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Ideas for creating a portable Tesla coil Answered

I am in the process of planning a small-ish Tesla coil that can fit inside of a medium-sized hard shell suitcase. I would like to be able to power it without using a wall outlet, which most likely means with 6v lantern batteries or 12v lawnmower batteries, but if you have any other suggestions I'd be glad to hear them. I would prefer to keep the coil as simple as possible and maintain a spark gap configuration rather than a solid-state one because I am not very good at soldering small parts. I was thinking about using a neon transformer from a set of car under lights such as these http://www.amazing1.com/profneon.htm (is there anything there which would work especially well?) or perhaps a modified ignition coil with a mechanical interrupter, similar to a Ruhmkorff coil (I have no idea how I would do this, but it sounds like it would work). Your thoughts? Also, instructions on how to construct a flat 'pancake-style' secondary could be beneficial.



7 years ago

You should make a lightning gun! I made a little one that fits inside a small child's toy ray gun running on 12V, producing 4" arcs. Explanations in the video below :




9 years ago

If you are looking to be able to run from batteries, an ignition coil would be the way to go. A neon sign transformer requires mains AC to give the high voltage output. Ignition coils on the other hand are designed to run off of a 12V battery, just be sure the battery can supply enough current. You could drive the ignition coil with a 555 timer switching a MOSFET or other power transistor. Just do a Google Image search and I am sure you will find plenty of schematics. I know you said that you don't want to solder lots of small parts so if a 555 timer circuit is to much for you, you could use this driver: http://tesladownunder.com/HVICBeginnersSchematic.jpg Hope this helps.