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1. [TenTec] 425 titan (score: 1): Author: W1dxh@aol.com; Date: Thu, 17 Jan 2008 17:12:43 EST; hello to all, i am a newbie to rtty and was wondering if anyone has used the 425 titan on rtty? at what power did you run it at, and is there any thing i should know before hand. thanks any info appr; /archives//html/TenTec/2008-01/msg00363.html (6,637 bytes)
2. Re: [TenTec] 425 titan (score: 1): Author: "Bob McGraw - K4TAX" <RMcGraw@Blomand.net>; Date: Thu, 17 Jan 2008 21:46:24 -0600; For RTTY it is rated 1000 watts output for 10 minutes of transmit time with a 50% duty cycle. i.e. 10 minutes transmit, followed by 10 minutes of receive. Follow the TUNE UP procedure in the manual a; /archives//html/TenTec/2008-01/msg00369.html (8,438 bytes)
3. Re: [TenTec] 425 titan (score: 1): Author: Ken Brown <ken.d.brown@hawaiiantel.net>; Date: Thu, 17 Jan 2008 18:04:22 -1000; Hi Bob, The Titan 425 uses a pair of 3CX800A7 triodes. Your advice to watch the (control) grid current is good. There is no screen grid. DE N6KB _______________________________________________ TenTec; /archives//html/TenTec/2008-01/msg00370.html (9,855 bytes)
4. Re: [TenTec] 425 titan (score: 1): Author: "Bob McGraw - K4TAX" <RMcGraw@Blomand.net>; Date: Thu, 17 Jan 2008 22:25:33 -0600; Sorry folks, I quoted data from the Titan III which uses 4CX800A tetrode tubes and not 3CX800A7 triode tubes. The latter was used in the earlier version of the Titan amps. My manual is for the Titan; /archives//html/TenTec/2008-01/msg00371.html (11,060 bytes)
5. Re: [TenTec] 425 titan (score: 1): Author: Ken Brown <ken.d.brown@hawaiiantel.net>; Date: Thu, 17 Jan 2008 21:25:36 -1000; Hi Bob, There have been at least three versions of Ten-Tec Titan amplifiers (or four if you count the darker colored version of the 425, and I guess there was a "Gold" edition of the 425 too, so perh; /archives//html/TenTec/2008-01/msg00372.html (13,443 bytes)
6. Re: [TenTec] 425 titan (score: 1): Author: "Ten-Tec Inc. Amateur Radio Sales" <sales@tentec.com>; Date: Fri, 18 Jan 2008 12:25:48 -0500; Bob -- I think you're quoting the specifications from the Titan II or Titan III. The Titan 425 is rated at 1000 watts continuous -- no time limit. Running RTTY with that amplifier at 1500 watts in us; /archives//html/TenTec/2008-01/msg00378.html (10,660 bytes)
7. Re: [TenTec] 425 titan (score: 1): Author: Mike Gorniak <mgorniak@genesiswireless.us>; Date: Fri, 18 Jan 2008 11:22:43 -0600; Steve, I'll second that! As far as I know, there is no protection for Grid Overdrive on the 425. There is an "Overdrive" LED that indicates that too much power is being applied to the amplifier. The; /archives//html/TenTec/2008-01/msg00379.html (8,634 bytes)
8. Re: [TenTec] 425 titan (score: 1): Author: "Paolo Emanuelli" <ik1qhb@libero.it>; Date: Fri, 18 Jan 2008 18:47:57 +0100; Hi OM I own a #40 gold series Titan 425. I didn't remember where have read this difference between gold series and normal version: The gold series work also on 30meter (tune the 40m band on 30m with; /archives//html/TenTec/2008-01/msg00380.html (8,123 bytes)
9. Re: [TenTec] 425 titan (score: 1): Author: W1dxh@aol.com; Date: Fri, 18 Jan 2008 16:08:05 EST; thank you all for the info on running rtty with the titan 425. hope to print you all some time. 73's tnx, steve w1dxh In a message dated 1/18/2008 12:27:27 P.M. Eastern Standard Time, sales@tentec.co; /archives//html/TenTec/2008-01/msg00382.html (11,003 bytes)
10. Re: [TenTec] 425 titan (score: 1): Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>; Date: Thu, 17 Jan 2008 20:39:09 -0800; As others have suggested, be conservative. Grid current is a well known failure mode, so my absolute rule is to keep the grid current below 30 mA. Period. For RTTY, I'd run the amp around 800 watts o; /archives//html/TenTec/2008-01/msg00394.html (8,300 bytes)
