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Hi to all,
@Telecolor 3007 : Bosch-Fernseh is a 100% German company, they started in the 1920s. They might have cooperated with Philips for certain products but otherwise were in direct competition, especially for cameras.
When the Plumbicon came out (a Philips invention) everybody adopted it as it offered really superior color pickup performance.
Thomson (Please no "p") color cameras used Thomson made tubes.
Some tubes were interchangeable with other makers (EEV, Brimar...) as they were produced under RCA license.
In the B&W era (50s-60s) RCA tubes such as the Orthicon & image-Orthicon were of US origin. Europe was still rebuilding in the aftermath of WWII and did not possess the sophisticated technology necessary to produce tubes as complicated as the Image-Orthicon.
Best Regards
jhalphen
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