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

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klugesmith
Fri Jan 08 2010, 08:56PM
klugesmith Registered Member #2099 Joined: Wed Apr 29 2009, 12:22AM
Location: Los Altos, California
Posts: 1716
I think this photo qualifies as cool, in the literal sense. My wife spotted it online. I think the caption said:
"Photo of snow-covered Britain by Terra satellite, January 7, 2010."
Am I mistaken, or is Ireland still green?

10
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Steve Conner
Sat Jan 09 2010, 10:44AM
Steve Conner Registered Member #30 Joined: Fri Feb 03 2006, 10:52AM
Location: Glasgow, Scotland
Posts: 6706
Yep, somehow southern Ireland has avoided the snow.

The picture is on the front page of most papers here. With cheesy headlines like "Great Brrr-itain"
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Nicko
Sun Jan 10 2010, 09:01PM
Nicko Registered Member #1334 Joined: Tue Feb 19 2008, 04:37PM
Location: Nr. London, UK
Posts: 615
It's not often we get snow here in the South of England, but we have about 12 inches and temperatures of down to -5C, which is almost unheard of in these parts...

Here's a shot of someone having fun! (he's a 4 y/o German Shorthaired Pointer, and has never seen real snow before...)

1263157276 1334 FT6000 P1020208
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Fabio
Sun Jan 10 2010, 09:48PM
Fabio Registered Member #122 Joined: Fri Feb 10 2006, 12:55PM
Location: Milano Italy
Posts: 148
Hi All!

This is the new gadget i bought today on a local hamfest for 20 euros! smile

This is a variable HV power supply capable of 0-6kV output, both positive, negative, alternate, positive pulsed and negative pulsed.

is almost entirely electromecanic (there is a VARIAC to regulate the output voltage, a rugged rotary switch to select the capacitors and two robust relays to select the polarity and make the pulses) so is really easy to repair or modify! smile

Th


Th


Th


Th


Ciao!
Fabio

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Arcstarter
Mon Jan 11 2010, 12:07AM
Arcstarter Registered Member #1225 Joined: Sat Jan 12 2008, 01:24AM
Location: Beaumont, Texas, USA
Posts: 2253
@CoronaFix, nice little toy cheesey. What will you be using that for? I should make something like a lathe to hold glass. Maybe make glass stuff for a neat little hobby. If it didn't cost anything, i would!

@Nicko, snow is amazing, is it not?! Seen it twice here in Texas, beside that time it snowed maybe a few mm :P. The German Shorthaired Pointer sure seems to be having fun :). For some odd reason his/her coat looks almost like he/she is wearing... a coat :P.

@Fabio, nice! What wattage is it made for? Some 100-200 watts?
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Z28Fistergod
Mon Jan 11 2010, 02:47AM
Z28Fistergod Registered Member #2040 Joined: Fri Mar 20 2009, 10:13PM
Location: Fairfax VA
Posts: 180
Nicko wrote ...

It's not often we get snow here in the South of England, but we have about 12 inches and temperatures of down to -5C, which is almost unheard of in these parts...


You have a soft spot for imperial units? smile

Pictures of the PCB for my current ultra-top-secret-classified-at-an-echelon-above- reality project. There are is a TQFP and a TDFN package on the board, they have a 0.5mm spacing between centers!

Cimg0018
Cimg0020
Cimg0021
Cimg0023

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aonomus
Mon Jan 11 2010, 06:16AM
aonomus Registered Member #1497 Joined: Thu May 22 2008, 05:24AM
Location: Toronto, Ontario, Canada
Posts: 801
Z28: looks like an RF board with the stripline and place for a RF transistor?
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Z28Fistergod
Mon Jan 11 2010, 02:32PM
Z28Fistergod Registered Member #2040 Joined: Fri Mar 20 2009, 10:13PM
Location: Fairfax VA
Posts: 180
Those are transmission lines, but I don't have any discrete transistors on the board. I'm bad at keeping secrets so I'm going to shut up while I'm ahead.
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IntraWinding
Mon Jan 11 2010, 03:27PM
IntraWinding Registered Member #2261 Joined: Mon Aug 03 2009, 01:19AM
Location: London, UK
Posts: 581
Klugesmith wrote ...

I think this photo qualifies as cool, in the literal sense. My wife spotted it online. I think the caption said:
"Photo of snow-covered Britain by Terra satellite, January 7, 2010."
Am I mistaken, or is Ireland still green?

10



I just found the original high resolution image here Link2

.
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Experimentonomen
Tue Jan 12 2010, 03:27PM
Experimentonomen Registered Member #941 Joined: Sun Aug 05 2007, 10:09AM
Location: in a swedish junk pile
Posts: 497
Ionized air anyone ?
NdYAGlaserfires
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