Folks, I must confess a 'senior moment' - the T7 turns ratio below is not correct, the correct ratio is 20:5 turns.
73, Don W3FPR -----Original Message----- From: Don Wilhelm [mailto:[EMAIL PROTECTED] Sent: Tuesday, January 09, 2007 7:57 PM To: 'Bernard Gaffney, N8PVZ/QRP'; [email protected] Subject: RE: [Elecraft] Re: Elecraft: K2 Audio Problem Bernie, In the past, I have complained about 'weak' audio on my K2 SN 00020, but I have since modified T7 to the newer turns ratio of 20:7, and I no longer complain - yes, there is not as much raw audio power as found in some other transceivers, but the K2 will 'blow your ears off' if the gain is turned up too far. T7 is one thing you may want to check - the 20 turn (red) winding should be connected toward the IF amplifier chip - if it is reversed, the audio will be quite 'anemic'. If you find T7 connected correctly, about the only other thing that can cause weak audio is improperly aligned IF filters. The use of Spectrogram is highly recommended. If you have questions about how to set the filters, check the last part of the K2 Dial Calibration information on my website http://w3fpr.qrpradio.com or look at the information on the Elecraft website. The last freeware version of Spectrogram is available on Tom Hammond's website www.n0ss.net , and is more than adequate for the task. 73, Don W3FPR > -----Original Message----- > > Come on Bernie I told ya road trip time.....take a tour around > the bottom of > Lake Michigan and come up this side and we'll have that puppy > working before > the first beer is gone. > > -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.432 / Virus Database: 268.16.8/621 - Release Date: 1/9/2007 1:37 PM -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.432 / Virus Database: 268.16.8/621 - Release Date: 1/9/2007 1:37 PM _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
