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To all: The transducer for solids from which can be made the broadband voice transmitters are available on e-bay under "underwater speaker" at this time. These are selling for $26.95 but shipping is being provided. This is not a bad price if you were concidering delving into this area of study. With a singing machine that is battery operated, a voice transmitter can be made from the use of this. (It still needs to be imbedded in molding plastic to survive deep depths.) And you will still need a means of hearing the return responce. It sure would be great to talk back and forth between two submerged submarines or to your support boat without having to surface first. David Bartsch Windows Live Hotmail now works up to 70% faster. Sign up today. |