[Elecraft] K2: connecting a condenser mic

[Jim Brown]

On Fri, 29 Jan 2010 08:49:43 -0500, Brian Machesney wrote:

>I have a condenser mic 

If it's like most 2-wire mics, you want a series resistor between V+ 
and the "hot" terminal of the mic. It serves as the load resistor 
for the output stage of the mic, and also limits current to that 
output stage to a safe value. If I knew nothing about the mic, a 
value on the order of 4.7K - 5.6K would be a good starting point. 
The mfr is giving you lower values. If you use NO resistor, the V+ 
shorts out the audio. 

73,

Jim K9YC