Video Archive         Recent Topics      
YMR logo

You are here:  Your Model Railway Club > Getting You Started. > Electrics - DC > Power supplie for accessories To bottom of page
                 

 Moderated by: Spurno Page:    1  2  Next Page Last Page  
Start New Topic Reply Printer Friendly

Power supplie for accessories - Electrics - DC - Getting You Started. - Your Model Railway Club
AuthorPost
 Posted: Wed Dec 5th, 2007 07:56 pm
PMQuoteReply
link to this 1st post
Geebs
Former Member
 

Joined: 
Location:  
Posts: 
Status: 
Offline

My photos:
view photos in Gallery
view photos as slides

Many of you probably already use them, but I think that the best power devive for powering accessories, is a computer PSU (Power Supply Unit).
You can buy 400W ones off [http://www.dabs.com] for about 20, they are handy because you get 12v rails 3.3v rails, and can supply you with 18 amps worth of current, the only thing is you have to find the 'power on wires' in the connector that clips onto your motherboard. doesn't take long just short two of the wires out at a time till you find them, then there leave a wire shorting them or put a switch in. Works a treat!! :D :D

sorry if this has been mentioned before.[/url]

Back To Top PMQuoteReply

 Posted: Wed Dec 5th, 2007 08:02 pm
PMQuoteReply
link to this 2nd post
Robert
Deceased Member


Joined: Sat Oct 13th, 2007
Location: Benidorm, Alicante, Spain
Posts: 12454
Status: 
Offline

My photos:
view photos in Gallery
view photos as slides

That's the first time for me that I have seen that idea put forward Geebs. Sounds great although I'm not quite sure about this shorting wires out two at a time. Usually shorting things out leads to disaster for me. :roll: :cry:



____________________
The time in Spain is :


Barchester
Back To Top PMQuoteReply

 Posted: Wed Dec 5th, 2007 08:03 pm
PMQuoteReply
link to this 3rd post
Perry
Erstwhile scratchbuilder


Joined: Sun Oct 14th, 2007
Location: United Kingdom
Posts: 2657
Status: 
Offline

My photos:
view photos in Gallery
view photos as slides

Handy hint Geebs, but "shorting two of the wires" sounds a bit drastic especially with 18 amps on offer. :shock: Is there a safer way of dicovering the voltages and polarities, perhaps? I guess a multimeter would do the trick, but not everyone has access to one. I would have thought the connectors would be standard so that any PSU can be fitted in any computer. After all, they only plug in the mother-board.

Wizard - are you reading this? Perhaps you can tell us which wires are which, please?

Perry



____________________
Due to cutbacks, the light at the end of the tunnel has been switched off.
Back To Top PMQuoteReply

 Posted: Wed Dec 5th, 2007 08:07 pm
PMQuoteReply
link to this 4th post
Robert
Deceased Member


Joined: Sat Oct 13th, 2007
Location: Benidorm, Alicante, Spain
Posts: 12454
Status: 
Offline

My photos:
view photos in Gallery
view photos as slides

Yeah Perry, 18 amps, that's a lot of oomph, gawd knows what it would do to what little hair I have left. :roll: :lol: :wink:



____________________
The time in Spain is :


Barchester
Back To Top PMQuoteReply

 Posted: Wed Dec 5th, 2007 08:25 pm
PMQuoteReply
link to this 5th post
Geebs
Former Member
 

Joined: 
Location:  
Posts: 
Status: 
Offline

My photos:
view photos in Gallery
view photos as slides

Yea its perfectly safe to short the wires till u find the switch on ones, all that will happen is u might see a spark, but then the unit will automatically shut down, and u'll just have to unplug it and plug back in.

Alternatively go to the manufacturers website and download the pin out diagram, it will tell you and also the voltages of the wires.

Back To Top PMQuoteReply

 Posted: Wed Dec 5th, 2007 08:29 pm
PMQuoteReply
link to this 6th post
Perry
Erstwhile scratchbuilder


Joined: Sun Oct 14th, 2007
Location: United Kingdom
Posts: 2657
Status: 
Offline

My photos:
view photos in Gallery
view photos as slides

You'll certainly find out if the cut-out works properly! You'll probably find out even quicker if it doesn't!!!! :? :shock:

Perry



____________________
Due to cutbacks, the light at the end of the tunnel has been switched off.
Back To Top PMQuoteReply

 Posted: Wed Dec 5th, 2007 09:56 pm
PMQuoteReply
link to this 7th post
Robert
Deceased Member


Joined: Sat Oct 13th, 2007
Location: Benidorm, Alicante, Spain
Posts: 12454
Status: 
Offline

My photos:
view photos in Gallery
view photos as slides

:lol: :lol: :lol: :lol: :lol: :lol:
You crease me up Perry.



