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Total 17 documents matching your query.

1. [AMPS] SB-1000 (score: 1): Author: cburk001@juno.com (Charles W BWW Burkhardt); Date: Mon, 19 Mar 2001 11:02:47 -0600; Gentlemen: Many thanks to all who replied to my post about the SB-1000. I looked further into the grid bias circuit, as was suggested, and of course, found the 7.5 V Zener fried. Ordered one from Ame; /archives//html/Amps/2001-03/msg00170.html (6,733 bytes)
2. [AMPS] SB-1000 (score: 1): Author: 2@vc.net (measures); Date: Mon, 19 Mar 2001 09:17:53 -0800; A lower Rp parasitic suppressor might be prudent. See SB-1000 photos on my Web site. - Rich..., 805.386.3734, www.vcnet.com/measures. end -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submission; /archives//html/Amps/2001-03/msg00171.html (6,953 bytes)
3. [AMPS] SB-1000 (score: 1): Author: ford@cmgate.com (Ford Peterson); Date: Sat, 17 Jun 2000 19:38:25 -0500; I just got back from the Twins Lan swapfest in Minneapolis--loaded with goodies. I bought an SB-1000 from an estate that looks to be unmodified in any way. Are there mods out there that I should inve; /archives//html/Amps/2000-06/msg00230.html (6,854 bytes)
4. [AMPS] SB-1000 (score: 1): Author: rakefet@rakefet.com (Vic Rosenthal); Date: Sat, 17 Jun 2000 19:00:30 -0700; The stock plate RF choke may have a resonance near 17 meters. I replaced the one in mine with an Ameritron AL80B choke, which works well on all bands, including WARC. Cost about $25 from Ameritron. T; /archives//html/Amps/2000-06/msg00231.html (7,788 bytes)
5. [AMPS] SB-1000 (score: 1): Author: 2@vc.net (measures); Date: Sat, 17 Jun 2000 23:28:11 -0700; needs more C for hv bypass. 1000pF ain't enough for 80 or 160m needs a lower Q VHF suppressor to reduce VHF gain. needs high speed switching mod if used with modern radio. later, Ford - Rich..., 805; /archives//html/Amps/2000-06/msg00232.html (6,990 bytes)
6. [AMPS] SB-1000 (score: 1): Author: 2@vc.net (measures); Date: Sat, 17 Jun 2000 23:28:09 -0700; ? To see what's happening, loosely couple a spectrum analyzer to the anode. SB-1000/AL-80s are marginally stable. They tend to oscillate intermittently at 155MHz. Lower VHF Q suppressors are needed; /archives//html/Amps/2000-06/msg00233.html (7,563 bytes)
7. [AMPS] SB-1000 (score: 1): Author: w5hvv@aeneas.net (Rod Fitz-Randolph); Date: Sat, 23 Aug 1997 21:36:41 -0500; I received the following message this evening and I cannot answer the man because I simply don't know! Could any of you supply some info (tubes, plate voltage, power out, bands, input tuned or not, c; /archives//html/Amps/1997-08/msg00169.html (7,271 bytes)
8. [AMPS] SB-1000 (score: 1): Author: wrt@eskimo.com (Bill Turner); Date: Sun, 24 Aug 1997 02:48:48 GMT; <><><><><><><><><><><><><><><><><><><><><><><><><><><><> I have an SB-1000 and it's a very good unit, provided it was assembled properly, of course. It will put out 1kw peak on SSB and CW, but RTTY s; /archives//html/Amps/1997-08/msg00170.html (8,066 bytes)
9. [Amps] sb-1000 (score: 1): Author: Tim _W1WCI <kb1gfv@arrl.net>; Date: Thu, 12 Feb 2004 19:30:01 -0500; I am about to re-wire my sb-1000 for 240 volt operation. I am confussed by the schematic that I found at www.g0ngg.co.uk The schematic shows the fan wires (purple) wired to terminals 3 and 5 on the b; /archives//html/Amps/2004-02/msg00092.html (7,139 bytes)
10. Re: [Amps] sb-1000 (score: 1): Author: Gudguyham@aol.com; Date: Fri, 13 Feb 2004 07:21:13 EST; TIM, the 120volts for the fan when the amp is plugged in for 240v operation is derived from one leg of the 120 from the wall socket and the neutral is derived from the center tap of the dual primary; /archives//html/Amps/2004-02/msg00096.html (7,995 bytes)
11. [Amps] SB-1000 (score: 1): Author: "Paul Elliott" <paab@valornet.com>; Date: Mon, 1 Oct 2007 21:11:43 -0000; Some years ago there was posted a suggestion to help protect the output tank circuit of the SB-1000 from parasitic resonances. As I recall, it involved a small silver mica capacitor and the 40 m tap; /archives//html/Amps/2007-10/msg00015.html (6,464 bytes)
12. [Amps] SB-1000 (score: 1): Author: "Joe Frank" <jfrank002@neo.rr.com>; Date: Wed, 27 Aug 2008 14:01:26 -0400; Built my SB 1000 about 10 to 12 years ago but was travelling a lot and used ALS 500 in motor home so SB 1000 has had little use. Initial start up was normal except for one quirk. Resonant point for p; /archives//html/Amps/2008-08/msg00152.html (7,987 bytes)
13. Re: [Amps] SB-1000 (score: 1): Author: "Van K7VS" <wa7fab@cdsnet.net>; Date: Fri, 29 Aug 2008 08:28:08 -0700; I have one that exhibits the same characteristics. -- I am using the free version of SPAMfighter for private users. It has removed 1392 spam emails to date. Paying users do not have this message in t; /archives//html/Amps/2008-08/msg00154.html (9,605 bytes)
14. Re: [Amps] SB-1000 (score: 1): Author: Pat Barthelow <aa6eg@hotmail.com>; Date: Fri, 29 Aug 2008 09:09:36 -0700; Joe, I would carefully fabricate an inductor of known dimensions, say, 1" diameter, say 10 turns, figure out the calculated inductance, measure it, if you can. Connect out of cirucuit to each doorkno; /archives//html/Amps/2008-08/msg00157.html (8,239 bytes)
15. Re: [Amps] SB-1000 (score: 1): Author: "Carl" <km1h@jeremy.mv.com>; Date: Fri, 29 Aug 2008 12:34:35 -0400; Is that into an antenna or a known 50 Ohm dummy load? As long as it tunes from 3.5 to 4.0 I wouldnt worry. The tuning point is fixed by the LC of the tank circuit. Carl KM1H _________________________; /archives//html/Amps/2008-08/msg00158.html (9,179 bytes)
16. Re: [Amps] SB-1000 (score: 1): Author: "Robert Kirkland" <alpha76@triton.net>; Date: Fri, 29 Aug 2008 15:07:46 -0400; Joe, Not familiar with the SB-1000 but if it works on all other freq's then of course the 75/80 Meter circuitry is suspect. The most obvious part would be the C1 padder if the amp uses one. Second is; /archives//html/Amps/2008-08/msg00164.html (7,366 bytes)
17. Re: [Amps] SB-1000 (score: 1): Author: "Tom Mandera" <tsm1@tmcom.com>; Date: Tue, 10 Mar 2009 12:09:01 -0600 (MDT); Got it. I'll check the current by just shorting the relay connector without the exciter/radio connected or on, but with a load affixed to the RF out. This does help explain why 100ma would be the min; /archives//html/Amps/2009-03/msg00290.html (11,159 bytes)

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