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Dahlquist Electroacoustic Transducer
Dahlquist Electroacoustic Transducer
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Old 14th June 2005, 02:19 AM   #1
moray james is offline moray james  Canada
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Default Dahlquist Electroacoustic Transducer

Just in case you have not seen this patent by Dahlquist number 4,020,296 USA.
Discribes a transducer where the electrical conductors are mounted over the radiating area of the movable diaphragm. Electromagnetic forces exerted upon the diaphragm are linear throught the entire excersion of the diaphragm.
Very interesting read check it out. Kind of like an electromagnetic driven ribbon. Regards Moray James.
moray james
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Old 14th June 2005, 02:20 AM   #2
454Casull is offline 454Casull  Canada
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This is news?
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Old 14th June 2005, 02:40 AM   #3
dvdvideo is offline dvdvideo  Canada
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If it's a new patent, and it is different tech, sure....
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Old 14th June 2005, 02:47 AM   #4
SY is offline SY  United States
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Dahlquist Electroacoustic Transducer
It's an old patent and, AFAIK, not exploited by the inventor. In any case, it's long expired, so anyone who finds it interesting is perfectly free to pursue it.
"You tell me whar a man gits his corn pone, en I'll tell you what his 'pinions is."
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