To bring anyone up to date that might be interested. Derek Purkis ( owner of Bournemouth Model railway shop) passed away 3 weeks ago due to major issues with his kidneys. the shop is now closed and most of the stock has gone. I starting working with Derek around 1984, he would sell he items i made under the name of Train Tronics these included lighting and certain electronics items. If any one is having any problems with the Train Tronics products i would be only to happy to help. Regards Andy Fairclough