Does anyone know anything about the Burroughs head-per-track disk drives? Must be 1960s mainframe technology. We had two of these gadgets attached to a (modified) CTL Modular One at Westfield College, London. It was all scrapped out in the 1980s, but I still have a power supply from one of the drives. Is it any use to anybody (it's now in Bristol)? It's a massive transformer, rectifier and capacitor setup. -- John Honniball coredump(a)gifford.co.uk