was just an IEC320 plug, not one with a built-in filter,
but I found a generic plug from the local electroncis shop was a
fit as a replacement for a broken one in an HP9820 calcluator made over
25 years earlier. No cutting, filing or drilling needed.
Just for the sake of accuracy, IEC 320 is a specification covering
numerous styles of plug/socket connector combinations.
The common pair used with electronic equipment (one of the pairs
specified in IEC 320), is the C13 (female outlet) and C14 (male inlet)
You are correct, of course.
The actually IEC 320 spec (or whatever it's called now -- EN60320,
perhaps) is not cheap. I think I discovered that to gert the whole thing
would coat around \pounds1000 and (a) I don't have that sort of money and
(b) if I did, I'd have better things to spend it on.
However, when I was writing about the HP9800s, I did try to track down
thge correct names for these connectors. As far as I can see
IEC320 C14 is the chassis-mouting input plug used on most eleectrical
equipment. IEC320 C13 is trhe cable mounting socket o nthe end of the
mains lead It appears to be incrrect to call the chassis socket (like the
one on an IBM 5150 PSU to plug the 5151 monitor into) a C13. The best
reference I could find called those :
IEC 320-2-2 Sheet F for the chassis socket (power outlet) and
IEC 320-2-2 Sheet E for the cable plug (as on the end of the 5151 monitor