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 Robotics / Handy Board / 7386
    Re: Sonar and the handyboard —William Bain
   My guess is that the Polaroid unit will only be able to drive transducers with electrical characteristics very similar to the Polaroid transducer. The transducer functions mainly as a capacitor, and in between pings, it is kept at a couple hundred (...) (25 years ago, 4-Feb-00, to lugnet.robotics.handyboard)
 

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