This ladder WILL KILL you if you touch it!

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dighn

Lifer
Aug 12, 2001
22,820
4
81
Originally posted by: Eli
Originally posted by: LordMorpheus
the purpose of a tesla coil is wireless power transmission. This insane dude named Tesla (of course) invented them some years ago, and is the subject of many urban legends (the death ray, his coil drawing so much power that the local powerplant lit on fire, etc. etc.).

The amazing arc lighting you see is kind of a side effect, and probably the reason it never took off. If you build a coil, you can hold a flourescent buld (not sure about normal incandescent) nearby and it will light up. If you have the coil set right (as in not suber powerful) there will be NO arc lighting going on, but the bulb will 'magically' light up. It is really an awesome sight, some buddies of mine built on recently and I saw it in action . . . turn the lights out, turn the coil on . . You can wave the tube around like a lightsaber and it will be the ONLY source of light in the room . . . except for the flourexcent bulbs in the ceilling that were glowing dimly . . . hahaha.

But, the idea never took off because of what you see in those picture. Imagine having one of those attached to ever powerline pole . . . . . .
No, it will not light a normal incandescent bulb.

you probably could if you use a properly tuned receiver (provided that the transmitter is strong enough in the first place).
 

sharkeeper

Lifer
Jan 13, 2001
10,886
2
0

Will a Furby suffice?! :p

It's possible to tune a coil to give off very little visible corona, however what fun is that? :p

Anything that touches the toroid (top) that has a corner or edge of any kind will start a nice stream.

Incandescent lights WILL glow brightly if you bond both the rim and solder to a long, stout wire and place that in the path. Of course a glowing filament doesn't look nearly as exciting as arcs ten feet long!

Unfortunately, expensive audio gear and computers do NOT mix with Tesla Coils. Kind of like fast cars and wives...

Cheers!
 

Blackroot

Senior member
Oct 4, 2003
529
0
0
Originally posted by: shuttleteam
tesla coils are cooler

They are, more efficient, and considerably dangerous some distance away!

Consider at the same power level. We were limited to 20 kVA (MAX) at the residential setting. Any more would trip the main breaker. Didn't have the balls to bug off the wires at the peckerhead (this is highly illegal anyways since all the power used does NOT go through the meter!)

Simple Coil running 15+ kVA

Twin Sisters

People that are brave enough to watch cannot have any metal objects on their person whatsoever, or they can catch on fire!

Cheers!


thats some cool stuff there, i wonder what would happen if you tried to run inbetween those, lol

 

PanzerIV

Diamond Member
Dec 19, 2002
6,875
1
0
Hmmm I can see it now..."You will talk Mr. Bond..." Looks like some contraption in a 007 flick ;)
 

Howard

Lifer
Oct 14, 1999
47,982
11
81
Originally posted by: shuttleteam

Will a Furby suffice?! :p

It's possible to tune a coil to give off very little visible corona, however what fun is that? :p

Anything that touches the toroid (top) that has a corner or edge of any kind will start a nice stream.

Incandescent lights WILL glow brightly if you bond both the rim and solder to a long, stout wire and place that in the path. Of course a glowing filament doesn't look nearly as exciting as arcs ten feet long!

Unfortunately, expensive audio gear and computers do NOT mix with Tesla Coils. Kind of like fast cars and wives...

Cheers!
Oh... My... God...
 

Eli

Super Moderator | Elite Member
Oct 9, 1999
50,419
8
81
Originally posted by: dighn
Originally posted by: Eli
Originally posted by: LordMorpheus
the purpose of a tesla coil is wireless power transmission. This insane dude named Tesla (of course) invented them some years ago, and is the subject of many urban legends (the death ray, his coil drawing so much power that the local powerplant lit on fire, etc. etc.).

The amazing arc lighting you see is kind of a side effect, and probably the reason it never took off. If you build a coil, you can hold a flourescent buld (not sure about normal incandescent) nearby and it will light up. If you have the coil set right (as in not suber powerful) there will be NO arc lighting going on, but the bulb will 'magically' light up. It is really an awesome sight, some buddies of mine built on recently and I saw it in action . . . turn the lights out, turn the coil on . . You can wave the tube around like a lightsaber and it will be the ONLY source of light in the room . . . except for the flourexcent bulbs in the ceilling that were glowing dimly . . . hahaha.

But, the idea never took off because of what you see in those picture. Imagine having one of those attached to ever powerline pole . . . . . .
No, it will not light a normal incandescent bulb.

you probably could if you use a properly tuned receiver (provided that the transmitter is strong enough in the first place).
Nope.

In an incandescent bulb, the atoms are excited by heat, causing the electrons to give off photons.

In a fluorescent bulb, the gasses inside are excited by free electrons and give off photons. The reason the lamp glows when it is exposed to the energy of a tesla coil is because of the introduction of free electrons.

At least, that's the way I understand it. It may not be correct, but it gives you an idea of why a normal incandescent bulb will not light. :)
 

Cyberian

Diamond Member
Jun 17, 2000
9,999
1
0
Originally posted by: shuttleteam


Consider at the same power level. We were limited to 20 kVA (MAX) at the residential setting. Any more would trip the main breaker. Didn't have the balls to bug off the wires at the peckerhead (this is highly illegal anyways since all the power used does NOT go through the meter!)

Simple Coil running 15+ kVA

Twin Sisters

People that are brave enough to watch cannot have any metal objects on their person whatsoever, or they can catch on fire!

Cheers!
You are a very disturbed young man.

