If you (or anyone) uses fluorescents in a show, they should be inside the
clear plastic sleeves that Ace Hdwe and others sell for the purpose, and the
ends securely taped. They you can hit them on a concrete wall the there
will be no broken glass hazard.
With 8 foot tubes, we get them to light up to 25 feet away.
---Carl
-----Original Message-----
From: Dave Halliday
Sent: Thursday, June 05, 2014 9:34 PM
To: 'Tesla Coil Mailing List'
Subject: Re: [TCML] wireless tuned lamps
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.
>> _______________________________________________
>>
>
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxx
> http://www.pupman.com/mailman/listinfo/tesla
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