At my school's auditorium, we use a telex intercom system for tech communications (model number BP-1000). On one of the six headsets, the microphone took a dump (and I found this out the hard way too, i was running lights and couldn't talk to the spotlight operators for the whole show.. good thing they went to rehearsal). I ruled out the posability of the beltpack being the problem by trying the headset on another pack. You can hear everyone else just fine, so i doubt the cable on the headset is the problem. So my question is, can i replace the microphone in the head set with a Mic from Radioshack (like this)? Thanks in advance.