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21. Re: [Amps] Interesting survey (score: 1): Author: "Steven Grant, W4IIV" <stevengrant98@yahoo.com>; Date: Wed, 11 Feb 2004 05:20:45 -0800 (PST); Thats a CB AM rating.....dead key is the carrier....swing is modulation steven W4IIV K6KWQ Dick "12 Volt radios are for wimps, real radios can kill you" Still can't make it go QRO with "More Power" _; /archives//html/Amps/2004-02/msg00080.html (8,123 bytes)
22. Re: [Amps] SB200 Power supply PCB artwork (score: 1): Author: "Steven Grant, W4IIV" <stevengrant98@yahoo.com>; Date: Thu, 12 Feb 2004 04:47:38 -0800 (PST); I'd like to make a fresh PCB. Regards and 73's Ian ZL2IAS _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps STEVE; /archives//html/Amps/2004-02/msg00088.html (7,712 bytes)
23. Re: [Amps] noisy sb1000 (score: 1): Author: "Steven Grant, W4IIV" <stevengrant98@yahoo.com>; Date: Tue, 16 Mar 2004 23:54:31 -0800 (PST); dont forget to check the power relay...that thing gets out of sorts, and it buzzes like crazy...........steven W4IIV "R.Measures" <r@somis.org> wrote:? Potting a transformer in polyester laminating r; /archives//html/Amps/2004-03/msg00185.html (8,255 bytes)
24. Re: [Amps] Re: insulation (score: 1): Author: "Steven Grant, W4IIV" <stevengrant98@yahoo.com>; Date: Fri, 26 Mar 2004 07:32:07 -0800 (PST); 4KV @4 AMPS?? you looking to knock birds out of the air with that thing? HI HI HI Steven W4IIV ? Cu wire with green insulation is not nearly as RF-tolerant as modern Type-WL high-temp, silicone-varni; /archives//html/Amps/2004-03/msg00301.html (9,490 bytes)
25. Re: [Amps] filament supply options (score: 1): Author: "Steven Grant, W4IIV" <stevengrant98@yahoo.com>; Date: Sat, 24 Apr 2004 10:45:59 -0700 (PDT); Hi steve the voltage shoud be 4.8 volts for maximum tube life. 5 volts or more will cut tube life with very little benifit. the reason AC is used has to do with biasing, 5 volts DC with this tube wil; /archives//html/Amps/2004-04/msg00175.html (9,176 bytes)
26. Re: [Amps] filament supply options (score: 1): Author: "Steven Grant, W4IIV" <stevengrant98@yahoo.com>; Date: Sun, 25 Apr 2004 06:53:54 -0700 (PDT); thanks for the tip...your correct...wouldnt using DC cause a bias condition that may cause linearity problems?.......steven ð Steve : 25v will typically bias a 3-500Z to cutoff. 5v is typical ope; /archives//html/Amps/2004-04/msg00194.html (8,648 bytes)
27. Re: [Amps] filament supply options (score: 1): Author: "Steven Grant, W4IIV" <stevengrant98@yahoo.com>; Date: Mon, 26 Apr 2004 17:14:07 -0700 (PDT); *in battery tubes, you would be correct, in the early days of radio, the tubes could not run on AC...they would hum...their thin filaments would vibrate, and not keep a constant temp, but the filamen; /archives//html/Amps/2004-04/msg00224.html (9,556 bytes)
28. Re: [Amps] 6146B vs 6146W (score: 1): Author: "Steven Grant, W4IIV" <stevengrant98@yahoo.com>; Date: Sun, 16 May 2004 21:18:56 -0700 (PDT); you may run the "W" if you wish the 6146B had different capacitances from the 6146, and 6146A, so the B would not work properly in older (and some newer) equiptment. it caused bad parasitics.....in m; /archives//html/Amps/2004-05/msg00142.html (8,592 bytes)
29. Re: [Amps] Centurion cooling improvement ideas for AM service (score: 1): Author: "Steven Grant, W4IIV" <stevengrant98@yahoo.com>; Date: Thu, 26 Aug 2004 11:14:08 -0700 (PDT); the reason they are doing this is because some folks love to have very bassey audio. thier egos say that they must have broadcast quality audio. i dont think they will do away with AM or 10m FM i do; /archives//html/Amps/2004-08/msg00338.html (13,221 bytes)
30. Re: [Amps] Audio BW -- Please just let us operate!! (score: 1): Author: "Steven Grant, W4IIV" <stevengrant98@yahoo.com>; Date: Fri, 27 Aug 2004 05:36:27 -0700 (PDT); hey Joe the issue is not the bassiness itself, the issue is that bass uses up so much power. i cannot copy a bass boosted signal at S-9 the op has to boost his high end so his "audience" can copy him; /archives//html/Amps/2004-08/msg00380.html (10,231 bytes)
