Date   : Tue, 08 Nov 2005 22:53:18 +0000
From   : Mike Tomlinson <mike@...>
Subject: Re: Guess age from serial number?

In article <43653FF1.2010702@...>, Annihilannic
<annihilannic@...> writes

>Could this PSU be one of the ones you were talking about?
>
>http://galaxy4.net/misc/beeb_mainboard.jpg

No, that's the later switched-mode (i.e. good) PSU.  The earlier ones
were black in colour and contained linear PSU circuitry.