If you need assistance, please send an email to forum at 4hv dot org. To ensure your email is not marked as spam, please include the phrase "4hv help" in the subject line. You can also find assistance via IRC, at irc.shadowworld.net, room #hvcomm.
Support 4hv.org!
Donate:
4hv.org is hosted on a dedicated server. Unfortunately, this server costs and we rely on the help of site members to keep 4hv.org running. Please consider donating. We will place your name on the thanks list and you'll be helping to keep 4hv.org alive and free for everyone. Members whose names appear in red bold have donated recently. Green bold denotes those who have recently donated to keep the server carbon neutral.
Special Thanks To:
Aaron Holmes
Aaron Wheeler
Adam Horden
Alan Scrimgeour
Andre
Andrew Haynes
Anonymous000
asabase
Austin Weil
barney
Barry
Bert Hickman
Bill Kukowski
Blitzorn
Brandon Paradelas
Bruce Bowling
BubeeMike
Byong Park
Cesiumsponge
Chris F.
Chris Hooper
Corey Worthington
Derek Woodroffe
Dalus
Dan Strother
Daniel Davis
Daniel Uhrenholt
datasheetarchive
Dave Billington
Dave Marshall
David F.
Dennis Rogers
drelectrix
Dr. John Gudenas
Dr. Spark
E.TexasTesla
eastvoltresearch
Eirik Taylor
Erik Dyakov
Erlend^SE
Finn Hammer
Firebug24k
GalliumMan
Gary Peterson
George Slade
GhostNull
Gordon Mcknight
Graham Armitage
Grant
GreySoul
Henry H
IamSmooth
In memory of Leo Powning
Jacob Cash
James Howells
James Pawson
Jeff Greenfield
Jeff Thomas
Jesse Frost
Jim Mitchell
jlr134
Joe Mastroianni
John Forcina
John Oberg
John Willcutt
Jon Newcomb
klugesmith
Leslie Wright
Lutz Hoffman
Mads Barnkob
Martin King
Mats Karlsson
Matt Gibson
Matthew Guidry
mbd
Michael D'Angelo
Mikkel
mileswaldron
mister_rf
Neil Foster
Nick de Smith
Nick Soroka
nicklenorp
Nik
Norman Stanley
Patrick Coleman
Paul Brodie
Paul Jordan
Paul Montgomery
Ped
Peter Krogen
Peter Terren
PhilGood
Richard Feldman
Robert Bush
Royce Bailey
Scott Fusare
Scott Newman
smiffy
Stella
Steven Busic
Steve Conner
Steve Jones
Steve Ward
Sulaiman
Thomas Coyle
Thomas A. Wallace
Thomas W
Timo
Torch
Ulf Jonsson
vasil
Vaxian
vladi mazzilli
wastehl
Weston
William Kim
William N.
William Stehl
Wesley Venis
The aforementioned have contributed financially to the continuing triumph of 4hv.org. They are deserving of my most heartfelt thanks.
Registered Member #103
Joined: Thu Feb 09 2006, 08:16PM
Location: Derby, UK
Posts: 845
omg it's full of microcontrollers
we have a 'semiconductor graveyard' at work with much of the same. If I get a few moments when there's no-one around I'll try and get a couple of photos...
edit - someone reply for us so I can add pics... I can't be ar$ed to upload/link
Registered Member #618
Joined: Sat Mar 31 2007, 04:15AM
Location: Us-Great Lakes
Posts: 628
Yea, when I got it out of the factory box I thought the guy screwed me over then I plugged in the stuff and it works fine, as far as using it, the waveforms are pretty crisp it looks like it has maybe 1mv of Noisebut it could also be the draw\rendering of the line. BUt hey $350 US I think is a pure steal, since a good textronic costs like 700+.
Registered Member #103
Joined: Thu Feb 09 2006, 08:16PM
Location: Derby, UK
Posts: 845
I'm looking out for a decent TDS220-ish scope at the moment. We use those at work and they seem invincible despite the lightness, I'd also be interested to know if your clone hangs in there after some serious use, or drops out of cal etc.
We actually have some fake Fluke meters there, not much of a comparison but they do actually seem to be very good both in build quality and performance. I didn't believe they were fake until I cracked open the clamp meter to replace the battery.
BTW, here's the most blown up brick junk I could find in the inverter room, it's was a 200A/1.2Kv halfbridge module
Registered Member #618
Joined: Sat Mar 31 2007, 04:15AM
Location: Us-Great Lakes
Posts: 628
Not sure how serious of use you want to know about nor Do I know how serious of use I'll be using it for, It's got 2 rather useful features I've found so far, and thats factory reset and self Calibration, but After some time of use I'll report on how it handles.
Registered Member #16
Joined: Thu Feb 02 2006, 02:22PM
Location: New Wilmington, PA
Posts: 554
Here's a 15 second exposure of the International Space Station at about magnitude -1.3 in Georgia this evening. At the time this photo was taken I'd estimate it was about 15-18 degrees above the horizon and moving away. There is a bit of 'jiggle' in the photo. I need a better tripod.
Colors have been tweaked a little bit for best contrast.
Shot at ISO 200 (hence the poor exposure, still learning the camera). This is with my Olympus E-510 DSLR and a 15-44mm Zuiko lens at about 20mm.
Two nights ago it was >-3 magnitude, and was so bright that it caught my eye through the trees. At that time the shuttle was trailing the ISS by about 20 seconds and was also very visible. Unfortunately I didn't have enough warning to get my camera prepared.
This site is powered by e107, which is released under the GNU GPL License. All work on this site, except where otherwise noted, is licensed under a Creative Commons Attribution-ShareAlike 2.5 License. By submitting any information to this site, you agree that anything submitted will be so licensed. Please read our Disclaimer and Policies page for information on your rights and responsibilities regarding this site.
Post Your Cool Pic Here!
