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Ferrite Rod + Tesla Coils = Woah!



Original poster: "Neil Richardson by way of Terry Fritz <twftesla-at-qwest-dot-net>" <neil-at-opticalrealities-dot-com>

The other day I built a small tesla coil in 1 hour, it is VERY badly built:
5 primary turns, 200~ secondary, very small. It works, very poorly, but it
works, so thats kinda a startm enuf to help you understand one. I tuned it a
bit, and managed to get a 5mm arc to 10mm. Someone then told me that putting
a ferrite rod in the coil would improve its performance, after all, i'm
using a flyback for power with a 12V 1A supply.

Guess what? I now get 1" arcs when I put my finger near to the thing! Its
not really a tesla coil now, but its good for 1 hours work and with very
limited materials! I salvaged every part from broken/working devices and
boxes full of stuff I forgot to unpack 3 years ago. I would like to post
some pics, but sadly my camera needs new batteries, ill be sure to post some
when I get some new batteries for it.