View Single Post
  #7   Report Post  
Old October 2nd 08, 09:29 AM posted to rec.radio.amateur.homebrew
raypsi raypsi is offline
external usenet poster
 
First recorded activity by RadioBanter: Jul 2008
Posts: 242
Default Switching power supplies question.

On Oct 1, 12:55*pm, terry wrote:


We recently modified such a power supply to get a single 12 volt DC
output at about 20 amps for a particular, amateur radio application.
In order to do so we had to load one of the 5 volt ouputs with a
couple of amps in order to get the unit to work; but that's normal.


Hey terry

I did that very same thing loaded the 5volt with 5ohm at 5 watt.
Ran my TenTec 526 off the 12 volt side of the PC power supply.
I thought it was the sweetest thing since sliced bread. Then
people started telling me I had this strange background noise.
They asked me what was going on in my shack. I had this strange
eerie noise in my shack, so they thought. Wasn't in my shack per
say but it was the PC power supply. Nobody knew I was running
a PC supply to power my rig.

73 OM

n7zu