Some time ago, after visiting some websites, I got the idea to generate
electric arcs. I found a few ways to do it, and I will resume my experiments
on this page.
Microwave oven transformer
The first high voltage source I found was a microwave oven transformer. Generally,
microwave oven transformers have 2kv outputs at 200-300 mA.
I also used the diode and capacitor from the same oven. The transformer is a
PX771 from toshiba. The capacitor is 0.89uf, 2100 Volts and the Diode is a SR101-C.
The capacitor and diode are connected in a way that forms a voltage doubler.
To use the flyback from a TV set, you must feed it DC pulses at 15khz(more or less). The
15 khz wave can be generated with a 555 or a frequency generator(that's what I used). 12 Volts
are enough, and you should obtain an output voltage of 10-15kv (not sure about the exact voltage).
Of course, the 555 output is not powerful enough to drive a flyback. For this, a large transistor
or mos-fet should be used. I used an IRFBC20 mostfet, salvaged from a small switching power
My father gave me a high voltage transformer that I think was used to light fuel in a furnace(If you
have a better idea, please mail me). You can see a picture of
it on the left. Here is a transcript of what is written on it:
D.C. Power Supply
Mod. No. 9T63Y2259G3
Input: V 120 HZ 60 VA 40
Output: 13.5 KV .5 MA
Cust. Pt. No. 2716
I obtained very nice sparks with this transformer. Here are a few pictures of them:
It tried to light small xenon tubes(photo flashs) with the voltage coming out
of a TV flyback, using various driving frequencies. It did not produce a very
bright output, but it was fun. Here's a few pictures:
Here are some websites that I found:
"Quick & Dirty" Marx
The guy uses a flyback to power up it's Marx generator. My flyback driver is based
on his schematic. If you have the time, visit his very good and interesting website.
I cannot be held responsible for any damages that could occur to you
or your equipment while following the procedures present on this page.
Also, I GIVE ABSOLUTELY NO WARRANTY on the correctness and usability
of the informations on this page. Please note, however, that the procedures
above have worked in my case without any damages or problems.