I still can't see anything wrong with a
good-quality mains
transformer in an earthed metal box with primary and secoondary side
fuses. That's what I normally uild to replace wall-warts.
Well, from the point of view of the people selling the stupid things,
the thing wrong with that is simple: the cost difference isn't nearly
worth it. Especially for mass-market consumer gear, almost everyone
(two nines? three?) are perfectly happy with a supplied wall-wart and
never have a lick of trouble with it, retiring the device long before
the wall-wart fails (planned obsolescence, yay! - yes, I'm being
sarcastic). Wasrranty replacement for the few cases where the
wall-wart fails in-warranty costs far less than supplying a proper
power supply for all units.
I don't like it either. But we (FVO "we" approximating "those who
care
enough") will have to pay the price of a good supply one way or another
in order to get a good supply, and I actually think I'd rather pay it
your way; then I _know_ the supply in question.
I too have some old stuff with power-brick supplies putting out
voltages like regulated +5 and +/-12, typically with something like a
DIN-5 connector. I treasure them. :) At $DAYJOB, among other things,
we (re)sell VoIP phones, and I've noticed that they used to come with
wall warts and now come with tiny little bricks with a mains-cord
socket rather than mains prongs instead. They appear to be switchers,
which has good sides and bad sides....
But if I want nice clean power for something of my own, I usually go
linear, with substantial overdesign. Just like classic computers.
Odd, that. :-)
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