John,

I had the same problem but then found this shop that used to be a Tandys, they still buy radioshack equipment and within a couple of days had ordered in the analog meter for me.

Hope this helps
Link to product [Link: radioshack.com]
Link to calibration info [Link: community-2.webtv.net]

Cost £29.99

The Really Useful Electrical Shop Ltd
36b Howardsgate
Welwyn Garden City,
Hertfordshire AL8 6BJ

Tel: 01707 395333

Trevor