How Superheterodyne Radio Receivers Work

[hemmjo]

Very interesting. When I was a kid, in the 50's, there was a guy across the street had been a navy radio man in WWII. When it would stop working, he came over with his black case of tubes. Open up the back and change one of two of them and make it work again. I always found that fascinating, still only have a very basic concept of how it all works.