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1937 NBC/RCA remote truck

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01-06-2018, 08:52 AM

Penthode

VideoKarma Member

Join Date: Jun 2009

Location: Kitchener/Waterloo Ontario Canada

Posts: 1,462

I recall seeing the photo in an RCA Review.

1937 was an interesting time. The RCA high frequency acorn tube was introduced the year before. And RCA was exploring the 50 to 100MHz band (then called ultra high frequency).

I read that RCA was exploring 80 MHz to 100MHz for intercity relay. I suspect that the "microwave" at that time was around 100MHz.

Cheers

Terry

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