Welcome
Username or Email:

Password:


Missing Code




[ ]
[ ]
Online
  • Guests: 18
  • Members: 0
  • Newest Member: omjtest
  • Most ever online: 396
    Guests: 396, Members: 0 on 12 Jan : 12:51
Members Birthdays:
All today's birthdays', congrats!
Brendon (41)
El_Roberto (35)
EricTheCat (46)


Next birthdays
04/11 Jason (43)
04/12 JoeBonanno (40)
04/12 Mads Barnkob (43)
Contact
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.
Forums
4hv.org :: Forums :: Sale and Trade
« Previous topic | Next topic »   

Looking for Computer Grade Caps

Move Thread LAN_403
JKowalski
Tue Mar 29 2011, 11:48PM Print
JKowalski Registered Member #3595 Joined: Mon Jan 10 2011, 04:46AM
Location:
Posts: 26
Hi,

I am looking for a couple screw terminal computer grade caps, 250-400VDC 1000-5000uF. If you guys have any that you don't need anymore, or know of some good deals online...

Hopefully as cheap as possible, and not significantly old stock.

I might have something you want to trade, also, I have a bunch of random parts (including a C444M 600V 1000A SCR, various large motors, a 100W 470ohm resistor, etc.)
Back to top
HazzWold 1993
Wed Mar 30 2011, 01:56AM
HazzWold 1993 Registered Member #2563 Joined: Mon Dec 21 2009, 10:17AM
Location: Australia
Posts: 280
Three things
1 - I am fairly sure you need 15 posts in order to sell.
2 - You need to state where you are.
3 - Where are you? As I do have a large box of capacitors all screw terminal that may suit your needs, however the dilemna then arises that i pointed out in number 2.
Back to top
JKowalski
Wed Mar 30 2011, 02:49AM
JKowalski Registered Member #3595 Joined: Mon Jan 10 2011, 04:46AM
Location:
Posts: 26
HazzWold 1993 wrote ...

Three things
1 - I am fairly sure you need 15 posts in order to sell.
2 - You need to state where you are.
3 - Where are you? As I do have a large box of capacitors all screw terminal that may suit your needs, however the dilemna then arises that i pointed out in number 2.

Ah, dam, I thought I had 15 posts already. Sorry about that.

I'm in Arizona. I was kind of testing the waters, also sorry about the minimal details.

Can you give me info on the caps, if you are still open to selling?

Thanks


Back to top
Wolfram
Wed Mar 30 2011, 10:42AM
Wolfram Registered Member #33 Joined: Sat Feb 04 2006, 01:31PM
Location: Norway
Posts: 971
HazzWold 1993 wrote ...

1 - I am fairly sure you need 15 posts in order to sell.

That's true, but he isn't trying to sell anything.

Also

F. Let the moderators do their job. If you're not a moderator, you shouldn't be accusing new members of not having read the rules, or of not Googling properly.
Back to top
HazzWold 1993
Wed Mar 30 2011, 09:48PM
HazzWold 1993 Registered Member #2563 Joined: Mon Dec 21 2009, 10:17AM
Location: Australia
Posts: 280
Anders M. wrote ...

HazzWold 1993 wrote ...

1 - I am fairly sure you need 15 posts in order to sell.

That's true, but he isn't trying to sell anything.

Also

F. Let the moderators do their job. If you're not a moderator, you shouldn't be accusing new members of not having read the rules, or of not Googling properly.



Ah my mistake, apologies to the moderator and the OP.

However to JKowalski I can get the ratings for all the capacitors tonight if you so wish, I do live in Australia though, so ill let you decide if that is too far. From memory the largest I have is 5x 4700uf 450VDC capacitors. but there is quite a variety so if you find it worth your while I will check, you may find a source closer to home.
Back to top
JKowalski
Sun Apr 03 2011, 05:23PM
JKowalski Registered Member #3595 Joined: Mon Jan 10 2011, 04:46AM
Location:
Posts: 26
HazzWold 1993 wrote ...

Anders M. wrote ...

HazzWold 1993 wrote ...

1 - I am fairly sure you need 15 posts in order to sell.

That's true, but he isn't trying to sell anything.

Also

F. Let the moderators do their job. If you're not a moderator, you shouldn't be accusing new members of not having read the rules, or of not Googling properly.



Ah my mistake, apologies to the moderator and the OP.

However to JKowalski I can get the ratings for all the capacitors tonight if you so wish, I do live in Australia though, so ill let you decide if that is too far. From memory the largest I have is 5x 4700uf 450VDC capacitors. but there is quite a variety so if you find it worth your while I will check, you may find a source closer to home.


That is pretty far. I suppose it depends on how much you are willing to part with them for?

Can't find anything immediately local anyways... Still lookin.

Also, how old would you say the typical computer grade capacitor can be and still be considered good condition?
Back to top
Adam Munich
Sun Apr 03 2011, 07:34PM
Adam Munich Registered Member #2893 Joined: Tue Jun 01 2010, 09:25PM
Location: Cali-forn. i. a.
Posts: 2242
That depends on what you define "good condition" as.
Back to top
Wolfram
Sun Apr 03 2011, 08:39PM
Wolfram Registered Member #33 Joined: Sat Feb 04 2006, 01:31PM
Location: Norway
Posts: 971
Grenadier wrote ...

That depends on what you define "good condition" as.

Within the datasheet specification?

I know electrolytics deteriorate over time, but I don't know exactly how long a typical one would last. It also depends on how they have been stored, and how they have been used (and abused), I know this can make a huge difference, especially storage temperature. Personally, I wouldn't blindly trust any capacitor over 15-20 years old without measuring it first. Of course it also depends on your application, how big demands it puts on your capacitor and what sort of reliability you need. An older capacitor might have higher leakage current or higher internal resistance, but that might not matter in your circuit.
Back to top
JKowalski
Sun Apr 03 2011, 08:55PM
JKowalski Registered Member #3595 Joined: Mon Jan 10 2011, 04:46AM
Location:
Posts: 26
Anders M. wrote ...

Grenadier wrote ...

That depends on what you define "good condition" as.

Within the datasheet specification?


Basically. Ones that will last for a while longer (~5-10 years at minimum) without significant decreases in performance.

As far as the application, I'll probably reuse them in a number of different projects. So think generally. Though their main use will probably be as reservoir caps.
Back to top

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

Go to:

Powered by e107 Forum System
 
Legal Information
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.