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4hv.org :: Forums :: General Chatting
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Post Your Cool Pic Here!

Move Thread LAN_403
Mads Barnkob
Tue May 26 2009, 02:23PM
Mads Barnkob Registered Member #1403 Joined: Tue Mar 18 2008, 06:05PM
Location: Denmark, Odense C
Posts: 1968
Weighing in at exactly 1046g we have here a 67mm wide, 90mm heigh and 150mm deep heatsink, actually there is a total of 8 of these sweet babies.

On top we have 4x IXYS 60N60 IGBTS enjoying the mountaintop view over my desk :D
1243347816 1403 FT6000 Img 2258
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Arcstarter
Tue May 26 2009, 02:54PM
Arcstarter Registered Member #1225 Joined: Sat Jan 12 2008, 01:24AM
Location: Beaumont, Texas, USA
Posts: 2253
Killa-X wrote ...

Awhile ago I made a snubber circuit for my flyback to help prevent spikes and stuff. I learned 2 things with it.

1: With correct hookup, I get thin arcs, but i can go as long as 5 inch (75V) with a flyback. Multi-stringed 5 inch arc.
2: If reversed, I get THICK ZVS-like arcs from 1 inch (20V) to 3 near 4 inch (75V) Shorter, but THICK and white.

I found that my mosfet never got warm, even without the snubber. However the snubbers resistor gets extreamly hot if its not sinked. I use to have a diode on the resistor, until i found its under-rated. 1000V 1A 1n4001. Poor thing smoked a tad. Put a 1000V 6A on it, nope, still did. So i cut that all out.


1243180406 1643 FT6000 Form1

1243180406 1643 FT6000 Form2


as you might have noticed, theres some redish crap all over the cap and the side of the resistor..My first Varistor, well, It kinda had a little issue, super smoke bomb. SO. I cut the varistor off my 120V switch I hacked off a old radio, and well, Doesn't even get warm :) She works! You can also see a 4001 hiding under the resistor :D Too bad its not connected due to overheating.

*Diode connected = Diode hot, resistor cool. No diode, Resistor hot.
Umm, that diode was supposed to be uf4007! It has to be ultrafast, otherwise it will stick halfway on and be linear and heat. Needs to be high voltage, too. The spikes are likely pretty high.

@Mads. You depress me XD. That is just awesome.
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Killa-X
Sat May 30 2009, 07:22AM
Killa-X Registered Member #1643 Joined: Mon Aug 18 2008, 06:10PM
Location:
Posts: 1039
I decided to post my pics here because I'm not fully done, and it will be a delayed project until my older brother moves up to Michigan this weekend. Once I get more going, I'll post a thread for a project. For now, here.

Pic 1: With a flash, you can tell I used 2 different spools. I can't buy stuff because of my brother moving, so I'm making things with what I have, many transformers. The transformer covered 6.25 inches of a 2 inch PVC pipe. Then I had extra from a previous one, and finished it to 10 inches. NOTE:It's NOT done. I have to varnish it, trim the bottom to balance it, and cut the top off. Right now I'm adding 2 knex wheels at the ends for a motor shaft to spin while i varnish it. Then i will cut 3 inches off the top.

Pic2: No flash
Pic3: Possible topload maybe. Not sure.

1243667941 1643 FT6000 Flash
1243667941 1643 FT6000 Noflash
1243667941 1643 FT6000 Topload
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Hon1nbo
Sun May 31 2009, 01:24AM
Hon1nbo Registered Member #902 Joined: Sun Jul 15 2007, 08:17PM
Location: Pacific Northwest USA
Posts: 1042
dabbling with Qtpfsgui for the first time... used some old photos I took for my first attempts at HDRs of my backyard

1243733083 902 FT6000 Pool Hdr Test 01
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TheBoozer
Mon Jun 01 2009, 11:41PM
TheBoozer Registered Member #1535 Joined: Wed Jun 11 2008, 11:37PM
Location: Northeastern Pennsylvania - USA
Posts: 117
I assembled a very odd arrangement with my 1st DRSSTC. I thought it was kinda interesting to see a 42 inch arc coming from a 2 inch by 8 inch toroid...
1243899698 1535 FT6000 Connected2
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LithiumLord
Tue Jun 02 2009, 11:17AM
LithiumLord Registered Member #1739 Joined: Fri Oct 03 2008, 10:05AM
Location: Moscow, Russia
Posts: 261
Lol!
Make a fake primary on the bottom topload (sry, didn't intend it to sound that silly, "bottom topload" lol) and it will be a braincrash :D
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rp181
Tue Jun 02 2009, 03:27PM
rp181 Registered Member #1062 Joined: Tue Oct 16 2007, 02:01AM
Location:
Posts: 1529
You should have raised the camera a little more =)

My advanced optic setup:
Link2
to magnify a object:
Link2
that's around 1/32 of a inch on a aluminium projectile.
And a animation i made:
Link2
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Dr. Dark Current
Tue Jun 02 2009, 05:36PM
Dr. Dark Current Registered Member #152 Joined: Sun Feb 12 2006, 03:36PM
Location: Czech Rep.
Posts: 3384
rp181 wrote ...

My advanced optic setup:
Link2
to magnify a object:
Link2
that's around 1/32 of a inch on a aluminium projectile.
I get this error message: "You're seeing this page because account contains no index file. (EG: index.htm)"

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rp181
Tue Jun 02 2009, 06:03PM
rp181 Registered Member #1062 Joined: Tue Oct 16 2007, 02:01AM
Location:
Posts: 1529
Seems that it blocks those to prevent from using it as a image hosting site. Both are on this page:
Link2

The second image is not very good. I mounted the lens and laser, so it stays better. I will get a better picture tonight. The camera also doesn't capture much, just the brightest spots.
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Hon1nbo
Tue Jun 02 2009, 10:15PM
Hon1nbo Registered Member #902 Joined: Sun Jul 15 2007, 08:17PM
Location: Pacific Northwest USA
Posts: 1042
some new items in my Chemical Collection (and I have two more, VERY special Element samples coming in the next few days... bu they are from out of the country so I don't know when exactly I am going to get them...) - anyone willing to guess what elements I am getting samples of?


1243980904 902 FT6000 United Nuclear Two
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