K2 EXCESSIVE PREAMP NOISE?

Posted by N2PD on Aug 21, 2013; 12:56am
URL: http://elecraft.85.s1.nabble.com/K2-EXCESSIVE-PREAMP-NOISE-tp7578009.html

I've been wondering about this for awhile and would like to get some opinions. When I switch in the K2 preamp, I get a substantial increase in noise....not band noise...I'm talking about no antenna connected. I haven't measured it as yet, but the noise increase is great enough to make me suspect I have a noisy transistor. Think that's possible?  Any comments appreciated.