Hi, sorry if this repeats previous information request, but I did a lot of searching and didn't find anything directly on point (even though there were several threads on preamps and Heils, etc.) I downloaded the Microphone Pre-Amp for Heil schematic on the Elecraft website. My questions are: 1. Does anybody make a PCB for this project? I imagine all these parts are available from Radio Shack or Mouser? 2. Does the preamp make the microphones work really well, or is it just something that "gets you by?" 3. As far as Heil microphone modules go, if I build the preamp, and want to buy the Classic, can I use any module, like the Pro, HC-5, HC-4, etc., or should I get the ICOM only module, which I believe is an electret module. I am a bit confused about all this. I asked Elecraft and they said I should get the electret module. Bob Heil said the Classic was not a good choice for the K2 and he suggested his iCM mic for ICOM. Doesn't the iCM mic have the same electret element that the Classic with the IC element has? If all I needed was an electret element, do I need the preamp at all, or does it make the electret work even better? 4. Once I build the preamp, is it something that I can tuck into the microphone itself (like a Heil Classic) or does it go inside the K2 or do I need to put it into it's own little enclosure. Thanks for your help. I am a new ham, and am trying to sort through all this stuff. Christ Kacoyannakis K4CMK
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