Thank you Don & Mike for your suggestions! Yes, I had somehow accidentally moved S2 into the TEST position when removing C2. Putting it back into the OPER position cured the problem I feel a bit of a fool but thanks both for helping out 73 Ray, G3XLG
-----Original Message----- From: Mike Morrow [mailto:[email protected]] Sent: 11 January 2012 02:11 To: Ray Spreadbury; [email protected] Cc: [email protected] Subject: Re: [Elecraft] K1 Audio Problem after fitting KNB1 Noise Blanker Ray wrote: > The "whine" is a steady continuous tone (perhaps at 800 or 900 cycles), not > popping, nor a low pitched oscillation and in fact I wondered if the > sidetone spot was on or if the key was down. Have you checked that the small slide switch S2 for for the OFFSET TEST adjustment (on bottom of the RF board) didn't get inadvertently placed in the TEST position rather than the OPER position? I'd check that before anything else. 73, Mike / KK5F ______________________________________________________________ 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
