All About FM This week we have a couple of documents from the early 1940’s explaining FM. At this time FM was very, very new. It had the benefit of reducing the noise one would hear on AM. A lot of work went into convincing the world that FM was the way of the future. 1941-All about FM (3 MB)1941-GE FM Primer (4 MB) AM Broadcast Transmitters Some classic (and one BIG) broadcast transmitters. Raytheon RA-250 Popular with 250 watt Read more…