hams on classiccmp
Roy J. Tellason
rtellason at verizon.net
Wed Jan 21 05:37:18 CST 2009
On Tuesday 20 January 2009 05:25:38 pm Paul Koning wrote:
> >>>>> "Tony" == Tony Duell <ard at p850ug1.demon.co.uk> writes:
> >> > 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
> Tony> 'Figure of 8' is the common (although incorrect for many
> Tony> reasons) name for the normal 2 pin main connector you find
> Tony> (found?) on cassette recorders, radios, etc in the 1980s. I've
> Tony> seen it caleld a 'Telefunken connector', although I suspect
> Tony> that name is dubious too.
> Perhaps the same, perhaps not -- there are a number of IEC mains
> connectors. There is the 5 sided one found on many computers, which
> is rated at 10 or 13 amps depending on country. A less common variant
> (also 5-sided) has the blades parallel to the long edge rather than
> the short edge -- 16 or 20 amps. (There's also a version of the 13
> amp connector with a dent in the long side opposite the ground pin;
> that indicates high operating temperature rating.)
I've not seen either of the latter two (yet).
> For lower power, there are "figure of 8" connectors. One has two
> wires (no ground). The other is 3 wire (with ground); the ground is
> in between the other two, offset to the side, a 120 degree or so
> equilateral triangle. That plug style is good for 3 amps or so. Some
> "brick" power supplies come with this; I think I had a Sony laptop
> once that did.
Of the two laptops here, I have one of each of those, this Sony having the
two-pin variant and the Dell I was using before that having the three-pin
variant. At one point I had the Dell with me but not the cord (and the
battery on that one is unusable) and I had no difficulty in finding one to
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