There are several types of headset 'matching' units available commercially. These enable EM mikes to be used with Carbon configured radios, and vice-versa (Excuse the ignorance about electronic terms) Does anyone have a circuit diagram for one of these, or know a link to a diagram on the www, as I'd like to make one myself & save some money instead of helping the Avionics suppliers to get rich.
Many thanks for any leads
