My only thought is that thin glass tubes are not that strong for lateral
stress and if you put a big mass at the end of a long one, someone waving it
around might cause it to break.
The fracture will be at the point of greatest stress - IE: where their hands
are holding it as they wave it around. I doubt that plastic wrap would stop
shards of glass from causing a wound.
And they will wave it around despite what you tell them.
I would 'guesstimate' the weight of the resonant circuit and put the same
mass on the end of a tube and try it yourself (attired with requisite safety
apparel).
Besides, where is your voltage gradient? Your resonant circuit will have two
poles. Are you planning to run a shielded line down the tube and connect it
to the other end of the tube?
Dave
> -----Original Message-----
> From: tesla-bounces@xxxxxxxxxx
> [mailto:tesla-bounces@xxxxxxxxxx] On Behalf Of David Boyle
> Sent: Thursday, June 05, 2014 11:16
> To: tesla@xxxxxxxxxx
> Subject: Re: [TCML] wireless tuned lamps
>
> I'll be sure to wrap those tubes so they are mechanically sound.
>
> However the idea I need advice on is taking a couple hundred feet of
> copper magnet wire like the kind you wind on a secondary, and
> coiling it
> up onto a form that sits at one end of a fluorescent tube.
> Add a tuning
> capacitor in parallel to make a tank circuit and using that as an
> antenna to extend the range of the wireless light effect. It's like a
> crystal radio circuit but it is there to only receive power and no
> signal. The winding and capacitor would be visible and part
> of the cool
> retro look.
>
> Any thoughts on that?
>
>
>
> On 14-06-05 11:50 AM, Terry L wrote:
> > Hi Dave,
> >
> > Not sure if your receiver idea is practical. However, I do suggest
> > that you wrap the hand held fluorescent tubes in clear plastic food
> > wrap. This way if they are accidentally dropped the breakage may be
> > contained. I do this at Burning Man shows. Just my opinion.
> >
> > Terry Leonard
> >
> > On 6/4/2014 7:46 AM, David Boyle wrote:
> >> I'd like to make a bunch of 3 foot fluorescent tubes for
> my upcoming
> >> high voltage show at the Ontario Science Center. The idea
> is to hand out
> >> 6 or 7 of these into the audience then turn on the coil
> with just a very
> >> small amount of current from the main variac. So without
> any visible
> >> plasma discharge from the toroid, the lamps light up in
> the crowd and
> >> boosts their anticipation.
> >>
> >> I'd like to extend the range of these lamps and I thought
> of putting a
> >> tuned receiver onto their ends.
> >> _______________________________________________
> >>
> >
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