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Bipolar Marx
Move Thread LAN_403
CompWiz
Thu Mar 06 2008, 05:17AM
CompWiz Registered Member #1038 Joined: Mon Oct 01 2007, 08:02PM
Location:
Posts: 96
 		I built a Bipolar Marx generator.

I used caps from ebay: 15kv 2200pf ceramic.
For the resisters I used 3x300kohm 1w carbon film.

20 stages in one tower(the green one)
18 in the other (I killed two of my caps...)
input voltage is around 10kv

the sparks are about 30cm

sometimes they will go to 35cm

Pictures:

before potting in wax:
Link2

Some sparks:

Link2
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Video:
Link2
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CompWiz
Fri Mar 07 2008, 05:54AM
CompWiz Registered Member #1038 Joined: Mon Oct 01 2007, 08:02PM
Location:
Posts: 96
 		Man this thing is fun to play with,
just watching the corona fly in every direction in the dark is amazing.

I made another video of it:
Link2

I just laid the fluorescent tube on the HV+ wire from the flyback.
the glow longer when the marx fires.(from more current flowing through the wire when the caps are charging?)
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CompWiz
Wed Mar 12 2008, 02:06AM
CompWiz Registered Member #1038 Joined: Mon Oct 01 2007, 08:02PM
Location:
Posts: 96
 		Update...

I somehow killed one of the towers(cheap Chinese caps...)
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uzzors2k
Thu Mar 13 2008, 03:15PM
uzzors2k Registered Member #95 Joined: Thu Feb 09 2006, 04:57PM
Location: Norway
Posts: 1308
 		That's too bad, it was working good. I hope mine doesn't fail too, my caps are almost identical to yours.
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CompWiz
Thu Mar 13 2008, 07:26PM
CompWiz Registered Member #1038 Joined: Mon Oct 01 2007, 08:02PM
Location:
Posts: 96
 		I think just one cap died, I can hear arcing sounds from it but I cant figure out which one its coming from.
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