RSS
Here's a great new Instructable in the Make group on building a five foot tall Jacob's ladder from Ewilhelm, he writes "This classic climbing arc completes any mad scientist's dungeon. Don't touch the electrodes: they're at 12 kV! Get a neon sign transformer rated for 9 - 12 kV and 30 mA. Make sure it's an old style, heavy coil transformer and not solid-state. The solid-state transformers won't start the arc. I got a Transco 12 kV 30 mA transformer on Ebay for $35. It didn't have a wall plug, so I wired one on."... Link.
HOW TO - Build a five foot tall Jacob's ladder
Here's a great new Instructable in the Make group on building a five foot tall Jacob's ladder from Ewilhelm, he writes "This classic climbing arc completes any mad scientist's dungeon. Don't touch the electrodes: they're at 12 kV! Get a neon sign transformer rated for 9 - 12 kV and 30 mA. Make sure it's an old style, heavy coil transformer and not solid-state. The solid-state transformers won't start the arc. I got a Transco 12 kV 30 mA transformer on Ebay for $35. It didn't have a wall plug, so I wired one on."... Link.
Posted by Phillip Torrone |
Dec 14, 2005 06:57 AM
DIY Projects, Electronics, Instructables, Science |
Permalink
| Comments (4)
| Email This |
| Digg this!
Recent Entries
- CRAFT weekly recap
- 8-bit touch-sensitive handheld
- Cigar box music player
- The 'bike tree', an automatic storage system for cycles, can hold up to 6,000 bikes
- Building a folding table
- Maker Shed weekly wrap-up
- The Chumby has landed!
- Brainwave sofa by Unfold & Lucas Maassen
- Full MIDI drumset with Guitar Hero and Rock Band drums
- Hole punched art
Comments
Oldest comments listed first.
Leave a comment
Subscribe to MAKE Magazine!
Subscribe today, save 42% and get web access to MAKE free. MAKE Digital Edition is available only to subscribers.
$34.95 / 1 year
(4 Quarterly Issues)
This reminds me of a book my wife just got for me:
Electronic Gadgets for the Evil Genius
by Robert E. Iannini
Very fun book! Details the cost, parts needed and how to assemble each project.
Reply to this comment
I've built a few of these myself and the effect is impressive! If it wasn't for the loud noise, the ozone, the RF hash, and the over heating electrodes I'd have one running all the time.
Reply to this comment
The electrodes can be spaced further apart at the top creating a much more spectacular plasma flame.
This is a 6 footer I built from a 12kV 80mA NST (neon sign transformer):
http://www.webclot.com/high_volt/images/DSCF0120.JPG
The transformer is now used in my large Tesla Coil. Must take some pictures of it one day!
Reply to this comment
The electrodes can be spaced further apart at the top creating a much more spectacular plasma flame.
This is a 6 footer I built from a 12kV 80mA NST (neon sign transformer):
http://www.webclot.com/high_volt/images/DSCF0120.JPG
The transformer is now used in my large Tesla Coil. Must take some pictures of it one day!
Reply to this comment