Re: Whole house DC Power supply

[Richard Malcolm-Smith <rich@xxxxxxxxxx>]

Benfield, John (Penta) wrote:
> I'm sending this to both the UKHA and SB lists as I cannot remember
where I've seen this.
>
> I know that someone on the list has a DC distribution system that they
have included in their selfbuild. I can even see the pictures in my mind
but can't for the life of me remember who it is. Basically I'm looking to
do a similar thing (driving CCTV camera and the like) and would like some
details about what and how they implemented it.

I have just smoked a cheap modulator trying to run it from the same 12v
plugpack
as the camera it was modulating.

The modulator for some reason had the barrel of the connector +ve, and
connected
to the shields of the in and the out, and the -ve tip of the dc socket was
(well
it still is I guess) connected into the circuitry via a -5v regulator. When
the video in shield was connected, it took out a few tracks on the PCB in
the
modulator. Oops..


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