1939 phonoVision

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1939 phonoVision

Postby Harry Dalek » Sun Sep 13, 2020 11:54 am

The bulletin. (1 Feb 1939) This is interesting no mention of baird's work on phonovision but looks like they were having a go at 405 line mechanical recording ...making a phono cartridge with a bandwidth in a few mhz range would be a problem perhaps the reason nothing else was heard of it
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The electromagnetic spectrum has no theoretical limit at either end. If all the mass/energy in the Universe is considered a 'limit', then that would be the only real theoretical limit to the maximum frequency attainable.
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Harry Dalek
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