I have a Trimm type W headset, in pretty good shape and electrically fine, but one diaphragm and plastic screw-on cap is missing. I swapped the ones I have from side to side, and both coils work fine. Anybody got a hanger queen for parts, or suggestions? I like this headset and would like to save it. Thanx and 73, Jim W7HPK jimbowman at seanet.com