[sdiy] modular power supplies + lightweight cousins aunts, uncles and graverobbers

[Anthony Bisset]

the serge retrofit is getting to the stage where i need to consider
power supplies.  i'm traveling a lot, so i'm wondering how viable
it would be to build a reasonably lightweight filtering circuit so that i
could use standard crappy pc atx power supplies?  Anybody attempted this?
On this note, i can't find a single atx supply with more than 0.8amp on
the -12v rail... anybody know of a balanced atx supply?

Anyway,
at the moment i'm using a power-one hdcc and it's great, however it
weighs almost 30 pounds.  And the fact that i need a second supply for
another bit of kit brings us to almost 40 pounds of electricity.

I could purchase 3 of these and leave them on three different landmasses
but even lugging them around is a hassle and there's the chance i'll be in
other cities and again confronted with finding a power supply.

I need at least 3.4amp's on the +/-12v rails..  Since there is some jcd
involved, it'd be ideal to have a small .5amp tap at +/- 15v with 3.2a or
so on +/-12v and whatever on 5.

-anthony