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Friday, July 10, 2026

The Nuvistor, Thermatrons, RCA, Patents, the Rise of Asian Competitors (and my Parks Electronics 2 Meter Converter)


Asianometry always does a great job with this stuff, although I find myself grimacing when he speaks positively about Sarnoff.  Nevertheless the tube history is good (although he fails to mention that De Forest never figured out how his tubes worked).  

I have four Nuvistors!  They are in a 2 meter converter from Parks Electronics of BEAVERTON, OREGON. I may have this wrong, but I think the video said the Nuvistors were very expensive.  This can't be right.  Gemini AI says the 6CW4s in my Parks device sold for $1.50 to $2.50 in 1961. 

Three cheers for the Nuvistor!   I may try to see if they still work.  

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