Converting a HP DSP-600PB server power supply to run as a 12v 47A bench supply.
I've used several ATX supplies for radio use, but my latest aquisition of a Yaesu FT747GX needs over 20A. more than the 15A available from the ATX.
someone on the Hamradiodeals forum suggested a server supply, so a little googleing for info, and a glance at ebay got me a HP DSP-600PB for £13 delivered.......
there is no NEED to take the top off other than to remove the locking bar with the red knob shown at the top of this pic.
I used Futaba RC plugs to access the 12 pins. I COULD have soldered direct, but this was going to be awful fiddly, and I had a box of random Futaba bits......
so far I only want 4 of the 12 pins.
numbering them like this.....
4 & 8 together lower the fan speed.
6 & 10 together, and connected to the other two switch the whole thing on.
you COULD put a switch on there if you wanted.
I don't want one, so I just twisted those 4 wires together and soldered them
there are other things you can use the other pins for, so I'll keep those available, just not used now.
connecting to the spades is a little akward so I made some pins by stripping back some insulation.....
then tinning it to make it rigid so I could push it in between the spades and then soldering it in place.
1st QSO was with OE1LZA, Laila, who gave me an all clear on audio. 6 more QSOs around Europe mean all is fine and dandy.
thanks due to:
for the info I used to make this happen.