> Rather depends what you mean by "military" - most (old) > UK military headsets that I've seen (typically used by > ATC) have carbon-granule microphones, like old telephone > handsets, so you'd need some sort of amplifier to use > with a "normal" audio input. Rather: an attenuator, because a carbon mic (at its nominal current) outputs a much larger voltage than a dynamic mic or a electret (with build-in amplifier). Wouter van Ooijen -- ------------------------------------------- Van Ooijen Technische Informatica: www.voti.nl consultancy, development, PICmicro products -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.