Re: [EE] Re: E-Field viewer

This seems to be the thing:

https://www.youtube.com/watch?v=E25aX0w7C7I

On Wed, 1 Jul 2026 at 09:17, [email protected] <[email protected]>
wrote:

> I would love to see a video of this E-Field device in action when it is up
> and running.
>
> Cheers,
> Martin.
>
> On Wednesday, 1 July 2026 at 18:09, Sean Breheny <[email protected]>
> wrote:
>
> > 400kHz at 10kV will ionize and illuminate the gas inside the bulbs
> without
> > any electrodes. You could probably just have an array of sealed tubes
> with
> > the appropriate mix of gas at the right pressure inside. Your idea to
> just
> > clip the wires may be a close enough approximation of this.
> >
> > On Mon, Jun 29, 2026 at 2:24AM David VanHorn <[email protected]>
> wrote:
> >
> > > Picture a grid of 10x10 NE2 lamps, mounted in holes in a wooden board.
> > >
> > > What I'm after is a good representation of the E-Field around a device.
> > > Roughly 400 kHz and 10kV..60kV
> > >
> > > I am worrying over what would distort the field the least.
> > > All leads clipped and just little gas tubes with metal bits inside?
> > > All leads connected and grounded with minimal wire?
> > > All leads connected to strips of copper tape which is grounded?
> > >
> > > I think the first one is the least distortion to the field, and least
> > > sensitive.  Not sure which way to order the other two.
> > >
> > > Opinions?