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1. [TenTec] unsubscribe (score: 1)
Author: "Jeff" <w4dd09@gmail.com>
Date: Fri, 9 Aug 2013 22:31:25 -0400
_______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.contesting.com/mailman/listinfo/tentec
/archives//html/TenTec/2013-08/msg00160.html (6,536 bytes)

2. Re: [TenTec] Titan 425 Amp for sale (score: 1)
Author: Jeff <w4dd09@gmail.com>
Date: Mon, 30 Mar 2015 09:35:32 -0400
_______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.contesting.com/mailman/listinfo/tentec
/archives//html/TenTec/2015-03/msg00264.html (7,761 bytes)

3. Re: [TenTec] Titan 425 Amp for sale (score: 1)
Author: "Jeff \(W4DD\)" <w4dd09@gmail.com>
Date: Sun, 14 Jun 2015 12:36:22 -0400
Hi Gene, curious if you every sold your Titan. Jeff, W4DD Have Titan 425 original amp. RF deck in perfect working condition, spare tubes included, but power supply needs work-rebuilding of filter boa
/archives//html/TenTec/2015-06/msg00048.html (7,640 bytes)

4. Re: [TenTec] For Sale: 599 Eagle (score: 1)
Author: "Jeff \(W4DD\)" <w4dd09@gmail.com>
Date: Tue, 22 Sep 2015 21:20:12 -0400
Is this Tim of KY5R fame? If so, long time no talk to. Jeff, W4DD Procured last summer. Used on 6mtrs only. Has Tuner , hardware NB, 2.4Khz and 600Hz Roofing filters Manual, pwr cable, Mic. Have orig
/archives//html/TenTec/2015-09/msg00076.html (7,852 bytes)

5. [TenTec] Orion 1 CPU (score: 1)
Author: "Jeff \(W4DD\)" <w4dd09@gmail.com>
Date: Fri, 23 Oct 2015 10:36:53 -0400
For anyone that needs (or may need someday) a CPU chip (MC68EZ328) for the Orion 1 main board, I ran across this ebay seller. According to the schematic, the MC68EZ328 is what is used on that board.
/archives//html/TenTec/2015-10/msg00159.html (7,531 bytes)

6. Re: [TenTec] More T parts (score: 1)
Author: "Jeff \(W4DD\)" <w4dd09@gmail.com>
Date: Wed, 11 Nov 2015 18:06:59 -0500
BTW, received the Orion front panel last weekend. Excellent packing job! Appreciate it. 73's Jeff I also have an Orion 1 secondary receiver hard, two of the small function encoders for Orion, Orion 2
/archives//html/TenTec/2015-11/msg00106.html (9,390 bytes)

7. Re: [TenTec] Way Off Topic, But... (score: 1)
Author: Jeff <w4dd09@gmail.com>
Date: Fri, 4 Dec 2015 08:02:30 -0500
_______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.contesting.com/mailman/listinfo/tentec
/archives//html/TenTec/2015-12/msg00046.html (10,359 bytes)

8. Re: [TenTec] Dragonball CPU for Ten-Tec Orion (score: 1)
Author: "Jeff \(W4DD\)" <w4dd09@gmail.com>
Date: Fri, 25 Mar 2016 08:20:01 -0400
If the CPU is the MC68EZ328 (Motorola), I believe it is the 3.3V supply. I bought a couple last year from the seller on ebay and it looks to be an exact replacement although I haven't had a need to t
/archives//html/TenTec/2016-03/msg00306.html (16,409 bytes)

9. Re: [TenTec] Orion logic issue (score: 1)
Author: Jeff <w4dd09@gmail.com>
Date: Sun, 31 Jul 2016 07:50:09 -0400
Always start by reburning the firmware. I have solved some really odd issues by doing this. Jeff, W4DD It does boot up the latest software version, my problem started with out if band receive on 40 m
/archives//html/TenTec/2016-07/msg00257.html (11,480 bytes)

10. Re: [TenTec] Orion logic issue (score: 1)
Author: Jeff <w4dd09@gmail.com>
Date: Sun, 31 Jul 2016 15:30:47 -0400
Tera term is also excellent. _______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.contesting.com/mailman/listinfo/tentec
/archives//html/TenTec/2016-07/msg00267.html (26,660 bytes)

