On Fri, May 18, 2012 at 10:19 PM, William Beaty <[email protected]> wrote:
> On Fri, 18 May 2012, David Jonsson wrote: > > What is happening when you turn off the LEDs? Where is that described? It >> looks like a possible explanation. >> > > Three-dollar e-field detectors, see the project page: > > > http://www.amasci.com/emotor/**chargdet.html<http://www.amasci.com/emotor/chargdet.html> > > > But if streetlights respond to DC fields, then nearby cars and distant > thunderstorms would have enormous effect. Thanks. I will try to build one. Will this transistor do? http://www.newark.com/nte-electronics/nte451/transistor-jfet-n-channel-4ma-i/dp/29C4598 An idea is to build an array of these and measure with a cheap microcontroller. David
