 (MDT), High Voltage list
> <hvlist@xxxxxxxxxx> wrote:
> > Original poster: <sroys@xxxxxxxxxxxxxxxxx>
> >
> > ---------- Forwarded message ----------
> > Date: Fri, 22 Oct 2004 09:01:14 -0600
> > From: Gomez Addams <gomez@xxxxxxxxxxxx>
> > To: High Voltage list <hvlist@xxxxxxxxxx>
> > Subject: Re: Hv probe for lifter project (fwd)
> >
> >
> >
> >
> > On Oct 21, 2004, at 10:46 PM, High Voltage list wrote:
> >
> > > Original poster: <sroys@xxxxxxxxxxxxxxxxx>
> > >
> > >
> > >
> > > ---------- Forwarded message ----------
> > > Date: Thu, 21 Oct 2004 19:45:59 -0500
> > > From: Adam Britt <Beans45601@xxxxxxxxx>
> > > To: hvlist@xxxxxxxxxx
> > > Subject: Hv probe for lifter project
> > >
> > > In regards to my last post about my lifter project, i am getting a
> > > large flyback from Dr. Res and a tripler, so i am set for power
> > > supplies. But, Now i am going to need a HV probe. I have a 10' x.5"
> > > piece of PVC pipe around my house, and if i put a bolt in one end, and
> > > one in the other, and fill it with water, will that be enough
> > > resistance for a HV probe? If not, what other liquid (that is commonly
> > > available) could i use to give me enough resistance?
> >
> >  Never mind how you brew up your own resistor - regardless of what you
> > use
> > for a home-brew resistor, how would you calibrate it?  Do you have a
> > megger
> > or ohm-meter with reasonable accuracy in that regime of resistance?
> >
> >
>
>
>