Well there is one sat here with your name on it - and I wasn't even going to charge you postage! Oh well, into the box of random adaptors it shall go. Was second hand parts from my old scroller stock and an offcut of starquad, so didn't owe me anything. Just for reference all packs I've ever come across (telex, clearcom, stonewood/metro, tecpro) all share the same pinout for headsets Pin 1 Microphone earth / screen Pin 2 Microphone signal Pin 3 Earphones earth/screen Pin 4 Earphones signal Now that reminds me, time for a bit of embarrassing thread necromancy from a much younger version of myself...