11. Re: [TenTec] Orion II repair (score: 1)
Author: "Jeff \(W4DD\)" <w4dd09@gmail.com>
Date: Sun, 7 Aug 2016 13:03:13 -0400
Great info guys. One other idea I sometimes use. With the unit off, measure the resistance to ground of similar lines, like the row or column scanning lines. If one is significantly different, maybe
/archives//html/TenTec/2016-08/msg00036.html (10,735 bytes)

12. Re: [TenTec] Orion II repair (score: 1)
Author: "Jeff \(W4DD\)" <w4dd09@gmail.com>
Date: Sun, 7 Aug 2016 13:07:06 -0400
And forgot to mention my favorite tool for any problem that changes over time, a can of freeze mist. Great info guys. One other idea I sometimes use. With the unit off, measure the resistance to grou
/archives//html/TenTec/2016-08/msg00037.html (11,072 bytes)

13. Re: [TenTec] Orion II repair (score: 1)
Author: "Jeff (W4DD)" <w4dd09@gmail.com>
Date: Tue, 9 Aug 2016 08:13:36 -0400
The binary number that the B represents may provide some insight. _______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.contesting.com/mailman/listinf
/archives//html/TenTec/2016-08/msg00051.html (11,386 bytes)

14. Re: [TenTec] TT Orion 2 and inrad 2400 hrz ssb filter? (score: 1)
Author: "Jeff (W4DD)" <w4dd09@gmail.com>
Date: Thu, 25 Aug 2016 10:35:14 -0400
As I recall, the initial 4 pole filters from ten tec were not in a metal enclosure but the Inrad filters are. I did not realize that the Inrad filters were not shielded. Thanks for the info. Also, no
/archives//html/TenTec/2016-08/msg00323.html (12,143 bytes)

15. [TenTec] Orion 2 Filter Installation (score: 1)
Author: "Jeff \(W4DD\)" <w4dd09@gmail.com>
Date: Fri, 30 Dec 2016 11:30:41 -0500
Likely many of the Orion 2 owners know this already, but thought it worthwhile to pass it on. There are 2 ways to install Orion filters. On the O1, it doesn't matter since the signal pins are on oppo
/archives//html/TenTec/2016-12/msg00189.html (7,549 bytes)

16. Re: [TenTec] Titan II with Russian 4CX1600 - dd response to grid voltage (score: 1)
Author: "Jeff (W4DD)" <w4dd09@gmail.com>
Date: Sat, 29 Apr 2017 09:14:13 -0400
I dont have the spec sheet availble right now, but if the 4cx1600 is like the 4cx800, isnt the standby bias around -150v. _______________________________________________ TenTec mailing list TenTec@co
/archives//html/TenTec/2017-04/msg00074.html (9,701 bytes)

17. Re: [TenTec] [] Running a Century 21 on external 12V power (score: 1)
Author: "Jeff (W4DD)" <w4dd09@gmail.com>
Date: Sun, 4 Jun 2017 07:28:00 -0400
You might want to try and find where the hum is entering the system. I have done this before by using a 1uf cap to ground and touching the cap to the input of each stage. Remember to discharge the ca
/archives//html/TenTec/2017-06/msg00037.html (11,607 bytes)

18. Re: [TenTec] orion (score: 1)
Author: "Jeff (W4DD)" <w4dd09@gmail.com>
Date: Thu, 31 Aug 2017 19:51:54 -0400
Check how they are plugged in. On mine the labels should be readable from the back of the radio. If inserted the wrong way the filter is bypassed. Jeff, W4DD _________________________________________
/archives//html/TenTec/2017-08/msg00155.html (7,541 bytes)

19. Re: [TenTec] orion (score: 1)
Author: "Jeff (W4DD)" <w4dd09@gmail.com>
Date: Thu, 31 Aug 2017 21:01:10 -0400
Great, glad that worked. The previous owner of my Orion 2 had all 3 filters in backwards too. I noticed they didn't have any selectivity ! Jeff that was what the problem was filters in backwards. --O
/archives//html/TenTec/2017-08/msg00160.html (9,048 bytes)

20. Re: [TenTec] Orion problems (score: 1)
Author: "Jeff (W4DD)" <w4dd09@gmail.com>
Date: Tue, 26 Sep 2017 05:52:32 -0400
I would start by confirming voltages on the A9 board. Also scope them. Then confirm they are getting to the dsp's. As I recall, the v2 mod is a single strap, but don't recall the details. I would foc
/archives//html/TenTec/2017-09/msg00138.html (11,616 bytes)

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