Tesla Envy - the video.
Tesladownunder, Thu Jun 28 2007, 06:15PMMy latest video. YouTube 1:43 mins
TDU
Re: Tesla Envy - the video.
Finn Hammer, Thu Jun 28 2007, 08:33PM
You are one cool dude, man!
Cheers, Finn Hammer
Finn Hammer, Thu Jun 28 2007, 08:33PM
You are one cool dude, man!
Cheers, Finn Hammer
Re: Tesla Envy - the video.
Sparrow338, Fri Jun 29 2007, 05:58AM
Very cool, nice video!
Sparrow338, Fri Jun 29 2007, 05:58AM
Very cool, nice video!
Re: Tesla Envy - the video.
sparky, Fri Jun 29 2007, 07:39AM
wow! So you are using a small PT for your power source? Very very nice! nice sparks!
sparky, Fri Jun 29 2007, 07:39AM
wow! So you are using a small PT for your power source? Very very nice! nice sparks!
Re: Tesla Envy - the video.
Tesladownunder, Fri Jun 29 2007, 07:49AM
I'm not sure what the transformers are but around the 10kV each suggests a PT. I found these two in a transformer bin in a junkyard and got them for the scrap iron/copper weight. They had some much larger multi pancake transformers but sadly too large.
The coil is only firing at about 5 feet sparks in this photo because I gave my son a limit. Nevertheless it should do much better than the 8ft best so far. I haven't put it through JavaTC because that won't run on my computer.
TDU
Tesladownunder, Fri Jun 29 2007, 07:49AM
I'm not sure what the transformers are but around the 10kV each suggests a PT. I found these two in a transformer bin in a junkyard and got them for the scrap iron/copper weight. They had some much larger multi pancake transformers but sadly too large.
The coil is only firing at about 5 feet sparks in this photo because I gave my son a limit. Nevertheless it should do much better than the 8ft best so far. I haven't put it through JavaTC because that won't run on my computer.
TDU
Re: Tesla Envy - the video.
kv, Fri Jun 29 2007, 08:36AM
very cool!!! was the cage you were standing in glowing red hot at the end?
kv, Fri Jun 29 2007, 08:36AM
very cool!!! was the cage you were standing in glowing red hot at the end?
Re: Tesla Envy - the video.
Tesladownunder, Fri Jun 29 2007, 10:33AM
The cage wasn't hot but the chainmail glove is earthed by 2 separate bolts. These were standard steel bolts but got hot enough with the RF losses to give me a slight thermal burn.
The welding type sparks are from some steel wool on the ends of all the spark contact points.
TDU
Tesladownunder, Fri Jun 29 2007, 10:33AM
The cage wasn't hot but the chainmail glove is earthed by 2 separate bolts. These were standard steel bolts but got hot enough with the RF losses to give me a slight thermal burn.
The welding type sparks are from some steel wool on the ends of all the spark contact points.
TDU
Re: Tesla Envy - the video.
sparky, Fri Jun 29 2007, 03:05PM
How many KVA are these trannies rated at? Curious.... who makes them?
sparky, Fri Jun 29 2007, 03:05PM
How many KVA are these trannies rated at? Curious.... who makes them?
Re: Tesla Envy - the video.
Firnagzen, Sat Jun 30 2007, 04:16AM
Good grief. Nice stunt! Also, is it just my eyes, or when you were using the dalek cage, were there streamers coming off the cage itself? I watched the video a couple of times and I'm pretty sure I saw something like that.
Firnagzen, Sat Jun 30 2007, 04:16AM
Good grief. Nice stunt! Also, is it just my eyes, or when you were using the dalek cage, were there streamers coming off the cage itself? I watched the video a couple of times and I'm pretty sure I saw something like that.
Re: Tesla Envy - the video.
the_anomaly, Sat Jun 30 2007, 04:38AM
I love the part where you pray to the tesla god and the new coil appears. When your in the cage it seems you look directly into the spark, how bright is it?
the_anomaly, Sat Jun 30 2007, 04:38AM
I love the part where you pray to the tesla god and the new coil appears. When your in the cage it seems you look directly into the spark, how bright is it?
Re: Tesla Envy - the video.
Tesladownunder, Sat Jun 30 2007, 05:09AM
Looking at the sparks directly is not that bright surprisingly and I have a UV coating on my glasses that I have shown to be effective.
The main safety concern with the shots of sparks to a rod in my hand, is how far past the handheld rod could the spark jump. ie could it reach my unprotected arm. In the end I decided that the extra 2 feet from my arm to tip of rod was more than a 4 foot spark would reach. It did reach my glove ie 5 feet, if you look closely, so a justified concern.
TDU
Tesladownunder, Sat Jun 30 2007, 05:09AM
sparky wrote ...
How many KVA are these trannies rated at? Curious.... who makes them?
Not sure about either as no ID on them. They get warm after a bit of use. I would guess at 3-5kVA from the amount of iron but they are fully epoxy coated so won't get rid of heat well.How many KVA are these trannies rated at? Curious.... who makes them?
