How Radio Works

By 2009.01.13 tags: , , , . 1 Comment»

‘ON THE AIR’ 1937 – How Radio Works:

And that’s just for AM. Don’t even ask about FM.

via Technology360.

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Comment (1)

Good find!

At about 2:15, and 4:26 the illustrations of signals being amplified is actually incorrect (provided the units of the grid are static). The signals should only be getting taller when amplified (amplitude), not wider (period).

It must be those kind of sloppy mistakes that led GM into financial crisis!

Comment added by bcreeve on 01.13.09



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