These are digitised recordings of the original 1950s (?) radio broadcasts, so the audio is a little ‘iffy’… might have a stab at cleaning the audio up, but that’ll be a rainy Sunday job (being in Ireland such things aren’t that rare!)
Thanks for the link, Gary! I’ve loved space opera type stuff like Flash Gordon, ever since I saw the 1980 movie as a kid (which I need to get now that it’s out on DVD). I’m still giving the SciFi Channel series a go, but it had better improve quickly. The dates on the site you linked to say these were made in 1935; I love these old radio dramas, too. There’s nothing like this on radio in the States.