|Repaired Heil BM-10|
Heil had recently come out with a lightweight headset, the Heil BM-10. For right at $100, I purchased one with the HC-4 element. The HC-4 was supposed to have a little bit more "punch", great for DX and contest work.
I was immediately pleased with how it performed. I used that headset for many years, many enjoyable contests. It was pretty comfortable, although after several hours, even the light touch on the ears would cause a little irritation. The foam pads on the ears have been replaced a couple of times.
And then, in December of 2007, it quit. The microphone element stopped working. I disassembled it, determined that the element wasn't working, and it sat. I wanted to order a replacement HC-4 element. After all, Heil used to sell them. But no more.
After a while, I purchased a Heil Pro-set, perhaps one of the last ones made with the HC-4 element. It works spectacularly with the Elecraft K3.
So the BM-10 laid disassembled, for a suitable microphone element.
|Electret microphone nestled in a bed|
I also replaced the boom mic clip. The original one had long ago cracked and was held together with a screw. Hell fortunately still sells them as a replacement part.
I had to do some hunting to find the microphone cover. The headset had been disassembled so long all the parts weren't in the same place.
Works like a champ. A bit of foam to keep the element from rattling around, and perhaps it is good for another dozen years or so.