plasticjoe
Posts: 256
Joined: 8/28/2002
From: Huber Heights,
OH, USA
Status: offline
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Couldn't find my link again, sorry about the delay. Just saw your post. I have built 2 so far. Take the computer power supply out of the computer, leave all the plugs on it and even the on/off switch ( you can use that as an on off switch on the powersupply later )
Take a Hard Drive or something that uses the computer's power ( floppy drive, cd, HD ) just to give it enough draw to kick on, use your voltmeter and test which leads are +12 and -12 and +5 and -5 and keep the +'s aside as many as you want to have, and put the - voltage leads aside also.
Unplug the power supply and take the cover off, remove all the - voltage leads and leave a black ( ground wire ) for every power lead you need. Leave one 5 volt lead and a ground for your load lead.Clip off the un needed leads off flush to the board,so they won't touch one another and then thread all the leads you are keeping out of the cover. Take a 10 watt/ 10 Ohm ceramic resistor solder the 5 volt lead and ground to each end and zip tie it to the side of the power supply, being sure they don't touch the power supply. It will get warm to the touch that's about it, but gives it enough of a load to kick on. Then devise a way to make power posts negative and positive ( I used cutoff Teflon from work and nuts and screws to make the posts and the Teflon is a great insulator.
I have used mine with supervision I may add, and it works great, as with anything "home built" and 110V and plugged into the house/garage, I keep a sharp eye on it, just to be safe. also when testing it, I made sure that it was plugged into a breakered powerstrip. As extra caution, I use it with a powerstrip also. Hope this helps, I think I covered most of the bases on this.
< Message edited by user -- 05/05/2003 16:50:41 >
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