David Clark / Heil Headset
I wanted to reduce the background noise I heard while operating so I modified my David Clark headset I had bought for attending NASCAR races. I removed the cord and boom mike from my Heil Pro-Micro headset. I disassembled the David Clark headset, drilled three small holes, one for the mounting/pivot screw, one for the tab that limits the pivot (I could have cut out an arc but I didn't want the boom to pivot), and one for the mic wire. Next I removed the David Clark Headset cable and replaced it with the one from the Heil. I connected all the wires and I now can listen to the rig with the volume turned way down since I don't have to mask any fan noise from the computers or ham gear.