Huge Photo cell sending tube for mechanical television

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Huge Photo cell sending tube for mechanical television

Postby Harry Dalek » Mon Jul 20, 2015 6:47 pm

Price is a bit high but nice photos of one !
http://www.ebay.com/itm/Huge-Photo-cell ... 1a021f9ee7

I grabbed the photos don't think we will see one of these again for a while .

Theres a mechanical television book on ebay some photos worth grabbing as well ..
http://www.ebay.com/itm/Vintage-MECHANI ... 2ee384a0b2

Love this old tv !
http://www.ebay.com/itm/VINTAGE-1940s-O ... 1ea173014f
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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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