____________________
The time in Spain is :


Barchester
Back To Top PMQuoteReply

 Posted: Wed Dec 5th, 2007 11:25 pm
PMQuoteReply
link to this 8th post
owen69
Former Member
 

Joined: 
Location:  
Posts: 
Status: 
Offline

My photos:
view photos in Gallery
view photos as slides

so now we all know why the younsters have spikey hair styles!!!
no multi metres.
:oops: :oops: :lol: :lol: :lol: :lol: :lol: 8)

Back To Top PMQuoteReply

 Posted: Thu Dec 6th, 2007 12:23 am
PMQuoteReply
link to this 9th post
phill
Hello


Joined: Sat Oct 13th, 2007
Location: Lancing West Sussex, United Kingdom
Posts: 6496
Status: 
Offline

My photos:
view photos in Gallery
view photos as slides

Gawd shorting wires :shock: , the mad professor springs to mind :?
Phill

Back To Top PMQuoteReply

 Posted: Thu Dec 6th, 2007 04:48 pm
PMQuoteReply
link to this 10th post
sparky
Member
 

Joined: Thu Oct 18th, 2007
Location: Hitchin Herts, United Kingdom
Posts: 2570
Status: 
Offline

My photos:
view photos in Gallery
view photos as slides

Any pics of this geeb, for us thicko,s? Not the spikey hair the power unit. :shock:



____________________
reg
Back To Top PMQuoteReply

 Posted: Thu Dec 6th, 2007 05:04 pm
PMQuoteReply
link to this 11th post
rector
Now where did I put that...?


Joined: Sat Oct 13th, 2007
Location: New York USA
Posts: 3952
Status: 
Offline

My photos:
view photos in Gallery
view photos as slides

I think a video would be better :!: :lol: :lol:



____________________
Tim. Cleric and artist, finding his railway modelling stuff after too long in the wilderness.
Back To Top PMQuoteReply

 Posted: Thu Dec 6th, 2007 05:06 pm
PMQuoteReply
link to this 12th post
sparky
Member
 

Joined: Thu Oct 18th, 2007
Location: Hitchin Herts, United Kingdom
Posts: 2570
Status: 
Offline

My photos:
view photos in Gallery
view photos as slides

yeah i like those films of explosions in slow motiom :D



____________________
reg
Back To Top PMQuoteReply

 Posted: Thu Dec 6th, 2007 05:14 pm
PMQuoteReply
link to this 13th post
Perry
Erstwhile scratchbuilder


Joined: Sun Oct 14th, 2007
Location: United Kingdom
Posts: 2657
Status: 
Offline

My photos:
view photos in Gallery
view photos as slides

This is the kind of thing he's talking about:

http://www.it-station.co.uk/images/pcguide/psu.jpg

They are easy enough to get hold of from anyone who's scrapping an old computer. Try your local recycling plant! It doesn't matter if the computer is knackered as long as the PSU (Power Supply Unit) works OK.

I still think I'm going to stick to the little 6 volt units made to power small electrical items though. I have several of these laying about.

Perry



____________________
Due to cutbacks, the light at the end of the tunnel has been switched off.
Back To Top PMQuoteReply

 Posted: Thu Dec 6th, 2007 07:24 pm
PMQuoteReply
link to this 14th post
Ken
Member


Joined: Sun Oct 21st, 2007
Location: Okehampton, Devon., United Kingdom
Posts: 1338
Status: 
Offline

My photos:
view photos in Gallery
view photos as slides

[quote="Geebs"]Yea its perfectly safe to short the wires till u find the switch on ones........
I've heard of getting "caught short" and often wondered what it meant!!!!! What an electrifying statement!
Ken



____________________
'It don't mean a thing if it ain't got that Swing'
Back To Top PMQuoteReply

 Posted: Thu Dec 6th, 2007 08:40 pm
PMQuoteReply
link to this 15th post
dermotkelly
Former Member
 

Joined: 
Location:  
Posts: 
Status: 
Offline

My photos:
view photos in Gallery
view photos as slides

The science teacher in me says 18A shorted could get pretty hot. Its a good idea in principle, but if you dont know what you're doing leave the transformer alone. Remember 240V goes in. I know it should cut out, but I'd rather have a nice double insulated casing.

