#1
Do you have any idea how much these are worth, or what you could do with them?
(Invalid img)
Pulled these out of an old Philips radio...
"Yeees I am your god!" John Petrucci, Phsyco excercises
#2
Probably not worth much because they are only used in radios as far as I'm aware. Could give them to a museum? lol
Gear
Schecter Synyster Gates Custom-S
Fender American Deluxe Stratocaster
Ibanez RG370DXL w/SD Invaders and a hot rail
Tanglewood acoustic
Marshall JVM410H
+a lot of pedals!
#3
Probably not the right forum to ask. I'd search on the specific valve references and see what comes up.

There are valves that, for what ever reason, are worth silly money to collectors but the likelihood of stumbling across such a gem is remote. Such things are only sought after if they are either extremely good or extremely rare or both.
Please note: The above comments are based on my experience, and may represent my perception of that experience. This may not be accurate and, subject to the style of music you play, may be irrelevant or wrong.
#4
Old table radio tubes aren't worth much. There were millions made and are still very common. They're not totally useless, though.

https://www.ultimate-guitar.com/forum/showthread.php?t=1664663