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Forums
4hv.org :: Forums :: Tesla Coils
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SSTC help please

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ZakWolf
Tue Oct 19 2010, 06:58AM Print
ZakWolf Registered Member #3114 Joined: Sat Aug 14 2010, 08:33AM
Location:
Posts: 608
i looked for about an hour and a half for a simple sstc driver that does not require crazy parts mostly local i would prefer if it was local (radio shack :( )

Is there a 555 based tesla coil driver or something that i could build using a IRF840+555 timer

thanks i dont really care about the spark length i will worry about that latter as long as i can build a simple sstc

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Duality
Tue Oct 19 2010, 07:03AM
Duality Registered Member #1951 Joined: Sun Feb 01 2009, 01:59PM
Location:
Posts: 105
if you really want to go for easy, i saw a schematic a while back:
Link2

it doesn't even use a ic.
if you scroll down, there some mosfet designs too smile
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HV Enthusiast
Tue Oct 19 2010, 11:36AM
HV Enthusiast Registered Member #15 Joined: Thu Feb 02 2006, 01:11PM
Location:
Posts: 3068
You just need a simple antenna based feedback coil. Requires just a small regulator (such as 7812 or 7815) for housekeeping power, 555 timer for self-start, a gate driver, and a MOSFET which you have.

If you contact me at the email address on my website below, i'll email you a schematic when I get home.

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ZakWolf
Tue Oct 19 2010, 02:37PM
ZakWolf Registered Member #3114 Joined: Sat Aug 14 2010, 08:33AM
Location:
Posts: 608
I have a couple IRFP250's would those be better?
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Duality
Tue Oct 19 2010, 02:49PM
Duality Registered Member #1951 Joined: Sun Feb 01 2009, 01:59PM
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Posts: 105
yes you could use those.
but how much power input are you planning to build the coil for?
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ZakWolf
Tue Oct 19 2010, 10:24PM
ZakWolf Registered Member #3114 Joined: Sat Aug 14 2010, 08:33AM
Location:
Posts: 608
12v at 2.5 amps
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ScotchTapeLord
Tue Oct 19 2010, 11:08PM
ScotchTapeLord Registered Member #1875 Joined: Sun Dec 21 2008, 06:36PM
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Posts: 635
I don't think you will get breakout with 30 watts...
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ZakWolf
Tue Oct 19 2010, 11:20PM
ZakWolf Registered Member #3114 Joined: Sat Aug 14 2010, 08:33AM
Location:
Posts: 608
does any one know of a really simple solid state design using a 555 and radio shack parts? that would be awesome
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Dr. Dark Current
Wed Oct 20 2010, 07:45AM
Dr. Dark Current Registered Member #152 Joined: Sun Feb 12 2006, 03:36PM
Location: Czech Rep.
Posts: 3384
If you use your IRF840 MOSFET and something like 60 volt supply, you might get some results (better coupling with more primary turns). You will need to use an interrupter with a pretty low on-time, you can do that with a 556 or use a circuit like this Link2
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william L
Thu Oct 21 2010, 04:42AM
william L Registered Member #3093 Joined: Mon Aug 09 2010, 11:40PM
Location:
Posts: 68
ScotchTapeLord wrote ...

I don't think you will get breakout with 30 watts...
On the contrary! my first coil was steve's micro sstc, and I achieved 1cm from 20W.
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