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Pingers and Hydrophones  - Page 2 14212712

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Pingers and Hydrophones  - Page 2 14212712

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      Pingers and Hydrophones

      profesorul
      profesorul
      Guest


      Posts : 386
      Join date : 2011-07-03
      Age : 60
      Location : Bucuresti, ROMANIA

      Pingers and Hydrophones  - Page 2 Empty Re: Pingers and Hydrophones

      Post  profesorul Sun Mar 22, 2015 8:46 pm

      I'm interested too .
      I think I steel have some were a Walkman tape cassette with his original helmet ! .

      Yap , I know I'm a sentimental guy !.

      MARIUS
      david f
      david f
      AMS Treasurer


      Posts : 2412
      Join date : 2010-11-10
      Age : 74
      Location : Cumbria

      Pingers and Hydrophones  - Page 2 Empty Re: Pingers and Hydrophones

      Post  david f Mon Mar 23, 2015 2:36 pm

      Just try it. You are not going to do any damage!

      The more hydrophones floating about the better (See my other post today!)

      Piezo elements are fairly "high impedance" but a lot of reasonably sensitive audio amplifiers will do the trick.

      The sort of sensitivity you are looking for (with the hydrophone element on a table) lightly tapping or scraping the table should give a noise over the headphones. (Headphones are always better, for some reason.)

      David

        Current date/time is Fri Dec 13, 2024 1:56 am