Having just increased my collection with a VAX
4000-300 I have hit on a
minor problem. The mains connector into the H7874 PSU is a normal IEC
connector with one exception. Directly below the middle pin is a rib or
ridge that would require a groove or slot in the mating free connector.
It's defined by the IEC-320 spec. The C15 type goes on the cord, the
C16 is the back panel of the appliance.
See e.g.:
http://www.bulgin.co.uk/Products/IEC_Connectors/IEC_Inlets-Connectors.html
The principal difference between the C15 and the more common C13 appears
to be rated operating temperature.
De