Convert PC Power Supplies for use by Ham Radio Part II

[cheezst8ke]

I am doing this to a PSU. I read on the page that I was reading from that if anyone has a power supply from a Dell computer, they use a different wire colors on the MB connector than the standard ATX wire colors the MB connector. If anyone has a Dell power supply that is from 1996 to 2000, be careful converting it. Just wanted to say this because I seen the post by paraglidermx that he couldn't get the PSU to work.

[Beaksterboy]

I have just done this myself based on what I learned in this video. The PSU I used was new so a bit different. I documented all the steps I took on the Transmission1 forum in the Home Brew hardware section. Have a look there for my post, my username is Beakster

[paraglidermx]

Were do u get a trim resistor and how do you wrap the wire around the torron?

Were on the board does the resistor get soldered?? Please answer these ques.I need 13.8v. Tommy

[paraglidermx]

I came across several supplies from old dell white boxes,they have no green wire...just grey,purple,white,blue.I cant seem to trick it into running no matter what I try. Any Ideas mate.They worked fine in the towers.

[cheezst8ke]

@paraglidermx Dell power supplies from 1996 to 2000 use a different wire color code than the standard ATX wire color code. That is probably why you didn't see the green wire. Check the year on the PSU.

[9DragonMaster]

thanks for clearing up the green being attached to black, i work on mopeds and i'm willing to bet thats going to help =D

[mrdinx]

What value of 10-turn pot did you use?

[delawarej]

@mrdinx Scotty who is actually doing these wrote: 50K pot works fine set for about 26K should give enough trim for the voltage he wants.

[xlordo]

Dude, can u pls share the shematic to do this ?

[xlordbr]

can u pls upload a schematic of this mod ???

[xlordbr]

can u pls upload a schematic of this mod??

i tried to understand what to do but i cant :(

[haansgruber]

Whatever you do .......

DON'T LET THE SMOKE OUT!

peace :)

[haansgruber]

Very good Bob

73's to you and the group

73'

RG8U

[gerryrat]

Great idea. I have a 500w win power power supply from a casing which is dated at 2006 but the wire colours seem to differ from the ones you show here. It also has male and female input sockets which add to my confusion. I am not brilliant at electronics but am keen to create my own 30 amp supply for my radio can anyone advise?

[bkisme]

this is actually rather smart as computer power supplies are rather plentiful and cheap while ham radio power supplies are rather overpriced. (then again, what kind of radio equipment isn't...)

As a precaution, it would be wise to use a power supply that you can trust. Some PC PSUs can be very tricky. I had a PSU with a voltage that slowly decreased until it couldn't provide sufficient power to my 2nd computer. :p

I'm not a ham myself, but my father is. I'm more into computers :)

[Ocnila]

Good video I really liked it. KR8U

[n1zw]

Very helpful this video presentation. Will be doing one for myself for 2m mobile use at home. Thanks and best 73, n1zw

[tubebloke1701]

very good indeed

[dustyjeans59]

you said " connect the green wire with black " i see you have a green and blue hooked up , or is that an optical illution ?? thanks and im wrking on my pwr supply now for 2 mtr mobil use in house thanks n5omv 73

[TCDIL95]

no if you actualy look closley, you can see that the green and black are joined.

[azraaell]

nice vid though very intuative

[azraaell]

lol so this is what george w bush does with his time lool

[VictoreCelia]

very good video...