Yup that's it!! I wonder if they do a right angled version? -----Original Message----- From: cctech-bounces at classiccmp.org [mailto:cctech-bounces at classiccmp.org] On Behalf Of Dennis Boone Sent: 31 May 2007 00:10 To: General Discussion: On-Topic and Off-Topic Posts Subject: Re: Power plug for a VAX 4000-300 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.ht ml The principal difference between the C15 and the more common C13 appears to be rated operating temperature. De