Thanks for posting this, Ray. I also was getting those kind of reports on my K2. I was able to get the 1uF electrolytics but was unable to find the 0.1uF. G3RXQ was quick to respond to my email and said that a 0.1uF monolithic could be used instead. The results are great, as confirmed by hams I talk to on a regular basis for many years.
Now, if I could only get the circuit between my ears to work so that I could tell that I had not put my K2 in split mode while trying to work K1N a little while ago, all would be good. The "frequency police" were not bashful in letting me know the error of my ways. Thanks again. 73, George NC5G >Other K2 owners may be interested in this. >After getting many reports of poor quality transmit audio with my K2 (using the Proset K2 Heil boom >microphone and headset), I carried out the modifications described by G3RXQ which increase the lower cut >off frequency of the microphone circuit on the KSB2. This involves changing C34 from 2.2uF to 1uF, C31 >from 2.2uF to 1uF and C20 from 0.33uF to 0.1uF. -- View this message in context: http://elecraft.365791.n2.nabble.com/K2-SSB-Performance-Improvement-tp7596200p7598119.html Sent from the Elecraft mailing list archive at Nabble.com. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
