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Total 101 documents matching your query.

1. Re: [TenTec] Centaur amp (score: 1)
Author: Ken Brown <kenradiobrown@gmail.com>
Date: Sat, 25 Oct 2025 20:57:39 -1000
Sounds to me like there is a broken connection in the tank circuit. My guess is that the part of the band switch that connects additional fixed value capacitors to the Tune and Load variable capacito
/archives//html/TenTec/2025-10/msg00003.html (8,270 bytes)

2. Re: [TenTec] Orion Filter (score: 1)
Author: Ken Brown <kenradiobrown@gmail.com>
Date: Thu, 29 May 2025 20:57:34 -0600
You could move the filter to another position to see if the filter or the switching to that filter slot is at fault If the Orion works like the Omni VI there may be some bandpass shift or BFO adjustm
/archives//html/TenTec/2025-05/msg00008.html (8,390 bytes)

3. Re: [TenTec] Linear Amplifier (score: 1)
Author: Ken Brown <kenradiobrown@gmail.com>
Date: Wed, 6 Nov 2024 08:07:17 -1000
Can you be a bit more specific? Ten-Tec made more than one model solid state amplifier. Since the power supply is so heavy I am guessing it is one of the Hercules solid state amplifiers and not of th
/archives//html/TenTec/2024-11/msg00005.html (8,733 bytes)

4. Re: [TenTec] Omni C new owner thoughts (score: 1)
Author: Ken Brown <kenradiobrown@gmail.com>
Date: Fri, 12 Apr 2024 09:58:59 -1000
Marinos, Thank you for your observations on the Omni C. I do not own one myself, yet I am thinking someday I will want to buy a solid state transceiver that does not require any microprocessors to co
/archives//html/TenTec/2024-04/msg00003.html (12,164 bytes)

5. Re: [TenTec] TenTec filter info (score: 1)
Author: Ken Brown <kenradiobrown@gmail.com>
Date: Sun, 19 Nov 2023 23:36:33 -1000
https://tentecwiki.eqth.net/doku.php?id=filters
/archives//html/TenTec/2023-11/msg00022.html (8,352 bytes)

6. Re: [TenTec] Issue with Centurion (score: 1)
Author: Ken Brown <kenradiobrown@gmail.com>
Date: Tue, 24 Oct 2023 07:24:42 -1000
Plate current is not as great a concern as grid current. Excessive grid current can damage the tubes quickly. The power supply is probably not capable of supplying enough plate current to damage the
/archives//html/TenTec/2023-10/msg00008.html (10,067 bytes)

7. Re: [TenTec] Century 22 filter mod idea (score: 1)
Author: Ken Brown <kenradiobrown@gmail.com>
Date: Tue, 22 Aug 2023 07:26:50 -1000
Hi Gary, It is clear that you already know a lot more about those filters than I do. So I can't help you with your decision about changing R and C for filter center frequency, bandwidth and Q. I just
/archives//html/TenTec/2023-08/msg00004.html (11,902 bytes)

8. Re: [TenTec] Problem with Hercules II (score: 1)
Author: Ken Brown <kenradiobrown@gmail.com>
Date: Tue, 7 Mar 2023 08:55:20 -1000
Hi Wolfgang, Everything you describe suggests, exactly as you said, that it is poorly conducting relay contacts that are causing the attenuation in the receive signal path And there are only three re
/archives//html/TenTec/2023-03/msg00010.html (9,514 bytes)

9. Re: [TenTec] Jupiter help (score: 1)
Author: Ken Brown <kenradiobrown@gmail.com>
Date: Sat, 22 Oct 2022 20:22:08 -1000
Hi Paul, I just want to let you know your post is being seen. By me at least. I have absolutely zero experience with and near zero knowledge of Jupiters though. I hope you get some more informative r
/archives//html/TenTec/2022-10/msg00020.html (8,089 bytes)

10. Re: [TenTec] Corsair 2 RX issue (score: 1)
Author: Ken Brown <kenradiobrown@gmail.com>
Date: Thu, 15 Sep 2022 06:37:09 -1000
Hi all, I've noticed a similar problem at my station. The receive signal levels will drop by tens of decibels. Sometimes I hear it happening and it takes a couple of seconds. to drop from normal sign
/archives//html/TenTec/2022-09/msg00030.html (12,237 bytes)