Back To Top PMQuoteReply

 Posted: Thu Dec 6th, 2007 09:04 pm
PMQuoteReply
link to this 16th post
Perry
Erstwhile scratchbuilder


Joined: Sun Oct 14th, 2007
Location: United Kingdom
Posts: 2657
Status: 
Offline

My photos:
view photos in Gallery
view photos as slides

How true. :?

I'd want that metal casing well insulated and earthed too. On the face of it, this doesn't seem a bad idea for plenty of cheap power, but the safety aspect leaves a lot to be desired. 18 amps is a lot of juice, and it isn't the volts that do the damage; you've guessed it - it's the amps!

Perry



____________________
Due to cutbacks, the light at the end of the tunnel has been switched off.
Back To Top PMQuoteReply

 Posted: Thu Dec 6th, 2007 09:05 pm
PMQuoteReply
link to this 17th post
henryparrot
Former Member
 

Joined: 
Location:  
Posts: 
Status: 
Offline

My photos:
view photos in Gallery
view photos as slides

Thi link below could actually save geebs life or any other members who was intending to try his method of testing to be far it is a cheep way of getting power that is available because tons of them just get thrown in the bin
cheers Brian
http://www.wikihow.com/Convert-a-Computer-ATX-Power-Supply-to-a-Lab-Power-Supply

Back To Top PMQuoteReply

 Posted: Thu Dec 6th, 2007 09:10 pm
PMQuoteReply
link to this 18th post
Robert
Deceased Member


Joined: Sat Oct 13th, 2007
Location: Benidorm, Alicante, Spain
Posts: 12454
Status: 
Offline

My photos:
view photos in Gallery
view photos as slides

A cracking link Brian, just what was needed. Yet another one for the Index and the Barchester web pages.



____________________
The time in Spain is :


Barchester
Back To Top PMQuoteReply

 Posted: Thu Dec 6th, 2007 09:28 pm
PMQuoteReply
link to this 19th post
Geebs
Former Member
 

Joined: 
Location:  
Posts: 
Status: 
Offline

My photos:
view photos in Gallery
view photos as slides

yea brilliant link, tells you how to do it safely, but if you don't see me on again its because I did it my way again :lol: :lol: :lol: :lol:

Back To Top PMQuoteReply

 Posted: Thu Dec 6th, 2007 09:35 pm
PMQuoteReply
link to this 20th post
Perry
Erstwhile scratchbuilder


Joined: Sun Oct 14th, 2007
Location: United Kingdom
Posts: 2657
Status: 
Offline

My photos:
view photos in Gallery
view photos as slides

:roll: :lol: :lol: :lol: :lol:

Perry



____________________
Due to cutbacks, the light at the end of the tunnel has been switched off.
Back To Top PMQuoteReply

This is topic ID = 871     Current time is 09:47 pm Page:    1  2  Next Page Last Page    
You are here:  Your Model Railway Club > Getting You Started. > Electrics - DC > Power supplie for accessories
You can type a quick reply to this topic here. Click in the box below to begin.

Or to reply to an individual post, or to include images, attachments and formatted text,
click the Quote or Reply buttons on each post above.

To start a new topic in this forum, click the Start New Topic button below.
To start a new topic in a different forum, click the Forum Jump drop-down list below.
Start New Topic


Back to top of page

           
15 Most Recent Topics

Problems with this web site? Please contact the Webmaster.

All material submitted to this web site is the responsibility of the respective contributor. By submitting material to this web site you acknowledge that you accept full responsibility for the material submitted.
Unless stated otherwise, all the material displayed on this web site, including all text, photographs, drawings and other images, is copyright and the property of the respective contributor. Registered members are welcome to use it for their own personal non-commercial modelmaking purposes. It must not be reproduced or re-published elsewhere in any form, or used commercially, without first obtaining the owner's express permission.
The owner of this web site may edit, modify or remove any content at any time without giving notice or reason.    © 2008

                 

Recent Topics Back to top of page

Powered by UltraBB 1.15 Copyright © 2007-2011 by Jim Hale and Data 1 Systems. Page design copyright © 2008-2013 Martin Wynne. Photo gallery copyright © 2009 David Williams.