Here is a collection of vintage ads for vacuum tubes with the quaint claims about superiority which were convincing to the public at that time





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1920s Cossor Advert

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1920s Osram Advert

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1932 Philips Advert

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1920s Mullard Advert

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1928 Radiotron Advert

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1940s US Taylor Tubes Advert

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193os AWV Radiotron Advert (Australian)

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1940s US Raytheon Advert