11. Re: [TenTec] 425 titan (score: 1): Author: "Doug" <w5ga@arrl.net>; Date: Fri, 18 Jan 2008 17:36:50 -0600; I've used mine a bit on RTTY, and I keep the voltage switch in the low position. The air coming off the finals gets REAL, REAL hot in the high position. This is also what the manual says to do. 73, D; /archives//html/TenTec/2008-01/msg00395.html (7,891 bytes)
12. Re: [TenTec] 425 titan (score: 1): Author: "Bob McGraw - K4TAX" <RMcGraw@Blomand.net>; Date: Fri, 18 Jan 2008 20:22:00 -0600; Scott & Company: Yes, my manual is the Titan III. I've done a couple of repair jobs for some folks thus the reason for the manual. I stand corrected and I understand the difference between the Titan; /archives//html/TenTec/2008-01/msg00398.html (12,385 bytes)
13. Re: [TenTec] 425 titan (score: 1): Author: "GARY HUBER" <glhuber@msn.com>; Date: Sun, 20 Jan 2008 08:14:59 -0600; Scott, Any information on the number of "E" models produced? Were they "special" runs or just a few units in a regular run? (I have S/N 425-00516 with "TITAN 425E... Not for Domestic Sale" painted on; /archives//html/TenTec/2008-01/msg00402.html (12,674 bytes)
14. Re: [TenTec] 425 titan (score: 1): Author: "Barry N1EU" <barry.n1eu@gmail.com>; Date: Sat, 19 Jan 2008 15:04:17 +0000; Isn't the insignificance of the "E" simply that the amp shipped with 10M installed rather than requiring the ham to install it? 73, Barry N1EU _______________________________________________ TenTec m; /archives//html/TenTec/2008-01/msg00403.html (8,725 bytes)
15. Re: [TenTec] 425 titan (score: 1): Author: "John Cox" <jecox@tri-lakes.net>; Date: Sat, 19 Jan 2008 10:57:37 -0600; The E was the export model. I would guess that the rest of the world doesn't have the CB'ers to contend with. 73 John kc0yai _______________________________________________ TenTec mailing list TenTec; /archives//html/TenTec/2008-01/msg00407.html (9,397 bytes)
16. Re: [TenTec] 425 titan (score: 1): Author: Ken Brown <ken.d.brown@hawaiiantel.net>; Date: Sat, 19 Jan 2008 09:52:28 -1000; The whole world has CB'ers to contend with. The difference is that not all of the world's regulatory agencies choose a policy that penalizes law abiding radio amateurs in an attempt to deal with a p; /archives//html/TenTec/2008-01/msg00411.html (9,423 bytes)
17. Re: [TenTec] 425 titan (score: 1): Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>; Date: Sat, 19 Jan 2008 16:01:20 -0600; The anti CB amplifier rules didn't allow an amplifier to take less than 40 or 50 watts drive, for sure nothing that took 3 to 5 watts was legal and it couldn't have too much power gain or work on 27; /archives//html/TenTec/2008-01/msg00413.html (10,392 bytes)
18. Re: [TenTec] 425 titan (score: 1): Author: "GARY HUBER" <glhuber@msn.com>; Date: Mon, 21 Jan 2008 08:59:11 -0600; Well, the back panel is "special" as it has a silk screened label: "MODEL 425E.... NOT FOR DOMESTIC SALE" Best regards, Gary - AB9M CSM(r) G.L.Huber 9679 Heron Bay Road Bloomington, Illinois 61704 (3; /archives//html/TenTec/2008-01/msg00428.html (9,718 bytes)
19. Re: [TenTec] 425 titan (score: 1): Author: "Ten-Tec Inc. Amateur Radio Sales" <sales@tentec.com>; Date: Mon, 21 Jan 2008 09:52:15 -0500; Yes -- 425E was the export model with 28 MHz enabled by the factory. Scott Robbins W4PA _______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.contesti; /archives//html/TenTec/2008-01/msg00451.html (9,602 bytes)
20. Re: [TenTec] 425 titan (score: 1): Author: "Ten-Tec Inc. Amateur Radio Sales" <sales@tentec.com>; Date: Mon, 21 Jan 2008 09:56:49 -0500; The intention was to allow legitimate manufacturers of amplifiers to have 28 MHz enabled "as shipped" rather than modified by an authorized user (licensed hams) as we've been doing over the past 30 y; /archives//html/TenTec/2008-01/msg00452.html (10,602 bytes)

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