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Odin The All-Fragger: a large DRSSTC

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Marko
Mon Mar 12 2007, 09:59PM
Marko Registered Member #89 Joined: Thu Feb 09 2006, 02:40PM
Location: Zadar, Croatia
Posts: 3145
 		Oh, it can't be that bad; just use some fat plastic insulated wire and I'm sure your transformers will be fine. You could also have used some of those plastic-enveloped cores if you really wanted to be paranoid, but plastic insulation itself is usually enough for many kilovolts.

Steve's DRSSTC 2 uses enamelled wire with just average insulation from core and some hot glue, obivously it worked fine to 800 volts or so.

BTW, any pics oburnt transformers? suprised
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Steve Conner
Mon Mar 12 2007, 10:38PM
Steve Conner Registered Member #30 Joined: Fri Feb 03 2006, 10:52AM
Location: Glasgow, Scotland
Posts: 6706
 		The problem is that there isn't enough room on the core to wind the required number of turns with Cat5 or whatever. And the board is made to fit those cores, so it needs a major redesign.

I didn't let them smoke much, I turned the power off as soon as I saw they were breaking down suprised
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Marko
Mon Mar 12 2007, 10:53PM
Marko Registered Member #89 Joined: Thu Feb 09 2006, 02:40PM
Location: Zadar, Croatia
Posts: 3145
 		Yeah, transformers look sort of claustrophobic for thick wire... I guess you don't need more than 10 or so turns for signal transformer, for power, maybe you can increase frequency...

I hope you'l come up with some better ideas!
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Mike
Mon Mar 12 2007, 11:27PM
Mike Registered Member #58 Joined: Thu Feb 09 2006, 05:40AM
Location: Tri-Cities, Washington, US
Posts: 317
 		I actually took the wires from the cat5 out of the plastic tubing as it works much better that way and allows you to wind many more turns.
Dunno if you tried that yet.
Good Luck!
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Dr. Drone
Tue Mar 13 2007, 01:53AM
Dr. Drone Registered Member #290 Joined: Mon Mar 06 2006, 08:24PM
Location:
Posts: 1673
 		shades
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Mike
Tue Mar 13 2007, 03:03AM
Mike Registered Member #58 Joined: Thu Feb 09 2006, 05:40AM
Location: Tri-Cities, Washington, US
Posts: 317
 		Whoa, those look pretty cool especially when dipped in epoxy. Good Idea!

On an off topic note, 14-16 foot sparks?? Awesome!
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Marko
Tue Mar 13 2007, 08:35AM
Marko Registered Member #89 Joined: Thu Feb 09 2006, 02:40PM
Location: Zadar, Croatia
Posts: 3145
 		Surely, when talking about cat5 I meant just the wires not entire cable! There are also thinner wires like those from mouse cables and etc. but they have weaker insulation!

You could also dip the core in some resin and *then* wind on it to minimize chance of arcover to core.

I'm sure steve will get over it easily..
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Hazmatt_(The Underdog)
Wed Mar 14 2007, 11:07PM
Hazmatt_(The Underdog) Registered Member #135 Joined: Sat Feb 11 2006, 12:06AM
Location: Anywhere is fine
Posts: 1735
 		What I don't understand is why you guys use cat5 (300V insulated at best) pvc wire.

When I get into this I'm going straight to teflon wire and eliminate the arcing problem at the source.
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ragnar
Wed Mar 14 2007, 11:28PM
ragnar Registered Member #63 Joined: Thu Feb 09 2006, 06:18AM
Location:
Posts: 1425
 		300V at best?

Try! Its breakdown voltage is MUCH higher than its breakdown rating.
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Steve Ward
Thu Mar 15 2007, 05:14AM
Steve Ward Registered Member #146 Joined: Sun Feb 12 2006, 04:21AM
Location: Austin Tx
Posts: 1055
What I don't understand is why you guys use cat5 (300V insulated at best) pvc wire.

When I get into this I'm going straight to teflon wire and eliminate the arcing problem at the source.


Im sure the teflon wire is better, i just dont have any. This is why i tested the cat-5 with the NST. I was satisfied by the results.
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