Firnagzen wrote ...
Also, is it just my eyes, or when you were using the dalek cage, were there streamers coming off the cage itself? I watched the video a couple of times and I'm pretty sure I saw something like that.
It's a lens flare giving parallel images in the opposite quadrant. Lots of faint streaky lines. There is a little sparking at the base. This is probably capacitative coupling to a sheet of aluminum used as a counter poise. The cage and the sheet are all earthed at the same point.Also, is it just my eyes, or when you were using the dalek cage, were there streamers coming off the cage itself? I watched the video a couple of times and I'm pretty sure I saw something like that.
Nick wrote ...
I love the part where you pray to the tesla god and the new coil appears. When your in the cage it seems you look directly into the spark, how bright is it?
I did originally put my head to the ground as in Muslim prayer on a prayer mat. I wondered if anyone would be offended. Regardless, this shot came out the best out of a number of variations.I love the part where you pray to the tesla god and the new coil appears. When your in the cage it seems you look directly into the spark, how bright is it?
Looking at the sparks directly is not that bright surprisingly and I have a UV coating on my glasses that I have shown to be effective.
The main safety concern with the shots of sparks to a rod in my hand, is how far past the handheld rod could the spark jump. ie could it reach my unprotected arm. In the end I decided that the extra 2 feet from my arm to tip of rod was more than a 4 foot spark would reach. It did reach my glove ie 5 feet, if you look closely, so a justified concern.
TDU
Re: Tesla Envy - the video.
sparky, Sat Jun 30 2007, 07:27AM
I just bought myself a PT transformer, rated at 14.4kV 1750VA - westinghouse made. The unit weights almost 100 lbs, I think....I'll double check- I was told 3.5X KVA rating wouldn't be an issue. I have to take a few photos and send them your way :)
All for $250 CAN --- FOR a mint condition unit :)
sparky, Sat Jun 30 2007, 07:27AM
I just bought myself a PT transformer, rated at 14.4kV 1750VA - westinghouse made. The unit weights almost 100 lbs, I think....I'll double check- I was told 3.5X KVA rating wouldn't be an issue. I have to take a few photos and send them your way :)
All for $250 CAN --- FOR a mint condition unit :)
Re: Tesla Envy - the video.
Avi, Tue Jul 03 2007, 03:06AM
There seems to be enough current for the arcs to make the metal glow, and you are conducting this through your body? or have I missed something here?
Avi, Tue Jul 03 2007, 03:06AM
Tesladownunder wrote ...
The main safety concern with the shots of sparks to a rod in my hand, is how far past the handheld rod could the spark jump. ie could it reach my unprotected arm. In the end I decided that the extra 2 feet from my arm to tip of rod was more than a 4 foot spark would reach. It did reach my glove ie 5 feet, if you look closely, so a justified concern.
but is that safe (even assumiing it wont hit you directly)?The main safety concern with the shots of sparks to a rod in my hand, is how far past the handheld rod could the spark jump. ie could it reach my unprotected arm. In the end I decided that the extra 2 feet from my arm to tip of rod was more than a 4 foot spark would reach. It did reach my glove ie 5 feet, if you look closely, so a justified concern.
There seems to be enough current for the arcs to make the metal glow, and you are conducting this through your body? or have I missed something here?
Re: Tesla Envy - the video.
Tesladownunder, Tue Jul 03 2007, 03:32AM
Yikes. Not conducting anything through my body. Electrically, I am only an appendage to an earth wire. (don't tell my friends)
Nothing travels through me that I can feel.
Except when using the tiny coil at the start of the video.
TDU
Tesladownunder, Tue Jul 03 2007, 03:32AM
Yikes. Not conducting anything through my body. Electrically, I am only an appendage to an earth wire. (don't tell my friends)
Nothing travels through me that I can feel.
Except when using the tiny coil at the start of the video.
TDU
Re: Tesla Envy - the video.
Avi, Wed Jul 04 2007, 11:16AM
sorry? can you explain? That sounds contradictory.
Is the end of the stick connected to ground before your hand or something?
Avi, Wed Jul 04 2007, 11:16AM
sorry? can you explain? That sounds contradictory.
Is the end of the stick connected to ground before your hand or something?
Re: Tesla Envy - the video.
Tesladownunder, Wed Jul 04 2007, 01:03PM
The one foot metal rod is held in my hand which is in a long chainmail glove. There are two separate earth wires which run from the glove to RF ground back at the Tesla coil. Yes I am touching the inside of the glove but the rest of me is not grounded and not in a significant current path.
TDU
Tesladownunder, Wed Jul 04 2007, 01:03PM
The one foot metal rod is held in my hand which is in a long chainmail glove. There are two separate earth wires which run from the glove to RF ground back at the Tesla coil. Yes I am touching the inside of the glove but the rest of me is not grounded and not in a significant current path.
TDU
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