Ye, I guessed you'd have it sorted Mike - I thought it was worth a mention in case anyone went off on a frolic and did their own thing, or wished to use the meters in some other project, as I'm doing. In my case, two separate PP3 batteries will do the trick - one for the project power supply, the other for the meter.
I see that the Sussex thread has now been viewed 8415 times, and had 144 postings with this one! It's go to be top of the pops - way out in front as a home-brew project. (A bit like winning "Pop Idol" Mike, without the dosh and public acclaim to go with it - except of course from forum members
Regards,
David,
G4EBT