31. Re: [Amps] re: baking out tubes (score: 1): Author: "Steven Grant, W4IIV" <stevengrant98@yahoo.com>; Date: Tue, 26 Oct 2004 09:50:54 -0700 (PDT); hey bill in normal operation, the grid can go negative in reation to the cathode--hense the grid will emit to the cathode if the grid gets hot, and it has barium oxide on it Steven I am confused, how; /archives//html/Amps/2004-10/msg00427.html (9,966 bytes)
32. Re: [Amps] Hallicrafters HT-1 (score: 1): Author: "Steven Grant, W4IIV" <stevengrant98@yahoo.com>; Date: Thu, 4 Nov 2004 12:13:10 -0800 (PST); try the hallicrafters reflector steven Can anyone give me an idea what price is fair for this unit. I want to refurbish and use it, not resell it. Jim W5SQE JAMES H. TOLAR, P.E. PRINCIPAL ELECTRICAL; /archives//html/Amps/2004-11/msg00082.html (8,467 bytes)
33. Re: [Amps] Heathkit spare parts? (score: 1): Author: "Steven Grant, W4IIV" <stevengrant98@yahoo.com>; Date: Tue, 30 Nov 2004 12:25:09 -0800 (PST); www.harbach.com Thomas Hoeppe <thomas.hoeppe@asamnet.de> wrote:Hello friends, last weekend I opened a SB220 for repair. The bandswitch had burned contacts on 10m and 15m. Maybe a simple overload, may; /archives//html/Amps/2004-11/msg00463.html (7,422 bytes)
34. Re: [Amps] Al 572 (score: 1): Author: "Steven Grant, W4IIV" <stevengrant98@yahoo.com>; Date: Wed, 22 Dec 2004 07:19:34 -0800 (PST); it does have a neutralization circuit steven Larry -- Does the AL-572 have a neutralization circuit? Tnx Richard L. Measures, AG6K, 805.386.3734. www.somis.org _______________________________________; /archives//html/Amps/2004-12/msg00256.html (8,706 bytes)
35. Re: [Amps] Al 572 (score: 1): Author: "Steven Grant, W4IIV" <stevengrant98@yahoo.com>; Date: Wed, 22 Dec 2004 11:52:24 -0800 (PST); this circuit may keep the tubes from oscillating at the operating frequency, but i fail to see how this can avoid VHF oscillations, since these components would have no affects there......too much in; /archives//html/Amps/2004-12/msg00267.html (9,230 bytes)
36. Re: [Amps] antennas that are 1:1 vswr all over the band (score: 1): Author: "Steven Grant, W4IIV" <stevengrant98@yahoo.com>; Date: Thu, 23 Dec 2004 17:41:47 -0800 (PST); there is one antenna that is 1.1 to 1 all over the spectrum, called a dummy load antenna this beast is terminated with a dummy load, and a dipole is parallel with it not efficient, but it does work..; /archives//html/Amps/2004-12/msg00301.html (12,689 bytes)
37. Re: [Amps] Solid State HF High power linear amps (score: 1): Author: "Steven Grant, W4IIV" <stevengrant98@yahoo.com>; Date: Thu, 31 Mar 2005 15:59:21 -0800 (PST); Be happy they no longer use 6 volt systems. a solid state amp for that would be a nightmare BMW is reportedly going to 42Volts. This makes much sense for starting diesel engines and QRO mobiles. Rich; /archives//html/Amps/2005-03/msg00750.html (10,207 bytes)
38. Re: [Amps] Spies In Computers (score: 1): Author: "Steven Grant, W4IIV" <stevengrant98@yahoo.com>; Date: Sun, 7 Aug 2005 17:29:41 -0700 (PDT); the reason Windows is the big one on the block was because it was more user friendly than any other OS that came out in the early 90s Steven - This seems doubtful since Windows® was intended to b; /archives//html/Amps/2005-08/msg00265.html (9,769 bytes)
39. Re: [Amps] CW and High Voltage (score: 1): Author: "Steven Grant, W4IIV" <stevengrant98@yahoo.com>; Date: Sat, 3 Sep 2005 01:09:42 -0700 (PDT); just reduce the exciter drive, the other method is hard on the tubes (excessive plate, and grid current) plus can genorate harmonics Steven I've acquired an older Henry 2K-4, which only has one High; /archives//html/Amps/2005-09/msg00017.html (8,832 bytes)
40. Re: [Amps] Alpha releases New Amp 9500 (score: 1): Author: "Steven Grant, W4IIV" <stevengrant98@yahoo.com>; Date: Fri, 16 Sep 2005 12:05:53 -0700 (PDT); i would like the new Alpha to havea mind meld option, so i will not require a computer.......just think about it. Steven W4IIV If Alpha furnishes the new amplifier with USB interface then anyone tryi; /archives//html/Amps/2005-09/msg00155.html (9,293 bytes)

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