hi, I spent my week-end to write a report on the restoration of the early French computer ODP-505. This computer is built with germanium transistors and has a core memory. I spent my monday to translate the job for you. You will find the result here: http://pichotjm.free.fr/Serel/ODP505/ODP505us.html For curious people: you can visit the entire site with http://pichotjm.free.fr/indexUS.html Visting http://pichotjm.free.fr/ will gives quite the same, but in French. More information can be found in French. You can find more pictures... Enjoy! JMP