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21. [TenTec] PA Bias Omni VI Plus (score: 1): Author: "Gary Hendricks" <k4mt1950@charter.net>; Date: Tue, 24 Apr 2018 02:46:14 -0600; I know the manual has left out a step but I have seen here what is mentioned as the proper procedure. What I have read is you turn both bias pots to lowest level and then adjust R 15 PA bias for 50 m; /archives//html/TenTec/2018-04/msg00096.html (7,475 bytes)
22. [TenTec] Omni VI Plus PA Bias (score: 1): Author: "Gary Hendricks" <k4mt1950@charter.net>; Date: Tue, 24 Apr 2018 02:52:33 -0600; I just looked at the Omni V manual and it is adjusted just like mine was. If so procedures I have seen here will cause too much driver bias and not enough pa bias. The Omni V says adjust driver bias; /archives//html/TenTec/2018-04/msg00097.html (6,698 bytes)
23. [TenTec] Omni VI PA bias update (score: 1): Author: "Gary Hendricks" <k4mt1950@charter.net>; Date: Tue, 24 Apr 2018 03:54:26 -0600; I have done a lot of research. If you get the 563 manual from the Tentec site it says driver bias 50 ma and PA 500 MA increase. Also my friend Garry Greene who worked with me at tentec says. Garry Gr; /archives//html/TenTec/2018-04/msg00098.html (6,776 bytes)
24. [TenTec] Omni VI Plus BFO trimmers (score: 1): Author: "Gary Hendricks" <k4mt1950@charter.net>; Date: Sun, 29 Apr 2018 15:26:37 -0600; My schematic is so blurry I can tell for sure what the value of those trimmer are. Looks like 4-20 PF but thats a guess. Wanted to put some higher quality ones in. Do you have suggestions of ones tha; /archives//html/TenTec/2018-04/msg00122.html (7,231 bytes)
25. [TenTec] Third Party Omni VI Plus TXCO (score: 1): Author: Gary Hendricks <k4mt1950@charter.net>; Date: Thu, 3 May 2018 12:01:44 -0400; My Omni VI seems to drift some on all bands and I am wondering if anyone has used any third party TCXO or OCXO on their radio. I see lots of choices on Ebay and was curious if anyone has tried any of; /archives//html/TenTec/2018-05/msg00008.html (6,802 bytes)
26. [TenTec] Omni VI Plus freq Adj (score: 1): Author: Gary Hendricks <k4mt1950@charter.net>; Date: Mon, 7 May 2018 13:56:00 -0400; I see this beat to death here but I have a question about peculiarities on this radio. I have seen to adj the BFO first and MO last. I have a very accurate HP counter referenced to 10 MHz stnd. Als; /archives//html/TenTec/2018-05/msg00022.html (7,686 bytes)
27. [TenTec] Omni VI Plus Freq Adjustment further (score: 1): Author: Gary Hendricks <k4mt1950@charter.net>; Date: Mon, 7 May 2018 15:31:46 -0400; Any Idea on what I am missing? I set MO for 20 MHz and BFO per spec and radio TX/RX tracks perfectly but display rads high. For example on 3700 it reads 3700.20 to be dead on freq. That reading the; /archives//html/TenTec/2018-05/msg00023.html (6,903 bytes)
28. [TenTec] Omni VI Logic board layout error (score: 1): Author: Gary Hendricks <k4mt1950@charter.net>; Date: Tue, 29 May 2018 10:32:23 -0400; I have been watching the PLL circuit operate on my omni VI and in particular the control voltage fed to the osc board to pull band crystal frequencies. I noticed after the radio was warmed up the co; /archives//html/TenTec/2018-05/msg00082.html (8,618 bytes)
29. [TenTec] Need RF choke (score: 1): Author: Gary Hendricks <k4mt1950@charter.net>; Date: Tue, 29 May 2018 16:43:52 -0400; I am working on another tentec omni VI and I have a bad RF choke in the collector circuit for the pre driver. Manual says 100 so I assume 100 Uh but cant seem to locate a sub that is higher than 6; /archives//html/TenTec/2018-05/msg00083.html (6,873 bytes)
30. [TenTec] Scout Meter (score: 1): Author: Gary Hendricks <k4mt1950@charter.net>; Date: Thu, 7 Jun 2018 06:01:03 -0400; I have a scout with a dead meter. I took it completely apart but the coil is open and no bad solder connections. Obviously this meter is not avail but am looking for a sub. Does anyone know what thi; /archives//html/TenTec/2018-06/msg00006.html (7,069 bytes)
