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41. [TenTec] Argosy 525 (score: 1): Author: Shawn Upton <kb1ckt@yahoo.com>; Date: Sun, 1 Aug 2010 11:52:50 -0700 (PDT); Speaking of the Argosy 525 analog version, I have a question. I bought one a decade ago, and made a few contacts on it, but made the mistake of doing the upgrades (mixer diodes I think, certainly the; /archives//html/TenTec/2010-08/msg00004.html (7,223 bytes)
42. Re: [TenTec] Argosy 525 (score: 1): Author: Shawn Upton <kb1ckt@yahoo.com>; Date: Sun, 1 Aug 2010 17:07:33 -0700 (PDT); I don't have the schematic in front of me, but going by the previously given link I do recall now it being a discrete diode mixer. Actually, I think there may be a pre-amp there too, been a while, th; /archives//html/TenTec/2010-08/msg00007.html (9,354 bytes)
43. Re: [TenTec] OT: automotive lightning hit (score: 1): Author: Shawn Upton <kb1ckt@yahoo.com>; Date: Mon, 9 Aug 2010 17:01:05 -0700 (PDT); Engines can cost a few grand, more if imported. Many of the sensors are "isolated" by whatever control unit they talk to--they do not always get power directly from the battery. It's possible that if; /archives//html/TenTec/2010-08/msg00104.html (11,113 bytes)
44. [TenTec] Argosy Dial cord question (score: 1): Author: Shawn Upton <kb1ckt@yahoo.com>; Date: Wed, 20 Apr 2011 16:34:42 -0700 (PDT); Years ago I did the upgrade mod's to my Argosy (diodes in the mixer, and AF rolloff), only to find it drifted. I'm starting to wonder if that might have been due to the dial cord--I recall it not mov; /archives//html/TenTec/2011-04/msg00264.html (6,938 bytes)
45. Re: [TenTec] Help for Century 21 with no sidetone (score: 1): Author: Shawn Upton <kb1ckt@yahoo.com>; Date: Sun, 24 Jul 2011 11:15:37 -0700 (PDT); I'd look for a cold solderjoint or the like. Do you have the manual? If not, it is online at TenTec's website; going through the listed DC voltages may shed light as to where the problem is. Shawn Up; /archives//html/TenTec/2011-07/msg00149.html (9,136 bytes)
46. Re: [TenTec] 1340 QRP Transceiver - 12V Polarity? (score: 1): Author: Shawn Upton <kb1ckt@yahoo.com>; Date: Mon, 12 Mar 2012 16:39:40 -0700 (PDT); One of the first things I did with my 1340 was apply power backwards. Oops. All the IC's got replaced, and on the advice of TenTec, the final too. I don't think anything else was damaged. After that; /archives//html/TenTec/2012-03/msg00126.html (8,823 bytes)
47. Re: [TenTec] 1340 QRP Transceiver - 12V Polarity? (score: 1): Author: Shawn Upton <kb1ckt@yahoo.com>; Date: Tue, 13 Mar 2012 15:05:08 -0700 (PDT); Yeah, I know. Didn't want to deal with a fuse. Shawn Kb1ckt _______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.contesting.com/mailman/listinfo/tent; /archives//html/TenTec/2012-03/msg00129.html (8,743 bytes)
48. Re: [TenTec] Century/22 filter frequency mod. (score: 1): Author: Shawn Upton <kb1ckt@yahoo.com>; Date: Sat, 7 Apr 2012 06:09:26 -0700 (PDT); It's been years since I designed an active filter; but IIRC one could recenter the filter by multiplying the R's and the C's by new_center_frequency / old_center_frequency. Basically, the capacitors; /archives//html/TenTec/2012-04/msg00100.html (9,180 bytes)
49. Re: [TenTec] New TT Amp (score: 1): Author: Shawn Upton <kb1ckt@yahoo.com>; Date: Sun, 12 Aug 2012 05:02:06 -0700 (PDT); For their new 539 QRP transciever--but I don't see a 539 on their websight. ? Shawn Upton, KB1CKT NAQCC 4723 ________________________________ From: Mr Mike <kf8zn@yahoo.com> To: "tentec@contesting; /archives//html/TenTec/2012-08/msg00096.html (8,005 bytes)
50. Re: [TenTec] New TT Amp (score: 1): Author: Shawn Upton <kb1ckt@yahoo.com>; Date: Sun, 12 Aug 2012 10:08:42 -0700 (PDT); Interesting. I have been thinking of tossing the FT-817 into the car, but 5W into a low-efficency antenna has deterred me thus far. This amp is too big for that job. I didn't look to see how it was; /archives//html/TenTec/2012-08/msg00103.html (9,321 bytes)
51. [TenTec] Argosy Value? (score: 1): Author: Shawn Upton <kb1ckt@yahoo.com>; Date: Sat, 6 Oct 2012 10:15:06 -0700 (PDT); I'm thinking of taking my Argosy to Nearfest (along with a pair of 2591's), and I'm wondering what is a good price to try to sell it for. Ballpark if you will. It is working, but many scratches (I'; /archives//html/TenTec/2012-10/msg00065.html (7,316 bytes)

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