Message-ID: <003c01cb96f8$b257b7a0$0401a8c0@xphd97xgq27nyf>
From: "mal hamilton" <g3kevmal@talktalk.net>
To: <rsgb_lf_group@blacksheep.org>
References: <002201cb96e5$d03718a0$0401a8c0@xphd97xgq27nyf> <1291822160.1823.15.camel@gerhard-desktop>
Date: Wed, 8 Dec 2010 16:55:19 -0000
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Subject: Re: LF: Computer psu
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Thanks Gerhard and Terry
Lots of useful information about plug pin connections. I did find some info
on internet but yours was more than helpful
I managed to get 6 units today Chieftec 12v at 15 amps (yellow wires) plus
all the other useful voltages like 5 v high current.
I intend to use these in series at 12v to give me a total of 72 v. and keep
them individually insulated from each other, this is easier than separating
the cct board from earth.
Thanks agn to all that replied
de mal/g3kev

----- Original Message -----
From: "Gerhard Hickl" <gerhard.hickl@aon.at>
To: <rsgb_lf_group@blacksheep.org>
Sent: Wednesday, December 08, 2010 3:29 PM
Subject: Re: LF: Computer psu


> Hi Mal !
>
> Here's another Link:
>
> http://www.antennex.com/preview/archive3/powers.htm
>
> Mostly the screws of PCB provide the electrical connection between earth
> and negative side. Sometimes it's enough to remove the copper of the PCB
> in this area or using insulating washers between PCB and the metal of
> the chassis.
>
> Some or even most of the units also require a minimum load (in the 50mA
> range) in order to work properly. Mine is working without such a minimum
> load but making a chirping sound then....
>
> 73
> OE3GHB
> Gerhard
>
>
>
>
>
>
> Am Mittwoch, den 08.12.2010, 14:40 +0000 schrieb mal hamilton:
> > All
> > Does anyone know the plug/pin connection voltages for a typical
> > desktop computer smpsu.
> > I expect its the large 20 pin plug that goes to the motherboard. Some
> > of these units I have discovered deliver 12 v + at 15 amps and several
> > in series would be useful for a high voltage psu for a FET PA.
> > Any info would be useful for would be modifiers of such units, and if
> > the neg side can be isolated from the chassis.
> >
> > de mal/g3kev
> >
>
>
>