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LAN_403

Arcstarter

Thu Dec 04 2008, 05:44PM

Registered Member #1225 Joined: Sat Jan 12 2008, 01:24AM
Location: Beaumont, Texas, USA
Posts: 2253

e.m.c.2 wrote ...

Photo of my homebrew transformer:

The tank and the transformer:

The cover:

Winding process:

Me at the winding machine..

500 Bifilar Turns of 1,25 mm heavy duty magnet wire for primary
120.000 Turns (60.000 each winding) of 0.15 magnet wire

and finally 40 liter of Shell diala DX !!!

At least the photo of the arcs..

WOW!

That is pretty freaking sweet! Do you know the voltage/current output? And is it limited? And watts? :P Homewound transformers always amaze me.

@LithiumLord:
That first pic looks awesome! (i think it was the first pic, i saw it yesterday :P)
Well, all of them look awesome, but the top is ma favorite.

Dr. Dark Current

Thu Dec 04 2008, 05:55PM

Registered Member #152 Joined: Sun Feb 12 2006, 03:36PM
Location: Czech Rep.
Posts: 3384

That's amazing transformer, how long did it took to wind it?

What is the interlayer insulation made of?

I think that core would be happy with just 200 turns on your primary, this way you could get more power out of it...

Hon1nbo

Thu Dec 04 2008, 11:59PM

Registered Member #902 Joined: Sun Jul 15 2007, 08:17PM
Location: Pacific Northwest USA
Posts: 1042

here are a few pics you might enjoy, especially the bottom ones for those in line for the junk box!
in this order:
"Frankenstein Does Drugs!"
"Imagination-Land Is Surrounded!"
"Manufactured Art" (painting rendition, later used in sculpture awaiting photo)
"Under the Eastern Stars"
"Camera Graffiti"
(OMG)"Monkey Tron"
(guess the location. hint: it's not the Grand Canyon)

The last two are some pictures of the entire assembly from which my "larger" contribution to the junk box will come (being symmetric, independent board design, the rest of it will function hint) and take a guess what it is! - I posted one of the chips to help you out

1228434486 902 FT0 Frankenstein Does Drugs

1228434486 902 FT0 Imagination Land Is Surrounded

1228434486 902 FT0 Manufactured Art The Painting

1228434486 902 FT0 Under The Eastern Stars

rp181

Fri Dec 05 2008, 01:37AM

Registered Member #1062 Joined: Tue Oct 16 2007, 02:01AM
Location:
Posts: 1529

Whats the 2nd to last pic of?

OT: How much resolution is your camera? O_O

Hon1nbo

Fri Dec 05 2008, 01:41AM

Registered Member #902 Joined: Sun Jul 15 2007, 08:17PM
Location: Pacific Northwest USA
Posts: 1042

I asked you to guess what that pic was, it's for the junk box!

and some pics are really high res and others aren't (change of cameras, but the main thing is that to make the file size proper, I cropped a VERY small sliver around some edges of the pics to make it fit under 2 megs, but I don't know if Vista expanded it to original size...

Firefox

Fri Dec 05 2008, 04:29AM

Registered Member #1389 Joined: Thu Mar 13 2008, 12:50AM
Location: Pittsburgh, PA
Posts: 346

DaJJHman, it looks like some sort of optical equipment, so I would have guess a laser of some sort? Or perhaps a sweet camera... perhaps a high speed camera?

Arcstarter

Fri Dec 05 2008, 04:47AM

Registered Member #1225 Joined: Sat Jan 12 2008, 01:24AM
Location: Beaumont, Texas, USA
Posts: 2253

Blew stuff up with the cap bank. Is was 12.5uf and 2kv(7650 max voltage which is 365joules) which is 25 joules.

First one is all the transistor/mosfets i blew up(they where dead, don't worry). First is all of the semiconductors i blew, the second and third are HOT's(horizontal output transistors, in televisions) the fourth is a 20amp 500volt mosfet, the fifth and sixth are two semiconductors(idk what they are, they are freaking old, out of a tv) on a circuit board. In the fifth pic, the semiconductor on the left, the front is still intact, and the right one had all the black stuff blown off. They are the thinks with the 'tabs' that mount them to the heatsink. The sixth pic is the same semiconductors' back side. The last pic is the HOT in the third pic, next to a scr with the same exact package.

It was great fun ;).

1228452417 1225 FT6000 25 Joule Cap Discharge Pics 001

1228452417 1225 FT6000 25 Joule Cap Discharge Pics 002

1228452417 1225 FT6000 25 Joule Cap Discharge Pics 003

1228452417 1225 FT6000 25 Joule Cap Discharge Pics 004

1228452417 1225 FT6000 25 Joule Cap Discharge Pics 005

1228452417 1225 FT6000 25 Joule Cap Discharge Pics 006

1228452417 1225 FT6000 25 Joule Cap Discharge Pics 007

rp181

Fri Dec 05 2008, 04:52AM

Registered Member #1062 Joined: Tue Oct 16 2007, 02:01AM
Location:
Posts: 1529

A random slew of parts made to look cool and fetch a high price? :D

Looks like one of the hologram projectors. Doubt ude want to put that in a junk box though :)

Experimentonomen

Fri Dec 05 2008, 10:58AM

Registered Member #941 Joined: Sun Aug 05 2007, 10:09AM
Location: in a swedish junk pile
Posts: 497

Dunno if its cool or not:

Heres a vid:

Finn Hammer

Fri Dec 05 2008, 03:22PM

Registered Member #205 Joined: Sat Feb 18 2006, 11:59AM
Location: SkÃ¸rping, Denmark
Posts: 741

Before Daniel Uhrenholt left to his new job at Aalborg University Robot Lab, this was the last thing he made on the wire edm. machine at his old job:
Cooling finns out of solid copper for the opto`s for the CCPS.
Blowing up opto`s showed us, that the black spot was on the belly of the chip. So the heatsink is designed to suck heat out between the legs of the chip. They suck like a million dollar wh*re.
The opto`s like it. Wouldn`t you?

Cheers, Finn Hammer

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