Yes I thought "Kettle lead" and shot off to the kitchen.
Er nope, our kettle has a standard IEC connector as found on a million
and one PC's.
So rummage through cable collection and discover a cable with a somewhat
longer IEC connector.
Yes! it has a groove opposite the middle connector. But, what's this?
The groove does not extend to the front of the connector. It must have
been designed to work with a spring clip that was depressed as the
connector was inserted and clicked into place when the plug was fully
home.
Needless to say, removing the small piece of plastic to extend the
groove to the front took seconds and it fits. However its not the
'right' cable. I have read the manual for the 4000-300 and theres a nice
section on the plug. However it refers to it as the 'power cable shipped
with your system'. The picture shows it to be a right angled type and
there's a picture of the various wall socket end plugs. None of them are
UK 13Amp type.
Whilst working at DEC I had a mains cable problem with terminals. The US
claimed the German type (Round with two round pins) was standard for the
UK. The guy came over for a meeting and I asked him to plug in the
terminal using his 'British' standard cable. That cost him a very nice
evening out.
The solution? We shipped an IEC cable that had a standard UK 13A plug
moulded on the other end. They took it to their cable sub contractor. He
said "Oh you ment those!" He had thousands in stock and they were
cheaper than the one they normally shipped!!!
So whilst what I have will probably run, its not the correct cable. It
should be a right angled IEC type with a groove or slot opposite the
middle pin.
Rod Smallwood DecCollector
-----Original Message-----
From: cctech-bounces at
classiccmp.org
[mailto:cctech-bounces at
classiccmp.org] On Behalf Of Tony Duell
Sent: 31 May 2007 00:28
To: cctalk at
classiccmp.org
Subject: Re: Power plug for a VAX 4000-300
Hi
Having just increased my collection with a VAX 4000-300 I have hit
on a minor problem.=20 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=20 mating free connector.
=20
Before I start hacking up cables does anybody recognise this plug.
Sounds like a 'hot condition' IEC connector. It was originally used on
kettles, and the like, and was designed (a) to withstand higher
temperaturs than the normal on, and (b) it's rated at 10A (IIRC), the
normal one being originally rated at 6A. It's the latter that's
important here.
Any dectnet electronics shop in the UK would stock it.
-tony