I would suggest watching some Bob Andersen old radio restoration projects to see how old radios evolved. Some projects go into double digit number of episodes s

I would suggest watching some Bob Andersen old radio restoration projects to see how old radios evolved. Some projects go into double digit number of episodes so one needs some time to digest them. Apart from electronics, Bob does cosmetic restorations too. https://www.youtube.com/user/bandersentv https://www.youtube.com/user/bandersentv