I've got my grandparent's old Philco (pic8.co) radio purchased in '48 I'd guess. I'd love to get it repaired.
Looks like it was a hum-dinger in it's day. Now it only hums.
Is it a loud 60Hz (like the AC line) buzz, or just a quiet mmmmmmmmmmmmm?
I can't remember, it's been stashed away for about 50 years, I tried it maybe 30 years ago and I remember it just hummed, but I can't remember the tone. A quieter mmmmmmm IIRC. Then I stashed it away and haven't touched it since. In fact, I just now found that it was a 1948 model. I thought my grandparents listened to WWII broadcasts with it all my life. TIL they didn't.
That model has FM, which would have been pretty advanced for the time.
If you do get it out again, it's probably best not to plug it in. That's a transformer set, and if something is shorted you run the risk of destroying something that's ubobtanium.
Here's the Rider's Perpetual Troubleshooter folder for the unit, if you're interested: http://www.nostalgiaair.org/PagesByModel/637/M0013637.pdf