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 small town, low budget stations (1.2 MB)
Bauer 707 Popular with the 1KW day / 250 night stations. Offered as a kit! (2 MB)
Continental 105C A 1,000 KW transmitter! (8 MB)