My small collection...looking for insight

[orge121]

Hello Videokarma community!

I recently got into the antique radio collection business, mostly garage sales and goodwill. I hope to start working on these radios soon but I am wondering a few things.

Are any of my radios junk/not work fixing?
What would be a starting point for repairing any of my collection?
General thoughts?

I am hoping to get more deep into this hobby, but I do not know anyone around me that shares this hobby, hence this forum.

Radios:

Zenith T825 - The light turns on but the radio makes no noise. Missing knobs and needs work on the case.

Zenith XD50G - Radio works fine, but has a very loud buzz.

Admiral 'Bullhorn' - I cannot find much information on this radio. The radio works fine but the turntable does not.

Ward Airline 8A36-5 - Needs a lot of work. I cannot figure out HOW to turn the radio on...

Zenith J665 - The cord needs to be replaced, so I do not know the radios condition.

Again, I am looking to get more into this hobby, thanks!