Tesla coil almost killed me! - diyAudio
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Old 17th March 2008, 04:50 AM   #1
diyAudio Member
Join Date: Dec 2004
Location: Overland Park, KS
Default Tesla coil almost killed me!

I was setting up a demonstration of my Tesla coil at the local library last Thursday. I was attempting to adjust the spark gap when somehow the primary voltage arced to my finger. I had my other hand solidly on a grounded metal box.
This is the scarriest thing that has ever happened to me. I knew what was happening but could not let go of the box or the plastic rod I was adjusting. finally, my legs buckled and I fell back away from the table and disconnected myself. I am still not sure how the thing got me but I am redesigning the whole setup now including an emergency shut off button on a post to be placed in front of the demo table. I have been doing this for twenty years and have never had this happen. The primary is a neon sign transformer 15kv @ 60ma with .01ufd of radar pulse capacitors connected to it. I think I got defibrillated about 200 times before I let go.
The tingling and numbness in my left hand is just now starting to lightnen up. I am still going to the doctor this week to have my heart listened to.
Don't try this at home!
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Finding new ways for the extreme mis-application of high tech!
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Old 18th March 2008, 02:08 PM   #2
Join Date: Mar 2006
Location: VA
Any NDEs or prophecies?

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Old 18th March 2008, 11:09 PM   #3
glen65 is offline glen65  United States
diyAudio Member
Join Date: Jun 2004
Location: Richland County Ohio
Had the current been much higher you wouldn’t
need a doctor.
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Old 21st March 2008, 02:00 AM   #4
diyAudio Member
Join Date: Dec 2004
Location: Overland Park, KS
Default No nde or prophecies.

Just glad I'm alive and am re-thinking what I am doing with my time. Spending more with friends and family, getting rid of a lot of junk. I think of it as a wake up call!
Finding new ways for the extreme mis-application of high tech!
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Old 22nd March 2008, 12:50 AM   #5
KBK is offline KBK  Canada
diyAudio Member
Join Date: Dec 2003
Location: The Wilds Of Canada
I've been nailed by the power supplies for commercial grade 9" gunned Electrohome CRT projectors. 38kv, 11ma.

"GOOD MORNING!" you say when you get your breath back. And smell the stench of burnt flesh.

Watch your white blood cell count. Takes a few days to get it back up, so try to stay away from contagious folk until then.

PS. It always happens when you are on the top of a ladder, with your hands deep inside the PJ. One has to make a conscious effort to NEVER place the mini-maglight (2 AA size) that is invariably in one's mouth..between the teeth, in case of electrocution.
"Extraordinary claims require extraordinary evidence." - Carl Sagan. Sometimes the claims aren't extraordinary. Sometimes the weakness of men's minds are the culprit. Mass mentality has nothing to do with obviousness or truths.
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Old 22nd March 2008, 09:10 PM   #6
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Join Date: Jan 2004
Location: dorchester ma
Same here, I flat handed the outside of a live Tek 565 scope CRT while looking over Jim Williams shoulder (while he was still a TA at MIT). Knocked me right to the floor.
"The question of who is right and who is wrong has seemed to me always too small to be worth a moment's thought, while the question of what is right and what is wrong has seemed all-important."
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