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Science & Technology
3 6 9 Theory Of Nikola Tesla, The Universe Secret Code..
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<blockquote data-quote="steven chiverton" data-source="post: 226471" data-attributes="member: 7378"><p>i used to have the 3 legged ones which was said to be rare in the future and used in robotics as these ones have a clear resin dome and under it is the sensor its these ones that i used in the light listener circuit and wow do they work good i had it set in a lens placed in a cone and even the fluttering wings of a tiny insect i cant see outputs a sound in the headphones, its a fairchild photo transistor not optocoupler type</p></blockquote><p></p>
[QUOTE="steven chiverton, post: 226471, member: 7378"] i used to have the 3 legged ones which was said to be rare in the future and used in robotics as these ones have a clear resin dome and under it is the sensor its these ones that i used in the light listener circuit and wow do they work good i had it set in a lens placed in a cone and even the fluttering wings of a tiny insect i cant see outputs a sound in the headphones, its a fairchild photo transistor not optocoupler type [/QUOTE]
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3 6 9 Theory Of Nikola Tesla, The Universe Secret Code..
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