• You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.

Just finished my new adjustable power supply!

mr_fx

Sr. Member
Oct 8, 2011
1,536
172
173
Kansas City
built from an old computer power supply that cost my buddy $535 6 or 7 years ago the company that makes it is PC Power and Cooling... they make some of the BEST power supplies out there...

this unit will auto select input voltages anywhere from 90-264 VAC / frequency 47-63Hz, has less than 0.5% ripple, voltage regulation stays within 1% no matter what and has a nearly 80% efficiency
rating. it is good for around 34 amps @ 100% duty cycle and will run up to 40 amps for short periods fan is upgraded and VERY quiet... best part is that the fan barely moves until you get the unit cookin'...

It will out put anywhere from 3-9v on the 5v leg at a respectable 40 amps... or 10.5-14.10v on the 12v leg @ 34 amp

might consider adding some nice binding posts... might even just use some bolts...

also trying to locate the over voltage and over current protection so I can raise or remove that limit

 

ooops... tried to pull a little more juice out of it... the trick on PC power supplies (when using them as a bench power supply) is to load up to 5 volt leg... well I loaded it a little too much I guess... ooopsss... cause it not only blew the fuse on the power supply but it tripped a breaker and now the fuse blows instantly...

oh well right

I think I burned out the regulator
 

dxChat
Help Users
  • No one is chatting at the moment.
  • @ heartbreaker3473:
    Hello gentlemen and Ladies. I have the dreaded RCI-2990 receive issue where my radio gets distorted when people get close to my location. I found the C90 Capacitor, but I can not for the life of me find the C89 capacitor. Can or does anyone have a picture of the exact location of C89 ? Thank you in advance, Wes
  • @ AudioShockwav:
    Wes, it's better if you start a thread on the main forum, more people are going to see your question.
  • @ heartbreaker3473:
    Okay, sorry, will put in a forum
  • @ heartbreaker3473:
    I put it in the general disscution help area and started a new thread. Thank you for letting me know.