April 25th is the birthday of both Guglielmo Marconi and Edward R. Murrow, two giants in the world of radio. In their honor, some photos from my weekend visit to the Pavek Museum of Broadcasting in St. Louis Park, MN.

Edison’s First Phonograph (replica).

Spark Gap Radio Transmitter (working model) – used in early ship-to-ship radio communications a century ago.

NBC Chimes (yes, it really works)

Consumer radio model when radio was still in the Morse code stage.

In the 1920s Atwater Kent was a popular radio. This is a $100 radio.

The 1930s was the golden age of radio. Here are some of the popular models from that era, real works of art.

The radios continued to get smaller.

In the 1960s transistors arrived and plastic took over.

Early recording technology

Bing Crosby played a key role in the development of magnetic recorders.

Early microphone

More microphones

Early stereo record technology.

I had a cheap little tape recorder like this when I was a kid.

I learned radio broadcasting on a control board like this at my first radio job.

Ampex recorders like this were still standard equipment at radio stations back then.

The museum has a Theremin which was NOT standard equipment at most radio stations. But I discovered it was fun to play with.

The Pavek Museum of broadcasting is a fun place with lots of great memories.