[CQ-Contest] OT - Using a computer power supply as a bench supply

Prasad VU2PTT vu2ptt at gmail.com
Wed Mar 22 00:26:03 EDT 2017


Pete,

This should answer your questions:

http://www.electronics-tutorials.ws/blog/convert-atx-psu-to-bench-supply.html

73 

Prasad VU2PTT 

Sent from my iPhone

> On 21-Mar-2017, at 8:15 PM, Pete Smith N4ZR <n4zr at comcast.net> wrote:
> 
> I'm sorry for the off-topic question, but can't find a good reflector for this one, and I figured this diverse group was most likely to have answers.  Please feel free to reply off-list.
> 
> 10-plus years ago, I built what was to be a bench supply using an old AT power supply - 5 and 12 volts. It didn't put out any voltage, so I shelved it - figuring a bum supply.  Then just a relatively few years ago, I read that these supplies required some load on the 5V supply in order to put out any power on either output.  I can't find the reference now, and am hoping some of the knowledgeable here will have some info on this.
> 
> Thanks for your patience
> 
> -- 
> 
> 73, Pete N4ZR
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