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4hv.org :: Forums :: High Voltage
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ZVS jacobs ladder (with video)

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CompWiz
Fri Dec 07 2007, 07:12AM Print
CompWiz Registered Member #1038 Joined: Mon Oct 01 2007, 08:02PM
Location:
Posts: 96
I was bored and made a Jacobs ladder in 15 minutes out of...

-some hanger wire
-a block of wood
-two screws

the zvs driver specs are:

-24v
-2uf cap
-7+7 turns on the primary
-DC flyback

video--> Link2
video2-> Link2

1197011520 1038 FT0 S6301436
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...
Fri Dec 07 2007, 07:31AM
... Registered Member #56 Joined: Thu Feb 09 2006, 05:02AM
Location: Southern Califorina, USA
Posts: 2445
quite nice!

Any thoughts as to boxing it up?
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CompWiz
Fri Dec 07 2007, 03:55PM
CompWiz Registered Member #1038 Joined: Mon Oct 01 2007, 08:02PM
Location:
Posts: 96
I need to find a smaller cap first
the flyback gets WAY to hot

and ill have to rewind the primary for 12v (i think it worked best at 4+4turns)
because i only have one good 12v battery, the other one was from my UPS.

I do have two good 300w AT PSUs with 15A 12v line
does anyone know how to put them series?
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...
Fri Dec 07 2007, 05:56PM
... Registered Member #56 Joined: Thu Feb 09 2006, 05:02AM
Location: Southern Califorina, USA
Posts: 2445
You can series 2 PC power supplies by cutting the green ground wire on one of them, and making sure that the cases do not touch (one will be floating at 15v).

But it seems like if it is getting to hot on 24v you should be able to just run it off 15v and use the same number of primary turns/primary cap?
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CompWiz
Fri Dec 07 2007, 10:00PM
CompWiz Registered Member #1038 Joined: Mon Oct 01 2007, 08:02PM
Location:
Posts: 96
I got it in a box and running on12v

I put a fan in the box too

video-- Link2


1197064440 1038 FT35550 S6301452

1197064440 1038 FT35550 S6301449

1197064440 1038 FT35550 S6301445
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rp181
Fri Dec 07 2007, 11:05PM
rp181 Registered Member #1062 Joined: Tue Oct 16 2007, 02:01AM
Location:
Posts: 1529
ive noticed most if not all jacobs ladders have hooked ends, is that there for a reason?
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CompWiz
Fri Dec 07 2007, 11:14PM
CompWiz Registered Member #1038 Joined: Mon Oct 01 2007, 08:02PM
Location:
Posts: 96
If the ends are pointy the arc will just stay at the top.
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