hams on classiccmp

der Mouse mouse at Rodents-Montreal.ORG
Mon Jan 19 15:28:35 CST 2009


>> 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....
> You may find those SMPSU blocks will work from either 115V or 230V
> mains with [no] user adjustments.

They're marked that way, certainly: "110-240VAC 50/60Hz".  That's one
reason I suspect them of being switchers.

> I assume the input connector on the SMPSU is either an IEC plug or
> one of those figure-of-8 connectors, or at least something stnadard.

Figure-of-8?  I suspect you're probably talking about the same thing,
even though it doesn't quite look like most fonts' 8 to me.  Here's a
reasonably close depiction of the socket on the mini-brick, if you've
got a PostScript implementation available:

306 396 translate 10 100 moveto 0 100 10 0 360 arc closepath fill 10
-100 moveto 0 -100 10 0 360 arc closepath fill 100 100 moveto 0 100 100
0 180 arc -100 35 lineto -50 0 lineto -100 -35 lineto 0 -100 100 180
360 arc 100 -35 lineto 50 0 lineto 100 35 lineto closepath 1
setlinewidth 1 setlinejoin stroke showpage

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