Got any more pictures??!!

:D
 

sharkeeper

Lifer
Jan 13, 2001
10,886
2
0
Nope.

In an incandescent bulb, the atoms are excited by heat, causing the electrons to give off photons.

In a fluorescent bulb, the gasses inside are excited by free electrons and give off photons. The reason the lamp glows when it is exposed to the energy of a tesla coil is because of the introduction of free electrons.

At least, that's the way I understand it. It may not be correct, but it gives you an idea of why a normal incandescent bulb will not light.

It will light because there's enough current passing through the filament when the lamp is prepped as I described. There's enough current to kill a person, however the current flows along your body instead of through it. Persons wearing pacemakers are strongly discouraged from watching Tesla Coils, however. :)

Taking power from the coil directly to the body or to an object held in hand is strongly discouraged for anyone that's not a professional.

Unfortunate experimenters are killed when an arc connects them to the primary side of the power carrying 60 Hz AC power. An arc is extremely low in impedance and is effectively a wire. If you arc to your primaries, there is a good chance of you getting killed!

Cheers!
 

Eli

Super Moderator | Elite Member
Oct 9, 1999
50,419
8
81
Originally posted by: shuttleteam
Nope.

In an incandescent bulb, the atoms are excited by heat, causing the electrons to give off photons.

In a fluorescent bulb, the gasses inside are excited by free electrons and give off photons. The reason the lamp glows when it is exposed to the energy of a tesla coil is because of the introduction of free electrons.

At least, that's the way I understand it. It may not be correct, but it gives you an idea of why a normal incandescent bulb will not light.

It will light because there's enough current passing through the filament when the lamp is prepped as I described. There's enough current to kill a person, however the current flows along your body instead of through it. Persons wearing pacemakers are strongly discouraged from watching Tesla Coils, however. :)

Taking power from the coil directly to the body or to an object held in hand is strongly discouraged for anyone that's not a professional.

Unfortunate experimenters are killed when an arc connects them to the primary side of the power carrying 60 Hz AC power. An arc is extremely low in impedance and is effectively a wire. If you arc to your primaries, there is a good chance of you getting killed!

Cheers!
Yeah, I realize it will light in the manner you described, but not "magically" disconnected like a fluorescent will. :)

That is interesting about arcing to the primary.

I think I'll stick to tabletop sized tesla coils. :D

 

dighn

Lifer
Aug 12, 2001
22,820
4
81
Originally posted by: Eli
Originally posted by: dighn
Originally posted by: Eli
Originally posted by: LordMorpheus
the purpose of a tesla coil is wireless power transmission. This insane dude named Tesla (of course) invented them some years ago, and is the subject of many urban legends (the death ray, his coil drawing so much power that the local powerplant lit on fire, etc. etc.).

The amazing arc lighting you see is kind of a side effect, and probably the reason it never took off. If you build a coil, you can hold a flourescent buld (not sure about normal incandescent) nearby and it will light up. If you have the coil set right (as in not suber powerful) there will be NO arc lighting going on, but the bulb will 'magically' light up. It is really an awesome sight, some buddies of mine built on recently and I saw it in action . . . turn the lights out, turn the coil on . . You can wave the tube around like a lightsaber and it will be the ONLY source of light in the room . . . except for the flourexcent bulbs in the ceilling that were glowing dimly . . . hahaha.

But, the idea never took off because of what you see in those picture. Imagine having one of those attached to ever powerline pole . . . . . .
No, it will not light a normal incandescent bulb.

you probably could if you use a properly tuned receiver (provided that the transmitter is strong enough in the first place).
Nope.

In an incandescent bulb, the atoms are excited by heat, causing the electrons to give off photons.

In a fluorescent bulb, the gasses inside are excited by free electrons and give off photons. The reason the lamp glows when it is exposed to the energy of a tesla coil is because of the introduction of free electrons.

At least, that's the way I understand it. It may not be correct, but it gives you an idea of why a normal incandescent bulb will not light. :)

i meant a receiver that outputs enough power to run an incadescent bulb :) i'm sure it's possible given a large enough tesla coil
 

tk149

Diamond Member
Apr 3, 2002
7,253
1
0
Ok, shuttleteam, just WTF kind of research do you do?!?!

And that Furby clip is priceless!:D
 

sharkeeper

Lifer
Jan 13, 2001
10,886
2
0
The bulb glass will crack from excessive heat after about 30 seconds. The filament supports don't burn too fast since there is little 02 to support combustion.

He is drawing an arc off a 10kVA pole pig. The end of the "stick" has an electrode (Lincoln 7018) attached because it's much more durable than copper. I cringe when I see such display of foolishness. You only get shocked by this once for sure. Some are foolish enough to do it alone.

Cheers!
 

Soybomb

Diamond Member
Jun 30, 2000
9,506
2
81
Okay I wasn't going to download them since I've seen so many electrical toys, but I grabbed the furby clip and damn I'm glad I did, thats awesoem :D
 

sharkeeper

Lifer
Jan 13, 2001
10,886
2
0
Here is one of the smaller coils being run off the larger one.

Power input was limited to 5 kVA. The flashing from behind is D'Arsonval discharges from the "feeder" coil. The second coil shorted out shortly after this video was shot and needs a secondary re-wind.

The sound even at this limited power (roughly 1/4 of what's available in the residential setting!) was still quite loud. Runs longer than a minute drive dogs six blocks away crazy and get plenty of attention. The crisp buzz can be heard a mile away on quiet evenings.

Cheers!