11. Re: [TenTec] Repair of Hercules II (score: 1)
Author: Ken Brown <kenradiobrown@gmail.com>
Date: Fri, 23 Sep 2022 12:07:36 -1000
Hi Michael, I have a Hercules II and have serviced it myself. So I have perused the schematics enough to be pretty familiar with it. Maybe I can help you figure out what is going on. I changed out al
/archives//html/TenTec/2022-09/msg00041.html (9,687 bytes)

12. Re: [TenTec] Repair of Hercules II (score: 1)
Author: Ken Brown <kenradiobrown@gmail.com>
Date: Fri, 23 Sep 2022 12:59:48 -1000
Hmmm, I guess I'll have to take a look at the 9420 schematics again. Anyway to go any further we really need details from Michael about how is is using his amplifier and what it is and is not doing.
/archives//html/TenTec/2022-09/msg00043.html (11,426 bytes)

13. Re: [TenTec] Herc II followup (score: 1)
Author: Ken Brown <kenradiobrown@gmail.com>
Date: Fri, 23 Sep 2022 19:35:43 -1000
Hi Michael, How do you have the keying connected? Are you driving it with a Ten-Tec transceiver and using the full QSK keying loop? Or are you using a different method? Does the amplifier just not ge
/archives//html/TenTec/2022-09/msg00045.html (8,403 bytes)

14. Re: [TenTec] Argonaut filter question (score: 1)
Author: Ken Brown <kenradiobrown@gmail.com>
Date: Wed, 31 Aug 2022 07:47:04 -1000
Regarding 9 MHz Filters, Ten-Tec 9 MHz IF filters are mostly (maybe not all) NOT centered on 9 MHz. They have bandpasses of various widths covering a frequency range centered a kilohertz or so above
/archives//html/TenTec/2022-08/msg00011.html (12,693 bytes)

15. Re: [TenTec] Best Shipping Carrier (score: 1)
Author: Ken Brown <kenradiobrown@gmail.com>
Date: Thu, 21 Jul 2022 09:39:44 -1000
Which carrier is best for you depends a lot on where you live. Living in Hawaii USPS is usually the most cost effective option. Flat rate box service from USPS is just that: Flat Rate. Whatever will
/archives//html/TenTec/2022-07/msg00014.html (13,578 bytes)

16. Re: [TenTec] 238 tuners. (score: 1)
Author: Ken Brown <kenradiobrown@gmail.com>
Date: Sat, 7 May 2022 11:25:23 -1000
The exact capacitance rating is not important because when you use it, it is in parallel with the variable capacitor inside the 238. Of course it would not make much sense to use a real small capacit
/archives//html/TenTec/2022-05/msg00007.html (10,004 bytes)

17. Re: [TenTec] 238 tuners. (score: 1)
Author: Ken Brown <kenradiobrown@gmail.com>
Date: Sat, 7 May 2022 12:04:02 -1000
And when you do need it you may need more than 1000 pFd. That is the reason it is on the outside of the box. It makes it easy to add whatever is needed. N6KB
/archives//html/TenTec/2022-05/msg00009.html (9,467 bytes)

18. Re: [TenTec] a bunch of TEN TEC tuners, a hercules II amp; 509 515 and other stuff (score: 1)
Author: Ken Brown <kenradiobrown@gmail.com>
Date: Thu, 3 Feb 2022 08:56:30 -1000
I don't see any stuff. Did you forget to attach a list? I may be interested in something.
/archives//html/TenTec/2022-02/msg00009.html (8,804 bytes)

19. Re: [TenTec] 238 LAMPS (score: 1)
Author: Ken Brown <kenradiobrown@gmail.com>
Date: Fri, 11 Feb 2022 10:27:11 -1000
You can choose from various bayonet base miniature bulbs. If you want longevity go for higher voltage rated bulbs which will draw less current and glow on the red or amber side rather than bright whi
/archives//html/TenTec/2022-02/msg00022.html (7,782 bytes)

20. Re: [TenTec] Help with Omni VI+ please (score: 1)
Author: Ken Brown <kenradiobrown@gmail.com>
Date: Wed, 19 Jan 2022 08:17:37 -1000
Hi John, You need to be looking at TX AUDIO BOARD (81597) U4 is the balanced modulator. R3 and R4 are the balance adjustments. Don't start messing with them right away, because I suspect something el
/archives//html/TenTec/2022-01/msg00009.html (10,636 bytes)

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