Thanks, I'll try the suggestions when I get home tonight. I hope it works, as it is in pristine condition save for the rear door which was missing when I acquired it.

EDIT: OK, a friend just gave me his old Fluke 111 digital multimeter! What scale do I use to check out the power brick? Unfortunately, there was no manual included and my friend won't have time in the next few weeks as he will be onsite at a location in the UK.