Comments on: Jacob’s Ladder http://hackaday.com/2008/12/30/jacobs-ladder/ Fresh hacks every day Fri, 10 Feb 2012 13:27:05 +0000 hourly 1 http://wordpress.com/ By: Matt http://hackaday.com/2008/12/30/jacobs-ladder/comment-page-1/#comment-283045 Sun, 12 Dec 2010 18:51:51 +0000 http://hackaday.com/?p=7377#comment-283045 Yeah spam like that really works mate. And instructable removed =(

]]> By: Porcelain http://hackaday.com/2008/12/30/jacobs-ladder/comment-page-1/#comment-143121 Tue, 18 May 2010 05:55:55 +0000 http://hackaday.com/?p=7377#comment-143121 Wow, good post. I just now clicked a link to your site and I am already a fan. :D

]]> By: Zach K. http://hackaday.com/2008/12/30/jacobs-ladder/comment-page-1/#comment-76319 Tue, 26 May 2009 21:09:18 +0000 http://hackaday.com/?p=7377#comment-76319 OMG this movie is f***** AWSOMEE!! WAY better than the first one.. I watched it online at “www.nowonhd.com” quality was awsome..

]]> By: Carlos R. http://hackaday.com/2008/12/30/jacobs-ladder/comment-page-1/#comment-76315 Tue, 26 May 2009 20:49:19 +0000 http://hackaday.com/?p=7377#comment-76315 this movie was wayyy better than the first one I watched it yesterday assoon as I found out it got leaked on the internet at “nowonhd.com”

]]> By: Pedro R. http://hackaday.com/2008/12/30/jacobs-ladder/comment-page-1/#comment-76312 Tue, 26 May 2009 20:38:45 +0000 http://hackaday.com/?p=7377#comment-76312 This movie got leaked.. watched it a couple days ago.. for those of you that are interested on were i saw it at here’s the link: “nowonhd.com” the movie was pretty good i liked it alot.. quality was also great..

]]> By: Robert K. http://hackaday.com/2008/12/30/jacobs-ladder/comment-page-1/#comment-76311 Tue, 26 May 2009 20:29:16 +0000 http://hackaday.com/?p=7377#comment-76311 Awsome movie loved it! it got leaked.. I watched it a couple days ago online b4 it got out. for those of you who are interested in the site I watched it at here it is: “nowonhd.com” the quality is pretty good..

]]> By: Jeff K. http://hackaday.com/2008/12/30/jacobs-ladder/comment-page-1/#comment-76309 Tue, 26 May 2009 20:28:12 +0000 http://hackaday.com/?p=7377#comment-76309 OMG this movie is f***** AWSOMEE!! WAY better than the first one.. I watched it online at “www.nowonhd.com” quality was awsome..

]]> By: Mike K. http://hackaday.com/2008/12/30/jacobs-ladder/comment-page-1/#comment-76307 Tue, 26 May 2009 20:27:26 +0000 http://hackaday.com/?p=7377#comment-76307 GREAT Movie! I watched it online at “nowonhd.com” the movie was freakin awsome..

]]> By: abel2488 http://hackaday.com/2008/12/30/jacobs-ladder/comment-page-1/#comment-66182 Fri, 13 Mar 2009 16:41:58 +0000 http://hackaday.com/?p=7377#comment-66182 me podria explicar alguien como construir una escalera de jacob con un transformador de microondas me refiero al montaje si puede ser con fotos y en español mejor gracias

]]> By: carlton http://hackaday.com/2008/12/30/jacobs-ladder/comment-page-1/#comment-58205 Wed, 07 Jan 2009 18:07:34 +0000 http://hackaday.com/?p=7377#comment-58205 high voltage is fun, and not to be (too much of) a buzzkill, but, guys talking about 30 mA or 50 mA being okay, think again, that can be very dangerous, depending on the path. more than 10 mA can make it so you can’t let go!

from OSHA on effects of ac electricity:
* >3 mA- Painful shock- cause indirect accident
* >10 mA- Muscle contraction – “No Let Go” danger
* >30 mA- Lung paralysis, usually temporary
* >50 mA- Ventricular fibrillation, usually fatal
* 100 mA to 4 A- Certain ventricular fibrillation, fatal
* Over 4 A- Heart paralysis, severe burn

always use the one hand behind the back deal, a path through the heart is the real issue — i.e., if you grab the ladder with both hands!

]]> By: jaded http://hackaday.com/2008/12/30/jacobs-ladder/comment-page-1/#comment-57610 Fri, 02 Jan 2009 04:09:23 +0000 http://hackaday.com/?p=7377#comment-57610 We built one about 30 years ago with a transformer that had a porcelain standoff marked “65KV” that my friend got from somewhere unknown (we kind of assumed it was a neon sign transformer.) We were too scared to power it with 120 VAC so we used two D-cells hooked in series with a mechanical buzzer. Two bent coat hangers later, and we had a working Jacob’s ladder.

]]> By: Tony http://hackaday.com/2008/12/30/jacobs-ladder/comment-page-1/#comment-57602 Fri, 02 Jan 2009 02:41:26 +0000 http://hackaday.com/?p=7377#comment-57602 I built one of these also with an oil burner transformer. This isn’t the best one I’ve seen but it’s an alright use of the automotive coil. You can make really tiny ones that just sit on your desk with smaller automotive coils.

]]> By: markps2 http://hackaday.com/2008/12/30/jacobs-ladder/comment-page-1/#comment-57597 Fri, 02 Jan 2009 01:49:57 +0000 http://hackaday.com/?p=7377#comment-57597 I made one using an old oil furnace transformer. I don’t recommend using a microwave transformer as the current is very high. http://www.youtube.com/watch?v=iGYuXRRc-hY

]]> By: TJ http://hackaday.com/2008/12/30/jacobs-ladder/comment-page-1/#comment-57417 Wed, 31 Dec 2008 17:03:41 +0000 http://hackaday.com/?p=7377#comment-57417 @marty

“calibre”

]]> By: Josh http://hackaday.com/2008/12/30/jacobs-ladder/comment-page-1/#comment-57403 Wed, 31 Dec 2008 14:49:20 +0000 http://hackaday.com/?p=7377#comment-57403 @roshamboe: To each his own. But, I prefer to look at this as a proof-of-concept or educational project. There are a lot of hacks that one could consider a “waste of time.”

I built on of these long ago for a science fair project. It was a project out of Popular Electronics or one of those hobby mags. It used a Quadrac and a couple of other current-limiting things. The assembly minus the rods was enclosed in a metal box with just the terminals sticking out. The project didn’t say anything about not using a two-prong cord, so when you turned it on, you got a nice, healthy shock (and electrical interference) from the corona discharge at the cap of the ignition coil.

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