There is an interesting technical story about how this was recorded, and how the recording was recently recovered:
http://www.timesunion.com/AspStories/story.asp?storyID=942480
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SolderSmoke Daily News — Ham Radio Blog
Serving the worldwide community of radio-electronic homebrewers. Providing blog support to the SolderSmoke podcast: http://soldersmoke.com
Great!
Wonderful to hear a recording from the geat man from so long ago.