Helicopter version of JB-23. This item will not work with a David Clark H10-76. The 1142-22 (Electret mic) will change the Impedance for your DC H10-76 to use in a Civilian Helicopter.

This adapter converts a low impedance mic and phone military headset into higher impedance for use in general aviation aircraft. It also converts the U-174/U plug on the military headset into .206" and .25" plugs used in general aviation. 3 feet in length. WILL NOT WORK WITH DC H10-76 HEADSETS.