I have quite a bit of the Adventures of Superman radio program, but I can't quite track down some key episodes, or any real information about them. Specifically, I'm looking for the 1942 two-parter "Superman Comes to Earth" and "Eben Kent Dies in a Fire, Clark Kent Goes to Metropolis", and the serial "The Meteor from Krypton" from 1943. As far as I can tell, both stories retell Superman's origin, and the latter includes the first appearance of Kryptonite in any medium.
Unfortunately, the best I've been able to do is get part three of the latter seven-part serial, which is a start, but isn't quite where I'd like to be.
On the plus side, it'll be at least a month before I get to 1942, so I have some time. But if you know where to look, or even who to ask where to look, I'd be very appreciative. On the other hand, if you happen to have those episodes in an easily transferable format, I'd be even more appreciative.