I have an old 1958 Crown Imperial tape recorder that I want to try to fix so I can transfer some old tapes to MP3. Right now, once the thing warms up it makes a horribly loud HUMMMMM noise.

I have the original instruction manual that shows the schematic, but was wondering if anyone knows where I can get spare parts for this thing? Can I just purchase tubes from any place? Also, the electrical cord on this thing is about to turn into dust and must be a fire hazard, any thoughts on how/where I can get a new one?

Thanks for any help in this mattter!
Jamie