K1 ser. #1870 is alive and well!
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K1 ser. #1870 is alive and well!
 
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Yay! My K1 (4 band) #1870 is alive and well...
I built it last summer, after buying it at Dayton. Everything worked great, and then 20 meters suddenly failed. Stone deaf and no output. All other bands were fine including 15 meters, which shares circuitry with 20 meters. After 6 months of "living with it" I finally opened the case and checked the 22 MHz crystal. I warmed up the "ungrounded" pin and lifted the crystal away from the circuit board a little. I put it back together enough to test it, and BINGO! 20 meters came to life and now works great! Apparently a solder blob was under the crystal at that point, grounding the pin to the case and thereby silencing the crystal. I immediately worked Arkansas and England on 20 meters without a hitch. The K1 is one of the few QRP rigs that would be comfortable as a day to day main station radio - as long as 7 watts is all you need ;^p Listen for me and K1 #1870 on 20 meters! Alan W. N5LF _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
XG1... other frequencies possible?
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Hello' Elecraft community... I have just received my XG1 Kit... I'm wondering if I have any chance to use a different XTAL to make it work somewhere on 14.XXX MHz... What should I do for this? Any hint *VERY* appreciated! Happy Easter everybody!!! /3 de Joe, IW7ECJ _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
RE: XG1... other frequencies possible?
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Happy Easter to everyone from here too.
Joe, I would think you could just plug in another fundamental crystal and try it. Do be aware that it may alter the output level from its normal 1 uV and 50 uV, so do test the levels before relying on any particular output - the output should be consistent, just not necessarily at 1 or 50 microvolts. 73, Don W3FPR > -----Original Message----- > Hello' Elecraft community... > > I have just received my XG1 Kit... > > I'm wondering if I have any chance to use a different XTAL to make it work > somewhere on 14.XXX MHz... > > What should I do for this? > > Any hint *VERY* appreciated! > > Happy Easter everybody!!! > > /3 de Joe, IW7ECJ > > _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
Re: XG1... other frequencies possible?
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In reply to this post by Joe Daring
Joe:
I tried it with a 3.57 MHz crystal and it worked FB. I'm guessing it will work with most HF crystals in the 80-20M range. John AA0VE Joe Daring wrote: >Hello' Elecraft community... > >I have just received my XG1 Kit... > >I'm wondering if I have any chance to use a different XTAL to make it work >somewhere on 14.XXX MHz... > >What should I do for this? > >Any hint *VERY* appreciated! > > Elecraft mailing list Post to: [hidden email] 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 |
RE: XG1... other frequencies possible?
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In reply to this post by Joe Daring
Hi Joe,
The XG1 has quite strong output on its harmonics, 14.080, 21.120 and 28.160MHz. Information is on page 3 of the manual. The second harmonic on 14.080 is approximately 7dB down on the fundamental. 73 Tony Fegan VE3QF -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of Joe Daring Sent: March 27, 2005 2:17 AM To: [hidden email] Subject: [Elecraft] XG1... other frequencies possible? Hello' Elecraft community... I have just received my XG1 Kit... I'm wondering if I have any chance to use a different XTAL to make it work somewhere on 14.XXX MHz... What should I do for this? Any hint *VERY* appreciated! Happy Easter everybody!!! /3 de Joe, IW7ECJ _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
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That's fine for K2 builders, but it wasn't much help with a K1 since they
don't tune that high on 20 and 15 with the optional 80 kc band spread. I stuck a 14.060 mc crystal I had left over from converting a Rock-Mite 20 to 15m and it worked fine, though I didn't measure the output to see how much it deviated from the 50 uV 40m output. It's bound to be different. I used a trick I first learned from Chuck, W5USJ, of using two Augat machined socket pins taken from an IC socket. Pull out the crystal, solder two of these pins in and plug in the crystal. Now you can stick anything you have into it. I got the pins from a new CPU socket for some early Pentium chip that I bought at a surplus store for 50 cents. With a firm grip on the bottom of a pin with needlenose pliers, you can just push the pins out the top very easily. It's going to be tougher if the socket is used...you might have to crush the base with side cutters...so try to get a new one. I just remove what I am going to use at the time. The socket base makes a safe storage place for the tiny pins between projects. They are great any place you want to experiment with part values and don't want to keep solder-stressing the board which is what Chuck originally used them for. Eric KE6US -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of Tony Fegan VE3QF Sent: Sunday, March 27, 2005 10:00 AM To: 'Joe Daring'; [hidden email] Subject: RE: [Elecraft] XG1... other frequencies possible? Hi Joe, The XG1 has quite strong output on its harmonics, 14.080, 21.120 and 28.160MHz. Information is on page 3 of the manual. The second harmonic on 14.080 is approximately 7dB down on the fundamental. 73 Tony Fegan VE3QF -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of Joe Daring Sent: March 27, 2005 2:17 AM To: [hidden email] Subject: [Elecraft] XG1... other frequencies possible? Hello' Elecraft community... I have just received my XG1 Kit... I'm wondering if I have any chance to use a different XTAL to make it work somewhere on 14.XXX MHz... What should I do for this? Any hint *VERY* appreciated! Happy Easter everybody!!! /3 de Joe, IW7ECJ _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
R: XG1... other frequencies possible?
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In reply to this post by Tony Fegan VE3QF-2
Hi all...
Thank you for all the replies... I think I' going to try the original xtal before, then I'll try and replace it with some fundamental XTAL in the 20m band... I knew abut the useable harmonics, but what I need is calibrated output from the XG1 in the 20m... and I have no way to measure the output :-( Thanks a lot again to everybody... 73 de Joe, IW7ECJ > The XG1 has quite strong output on its harmonics, 14.080, 21.120 and > 28.160MHz. Information is on page 3 of the manual. The second harmonic on > 14.080 is approximately 7dB down on the fundamental. _______________________________________________ Elecraft mailing list Post to: [hidden email] 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 |
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