sheets: Anyway I have run in to some trouble trying to find information on who supplies B&O for most of it's component parts? Or does the company make all of its own components and materials for its products?
You might need to clarify what level of component parts you are talking about.
If you mean sub-assemblies (e.g. a CRT, a CD drive) then Phillips was once a major supplier.
Lately it has become Samsung supplying flat panels or even most of a mobile phone.
I hope you don't mean components at the level of valves and switches
First B&O (1976) was a Beogram 1500 ... latest (2011) change has been to couple the BL11 with the BL6Ks *sounds superb*