What the tin says, this is for sharing old radio shwos that are freely available in the internet.
Nikola Tesla Wireless Radio has several https://www.youtube.com/@nikolateslawirelessradio (https://www.youtube.com/@nikolateslawirelessradio)
I use the internet archives mostly. Either for radio dramas
https://archive.org/details/oldtimeradio
or actual pulp magazines
https://archive.org/details/pulpmagazinearchive
And I've also gotten some from the Pulp Magazine Project
https://www.pulpmags.org/magazines.html
Hopefully, these libraries will grow as things from the 1930s start getting added to the public domain over the next few years.
The Horrorbabble channel on Youtube features excellent readings of lots of stories from Weird Tales. I like old radio shows as well, of course.