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Total 11 documents matching your query.

1. [TenTec] the VFO/PTO rebuild (score: 1): Author: bill steffey <ny9h@arrl.net>; Date: Thu, 27 Jan 2022 08:45:37 -0500; TT 509 & 515 are two fantastic QRP radios from TenTec,,,, back in the 70s, before anyone knew what QRP was !!! After finding a used 509 in the QST classified ads, I drove 6 hours one night to pick up; /archives//html/TenTec/2022-01/msg00014.html (8,858 bytes)
2. [TenTec] Omni VI opt 3.... PLL problem (score: 1): Author: Jim Goudie <jagoudie@comcast.net>; Date: Thu, 27 Jan 2022 20:05:35 -0500; Hello, [ I sent this a day ago. and it never appeared, so trying again ;-). ] I have an option 3 Omni VI that has developed a gargley warbley wobbly intermittent sound heard on Tx and RX, and I also; /archives//html/TenTec/2022-01/msg00015.html (7,616 bytes)
3. [TenTec] Omni VI opt 3.... PLL problem (score: 1): Author: Peter Bertini <radioconnection@gmail.com>; Date: Thu, 27 Jan 2022 22:32:22 -0500; First, does it only on a few select bands, or on all bands? If one or two bands only chances are it is a hetrodyne crystal that has aged and is going out of lock. Some of those crystals are used one; /archives//html/TenTec/2022-01/msg00016.html (7,349 bytes)
4. Re: [TenTec] Omni VI opt 3.... PLL problem (score: 1): Author: Jim Goudie <jagoudie@comcast.net>; Date: Thu, 27 Jan 2022 23:28:40 -0500; Thanks, Pete I didnt check all the bands carefully or systematically. I heard it on several. Ill go back and be more careful about it. And yes, it seems to happen after it has been on for a while. bu; /archives//html/TenTec/2022-01/msg00017.html (8,888 bytes)
5. Re: [TenTec] Omni VI opt 3.... PLL problem (score: 1): Author: gerd Groos <df9ts.cw@gmail.com>; Date: Fri, 28 Jan 2022 10:22:15 +0100; Pete, could you share the procedure you mentioned? I have a OMNI VI that I love. PLL board has the two PLL circuits out of sync, I have no continous frequency output from VFO anymore. Checked and tri; /archives//html/TenTec/2022-01/msg00018.html (10,159 bytes)
6. Re: [TenTec] Omni VI opt 3.... PLL problem (score: 1): Author: Jim Goudie <jagoudie@comcast.net>; Date: Fri, 28 Jan 2022 10:23:49 -0500; Yes, Pete. Id appreciate receiving that procedure as well. It makes a lot of sense and I feel more encouraged to give it a try! My problem definitely only shows up after the rig warms up Thanks again; /archives//html/TenTec/2022-01/msg00019.html (11,411 bytes)
7. Re: [TenTec] Omni VI opt 3.... PLL problem (score: 1): Author: Peter Bertini <radioconnection@gmail.com>; Date: Fri, 28 Jan 2022 13:43:39 -0500; That warbling can also be caused by a HFO crystal that is trying to phase lock to the master oscillator. The PLL will sweep the oscillator loop voltage trying to achieve a locked condition. I've had; /archives//html/TenTec/2022-01/msg00020.html (9,103 bytes)
8. Re: [TenTec] TenTec Digest, Vol 229, Issue 8 (score: 1): Author: Cubbie <jstanisi@comcast.net>; Date: Fri, 28 Jan 2022 13:53:18 -0600; Hi Jim, not sure I can help troubleshoot your current problem but, I had some trouble with the PLL board on my OMNI VI + which turned out to be a solder bridge from the factory. Only way I found it w; /archives//html/TenTec/2022-01/msg00025.html (20,667 bytes)
9. Re: [TenTec] Omni VI opt 3.... PLL problem (score: 1): Author: Jim Goudie <jagoudie@comcast.net>; Date: Fri, 28 Jan 2022 17:44:22 -0500; Pete, Thanks! I saw a reference today stating that these boards in the oven often have solder joint problems, which makes me think that my be heat related, as well. I appreciate this additional infor; /archives//html/TenTec/2022-01/msg00026.html (10,478 bytes)
10. Re: [TenTec] TenTec Digest, Vol 229, Issue 8 (score: 1): Author: Jim Goudie <jagoudie@comcast.net>; Date: Fri, 28 Jan 2022 17:55:45 -0500; Thanks, Jim I appreciate all the clues and help. As I start to dig in some more, all the background received here helps me pay attention and hopefully see what I need to see. Thanks! Jim AF3Z Jim Gou; /archives//html/TenTec/2022-01/msg00028.html (26,473 bytes)
11. Re: [TenTec] Omni VI opt 3.... PLL problem (score: 1): Author: Ken Brown <kenradiobrown@gmail.com>; Date: Fri, 28 Jan 2022 20:26:10 -1000; If you adjust those inductors in the band select oscillators be very careful. It is easy to wear out the threads in the slugs and/or the coil forms the slugs screw in. It is also easy break the adjus; /archives//html/TenTec/2022-01/msg00029.html (10,866 bytes)

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