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1. [TenTec] Argonaut 509 Bias Mod (score: 1): Author: "Byron Tatum" <bjtatum1@att.net>; Date: Mon, 3 Aug 2009 22:41:16 -0500; HelloI installed the bias modification under "Improving SSB Performance of Argonaut 509". I had problems - the PA current was way too high and could not be adjusted down. Did a lot of checking and fo; /archives//html/TenTec/2009-08/msg00022.html (7,468 bytes)
2. Re: [TenTec] Argonaut 509 Bias Mod (score: 1): Author: "Byron Tatum" <bjtatum1@att.net>; Date: Tue, 4 Aug 2009 20:09:09 -0500; Hello StuartThank you so much for the nice advice. I have noticed electrolytics in the AGC circuit and they are fairly old, so that will be my first try! Thanks, Byron -- Original Message -- From: "S; /archives//html/TenTec/2009-08/msg00032.html (9,038 bytes)
3. [TenTec] Argonaut 505 reed relay (score: 1): Author: "Byron Tatum" <bjtatum1@att.net>; Date: Tue, 4 Aug 2009 20:17:31 -0500; HelloI was thinking about converting an Argonaut 505 from the reed relay RF switch to the PIN diode switch as used in the model 509. I have the parts here on hand already, and thought it may improve; /archives//html/TenTec/2009-08/msg00034.html (6,855 bytes)
4. [TenTec] Argonaut 505 Slide Rule (score: 1): Author: "Byron Tatum" <bjtatum1@att.net>; Date: Wed, 5 Aug 2009 21:07:37 -0500; HelloI am fixing up an Argonaut 505 and found that the original red plastic slide rule indicator is missing. A piece of stiff wire is being used as the pointer with the dial cord and spring cord woun; /archives//html/TenTec/2009-08/msg00040.html (6,835 bytes)
5. [TenTec] Parts Needed (score: 1): Author: "Byron Tatum" <bjtatum1@att.net>; Date: Sat, 29 Aug 2009 19:38:02 -0500; HelloI thought I would ask if anyone on the list had these parts for sale: 1. To repair a Ten Tec #255 power supply: I picked one up and it was missing the entire regulator board 2, To repair a Ten T; /archives//html/TenTec/2009-08/msg00256.html (6,809 bytes)
6. [TenTec] RX-10, RX-315 (score: 1): Author: "Byron Tatum" <bjtatum1@att.net>; Date: Wed, 16 Sep 2009 15:41:08 -0500; HelloI was curious if there are many of the RX-315 receivers around? I have some old magazine clippings of the Ten Tec ads from back in 1972 showing the receiver. It appears to be the same physical l; /archives//html/TenTec/2009-09/msg00138.html (7,405 bytes)
7. Re: [TenTec] Radio shack DOES have DeOxit (score: 1): Author: Byron Tatum <bjtatum1@att.net>; Date: Fri, 2 Apr 2010 12:15:43 -0700 (PDT); A note Several months back I saw on one of these reflectors a link to an Audio-oriented supplier that had a web store and sold various maintenance items. They had the best prices for the De-Oxit a; /archives//html/TenTec/2010-04/msg00032.html (10,483 bytes)
8. Re: [TenTec] Radio shack DOES have DeOxit (score: 1): Author: Byron Tatum <bjtatum1@att.net>; Date: Sat, 3 Apr 2010 21:06:48 -0700 (PDT); YES! It is Sweetwater, thanks. I was very pleased with the De-Oxit purchases. Thanks Jack-Byron. Byron, That sounds like Sweetwater. They're mainly a music gear supplier, specializing in; /archives//html/TenTec/2010-04/msg00052.html (10,077 bytes)
9. Re: [TenTec] WTB Argonaut 505 parts radio (score: 1): Author: Byron Tatum <bjtatum1@att.net>; Date: Sun, 20 Mar 2011 03:25:02 -0700 (PDT); Hello Bill There is a place on internet that caters to TV repair that sells these two transistors very reasonable. I bought a few sets for my 505's. I cannot recall their name, but found them on a; /archives//html/TenTec/2011-03/msg00180.html (8,394 bytes)
10. [TenTec] Argo 505 Audio Output Pair (score: 1): Author: Byron Tatum <bjtatum1@att.net>; Date: Thu, 9 Jun 2011 07:10:47 -0700 (PDT); Hello This company was the one I obtained my spares of NOS audio output transistors (2N4105, 2N4106) from at a very reasonable cost. I have not checked to see if they still have them, however.; /archives//html/TenTec/2011-06/msg00034.html (6,854 bytes)
11. [TenTec] Model 315 Receiver (score: 1): Author: Byron Tatum <bjtatum1@att.net>; Date: Sat, 12 Mar 2022 17:56:36 +0000 (UTC); Hello- I have searched for one of these receivers for many years and finally was able to add a really decent looking one to my Ten Tec collection. I like to rebuild and use the early QRP Argonaut; /archives//html/TenTec/2022-03/msg00004.html (7,966 bytes)
12. [TenTec] Model 315 Receiver (score: 1): Author: Byron Tatum <bjtatum1@att.net>; Date: Tue, 15 Mar 2022 02:09:42 +0000 (UTC); I received no replies to my post regarding the transistors in the Model 315 receiver. I am speaking of the A138, A154, A2739 and BC418B devices. In trying to find data on them it appeared some were g; /archives//html/TenTec/2022-03/msg00006.html (8,367 bytes)
13. Re: [TenTec] Model 315 Receiver (score: 1): Author: Byron Tatum <bjtatum1@att.net>; Date: Wed, 16 Mar 2022 23:31:52 +0000 (UTC); I haven't spotted a source of the transistors you need, but you may wish to keep your eye on the Antique Electronics Supply web page (www.tubesandmore.com <http://www.tubesandmore.com> ) They have b; /archives//html/TenTec/2022-03/msg00008.html (10,279 bytes)
14. [TenTec] Model 315 Receiver Transistors (score: 1): Author: Byron Tatum <bjtatum1@att.net>; Date: Thu, 17 Mar 2022 02:15:03 +0000 (UTC); Mostly Out of Wanting to Know -- I have figured out that the epoxy cased transistors A138, A154, BC418B and the metal cased dual transistor A2739 are all made by Amperex. All of these devices; /archives//html/TenTec/2022-03/msg00009.html (7,521 bytes)

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