This has been available on my web-site for a couple of years.
The web-site has moved to Australia and the URL has changed in the process.
The new URL for the scanned image of the paper is
It has been posted with permission from the UK IEE who own the copyright, as noted here
This web-page is missing it's graphical images, which is a bit odd. I spent a tedious afternoon correcting the relevant file-names so they displayed properly on the new IP's dummy web-site.
It will get fixed eventually.