Post Your Cool Pic Here! / General Chatting / Forums

Forums

4hv.org :: Forums :: General Chatting

« Previous topic | Next topic »

Post Your Cool Pic Here!

first previous 191 192 193 194 next last

Move Thread

LAN_403

Dragon64

Tue Nov 24 2009, 03:49AM

Registered Member #1438 Joined: Sat Apr 12 2008, 12:57AM
Location: Canada
Posts: 218

Man, being away for many months changed a lot of stuff x_X

-2 Plain old magnetron-

-My new HD Camera (Yay, I can record in HD now)-

-Toroidal Transformer destined to be wound-

-Super cheap $4 well working magnetic stirrer-

-My backyard on gloomy evening-

Hazmatt_(The Underdog)

Tue Nov 24 2009, 07:45AM

Registered Member #135 Joined: Sat Feb 11 2006, 12:06AM
Location: Anywhere is fine
Posts: 1735

Some of the stuff I'm still working on, 30KHz to 500KHz 200W amp.

20W Class A Preamp driver, Broadband non-isolated and isolated Phase Splitter, and 200W Brick unit here. I can't really qualify it for full 200W because the meter goes to 150W, but I believe it will go close to 200W peak power. It's probably not 200W throughout its useful bandwidth, but I'll have to see where this leads me, it should prove to be interesting. I'd like to see this whole thing setup as a finalized amp, sweep it, and see how it measures up.

I was playing with the amp a little last night and set part of the wood base on fire! XD heheh. Gotta be careful with this RF energy now that its getting to big numbers!
What I thought was interesting here is that being driven from a coupling loop, the TC secondary is absorbing a particular amount of energy and at a critical point, forces the driving loop into heavy compression. I want to study this saturated mode a bit more further down the road. Also I want to make a horrendous power amplifier right now.. heheheh. The one I have right now is 2 pair, and I want to double that! Should prove to be very painful when it comes to RF burns.
I would also like to further investigate something very interesting, the coil's particular frequency is 256KHz, but driving at 175KHz causes a harmonic emission at 256KHz with a peak much greater then the source peak. I can't really do much about it now because the amp gets very hot within my time limit, but hopefully future improvements will allow me more time to play.
.

Killa-X

Fri Nov 27 2009, 02:55AM

Registered Member #1643 Joined: Mon Aug 18 2008, 06:10PM
Location:
Posts: 1039

Heh..Electrothermal guns are fun..

Upgraded to PVC

Now, 200V.

It appears, one string in that 200V picture went off the view of camera. No load, but man was that a loud bang. I have shot marbles at 200V and they made a mark in my wall 7ft away, at a 45 angle, then the bounce off the wall, and hit my desk.

32 camera capacitors, charged to 150V...discharged to a small peice of foil, on 2 copper contacts, in the PVC pipe..most shots here had a marble being fired.

Killa-X

Mon Dec 07 2009, 09:25PM

Registered Member #1643 Joined: Mon Aug 18 2008, 06:10PM
Location:
Posts: 1039

Guess I get 2 in the row..Use to be busy here! Got the mail today :P

Got them used/pulled from BG Micro, 4.45 each. 450V 2400uf. Not tested yet but they all seem to hold a 12V charge for a very....very long time.

Hon1nbo

Thu Dec 17 2009, 07:23PM

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

I always wondered what ten thousand pennies looks like, I guess it has to do with my obsession for ridiculous numbers:

[br

EDIT: I did a little weighing, and these things LITERALLY weigh as much as they are worth: they weigh 61 pounds, they are worth 61 pounds - I love the way numbers work out!

Dr. Dark Current

Thu Dec 17 2009, 07:37PM

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

@DaJJHman: lol

125 watt mercury vapor blacklight bulb, produces ridiculous amounts of UV and a lot of fun

lpfthings

Mon Dec 21 2009, 12:55PM

Registered Member #1361 Joined: Thu Feb 28 2008, 10:57AM
Location: Cairns, Australia
Posts: 305

I had one of those explode overhead once, had a nice glass shower, however the main filament remained in place blasting me with an intense white light, which caused me problems when I was trying to find the switch to turn it off! :-/

My new tornado machine, it's 1.8 metres tall (Will make a seperate thread for this once I have completely finished it)

IMG 1895s

The interface:
20nado

Robert2

Mon Dec 21 2009, 02:58PM

Registered Member #1773 Joined: Tue Oct 21 2008, 06:56PM
Location: Poland
Posts: 93

My new x-ray lamp.
She have :

:(

Jea she work! When i give 60-70KV i can't see any spark and light inside lamp!

Robert2

Tue Dec 22 2009, 04:36PM

Registered Member #1773 Joined: Tue Oct 21 2008, 06:56PM
Location: Poland
Posts: 93

She looks good

Renesis

Tue Dec 22 2009, 07:57PM

Registered Member #2028 Joined: Mon Mar 16 2009, 08:13PM
Location: Norway
Posts: 319

lpfthings wrote ...

(Will make a seperate thread for this once I have completely finished it)

Im looking forward to that, cause this thing looks awesome. Do you use some thin liquid or is that just plain air?

first previous 191 192 193 194 next last

Moderator(s): Chris Russell, Noelle, Alex, Tesladownunder, Dave Marshall, Dave Billington, Bjørn, Steve Conner, Wolfram, Kizmo, Mads Barnkob