Impedance switch on helmet.
Hi,
I recently got a Gentex helmet that has a low impedance Electret mic o (did i get that right?). In my company our helis has different intercom systems for high and low impedance.
I guess i can do this two ways, either i get another mic, a dynamic one, or i can install a switch on the helmet that switches from low to high impedance.
Im looking primarily to get a switch, because this would cause the least hassle when changing aircraft.
Ive searched the forums for similar posts, but what im looking for is a wiring diagram to build this high-low switch.
Has anyone had the same problem, and found a good solution?
Much appreciated,
Dan