I CAN REMEMBER, (wainwrights shop,both snooker halls yes both,sheltons,nelson and the tv the banks plus the heeley palace the heeley colosseum and many more) I LIVED ON LONDON ROAD TILL THE LATE 60s
TAKE A LOOK AT THESE
http://www.dabs.com/category/computing,laptops-and-netbooks,accessories/11106-4294951666#filters
http://www.scan.co.uk/shop/computer-hardware/all/laptops-netbooks/power-supplies
http://www.web-systems.co.uk/?page=Products&gid=37
PLUS THERE ARE MARKET STALLS THAT DO CHEAP ONES ALSO YOU CAN GOOGLE THE MAKE AND MODEL AND LOOK AT THE SHOPPING RESULTS TO FIND ONE