31. Re: [TenTec] Omni VI frequency jumping/drifting (score: 1): Author: k4mt1950@charter.net; Date: Thu, 28 Jun 2018 07:40:06 -0600; Stan: I have had the exact same problem with my Omni VI. There is a procedure to properly adjust band crystals. It is: Omni VI Lock PulseRig should be on for at least 1/2 hour.Check 10MHz REF at pin; /archives//html/TenTec/2018-06/msg00099.html (9,696 bytes)
32. Re: [TenTec] Omni VI frequency jumping/drifting (score: 1): Author: k4mt1950@charter.net; Date: Thu, 28 Jun 2018 08:29:29 -0600; It does it on all bands and you will never notice it in normal operation. If I tune in carrier on WWV and watch it in fldigi I can see the freq vary a bit back and forth and the WWV carrier looks lik; /archives//html/TenTec/2018-06/msg00102.html (12,242 bytes)
33. Re: [TenTec] Omni VI frequency jumping/drifting (score: 1): Author: k4mt1950@charter.net; Date: Thu, 28 Jun 2018 08:34:13 -0600; I have been over entire PLL circuit and resoldered all the connections. Also inspected entire logic board for bad solder. I think the PLL circuit analog components are too temp sens. I could heat it; /archives//html/TenTec/2018-06/msg00103.html (11,719 bytes)
34. [TenTec] Omni VI 5 MHz PLL (score: 1): Author: Gary Hendricks <k4mt1950@charter.net>; Date: Fri, 29 Jun 2018 16:35:51 -0400; Has anyone done any adjustments to the main PLL board. I notice with MO at 20 MHz and BFO crystals right on and mixer crystals adjusted, the radio is 100 Hz off freq. I have to mis-adj MO to get rad; /archives//html/TenTec/2018-06/msg00112.html (6,853 bytes)
35. [TenTec] Jupiter Display brightness (score: 1): Author: "Gary Hendricks" <k4mt1950@charter.net>; Date: Thu, 19 Jul 2018 07:48:54 -0600; It seems my jupiter display is not as bright as it should be. It was this way when I got it and dont have another radio to compare it with but pictures I see online seem to have a much brighter scree; /archives//html/TenTec/2018-07/msg00042.html (6,887 bytes)
36. Re: [TenTec] Jupiter Display brightness (score: 1): Author: k4mt1950@charter.net; Date: Fri, 20 Jul 2018 06:41:16 -0600; Does the ribbon cable from the display to circuit board unplug at the main board? I have looked but afraid to pull on it. Unsoldering those pins on the display board might be a challenge without gett; /archives//html/TenTec/2018-07/msg00061.html (14,292 bytes)
37. [TenTec] 9420 manual (score: 1): Author: "Gary Hendricks" <k4mt1950@charter.net>; Date: Wed, 29 May 2019 18:42:42 -0400; I dont know why I am having problems finding a manual for the 9420 power supply. I must be searching for the wrong thing. Where can I get the manual? Thanks Gary K4MT ________________________________; /archives//html/TenTec/2019-05/msg00053.html (6,561 bytes)
38. Re: [TenTec] 9420 manual (score: 1): Author: k4mt1950@charter.net; Date: Fri, 31 May 2019 01:45:29 -0400; Hi Ken: I have received a copy of the manual in PDF. Thanks for your help Gary K4MT Looked in My Hercules II book and found a complete manual for the 9420 power supply. If you still haven't found the; /archives//html/TenTec/2019-05/msg00063.html (8,025 bytes)
39. [TenTec] Hercules II Power meter (score: 1): Author: Gary Hendricks <k4mt1950@charter.net>; Date: Sat, 1 Jun 2019 14:27:25 -0400; I just acquired a Hercules II and the power meter lights the red bars at about 400 watts. I looked at the control board and saw an adj named bar. Is that the adjustment? Also saw two pots that say AG; /archives//html/TenTec/2019-06/msg00007.html (6,836 bytes)
40. [TenTec] 9420 VS Switcher (score: 1): Author: Gary Hendricks <k4mt1950@charter.net>; Date: Sun, 2 Jun 2019 04:50:27 -0400; I have been looking at the schematic for my 9420 supply and it looks like the output of the series regulators have no over voltage protection. If my memory doesnt fail me I think when I was working a; /archives//html/TenTec/2019-06/msg00010.html (7,145 bytes)

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