[Elecraft] K3: Heil PR20 Microphone
Howard Ashcraft
hwashcraft at gmail.com
Tue Sep 13 10:03:31 EDT 2011
I purchased a Heil PR20 microphone after comparing sound quality with
several other options. To my ear, it had a nice combination of clarity and
fullness. However, I am getting relatively low output from the mic and
consequently low drive to the K3/100. With the microphone configuration on
"hi" and with gain advanced fully (60), I have to speak fairly loudly to
drive the K3 to 60 watts measured on an LP100 wattmeter. Power output on CW
is the full 100w plus a little. I could design a small pre-amp stage to
boost the gain, but am wondering if I am overlooking something (or is it
common to use a pre-amp for this type of mic?) Howard W1WF
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