Hi all, UV Eprom eraser works great exactly as many of you suggested. Total cost: approx 19 UK pounds (about US$30). I'll scan the arrangement and email it to anyone who requests it. The thing that had me puzzled were the three connections on the choke (ballast). Two of these connections were actually common. I've simply mounted it all on a piece of MDF. I put the PIC (a 16C71) next to the tube and put the whole lot in a drawer before turning it on. I'll probably build a proper enclosure at a later date but just wanted to get up and running quickly. Thanks again for the help. Regards, Robin