I disassembled an old radio that I found in my attic and found some electronic components that I can't recognize.
I think that the first component is an inductor. I'm pretty sure about that... But I can't understand why it's made the way it is. There is more than one coil on the same core, so the coils should be coupled... But for what purpose?
As for the second and third component I really have no clue about what they are. However, I tested the third component with my tester and I found out that the resistance between the majority of its pins is really low and many of them are short-circuited on the PCB.
Finally, there's a photo (below) of a speaker. I'd like to know why the connection to the speaker is made with a "coil". There are a lot of connections made like that on this circuit.