[Elecraft] Microphone preamp and Heils

[CMKaco at aol.com]

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