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1. [AMPS] MFJ-259 and matching circuits (score: 1): Author: K3BU@aol.com (K3BU@aol.com); Date: Fri, 5 Feb 1999 10:06:16 EST; << An interesting test would be to plot the input VSWR of the amp as a function of drive level. If the departure from linear behavior is as significant as everyone seems to be claiming, then you woul; /archives//html/Amps/1999-02/msg00170.html (8,586 bytes)
2. [AMPS] Homebrew 3-500 need help (score: 1): Author: K3BU@aol.com (K3BU@aol.com); Date: Sat, 6 Feb 1999 11:44:15 EST; << So straighten me out? Why am I seeing 1400 to 1500 at the beginning and then it falls back with two tubes? But with one tube it stays pretty constant at 1100? >> More description needed about amp; /archives//html/Amps/1999-02/msg00208.html (7,538 bytes)
3. [AMPS] Filament Choke Question (RE: Handbook example) (score: 1): Author: K3BU@aol.com (K3BU@aol.com); Date: Sat, 20 Feb 1999 12:19:19 EST; << Is the 8877 set up this way so that the filament pins are isolated from the cathode? Is that why he's able to get away with it? I'm ignorant of how the 8877 is set up. Yep, that is the beauty of 8; /archives//html/Amps/1999-02/msg00533.html (8,334 bytes)
4. [AMPS] Hamfest amp (score: 1): Author: K3BU@aol.com (K3BU@aol.com); Date: Wed, 24 Feb 1999 12:10:29 EST; << I am sure glad he didn't decide to key up while I was within a mile of him. He was running 7/8" hard-line on the output to the antennas. My point is it is such a shame for this type of amp go to s; /archives//html/Amps/1999-02/msg00655.html (8,255 bytes)
5. [AMPS] Plate load charts (score: 1): Author: K3BU@aol.com (K3BU@aol.com); Date: Wed, 6 Jan 1999 12:50:39 EST; << At 2KW input the average SB-220 will crank out a massive 900-1000W on 10M for 45-50% efficiency. OTOH, with all that HF stuff removed and rebuilt strictly for 6M the power out will be 60-65% effic; /archives//html/Amps/1999-01/msg00083.html (10,006 bytes)
6. [AMPS] ARRL (score: 1): Author: K3BU@aol.com (K3BU@aol.com); Date: Tue, 26 Jan 1999 19:03:09 EST; << The technical and competitive aspects of amateur radio must now be addressed in separate magazines (both QST and CQ have these sister magazines). Perhaps this is good as it allows more comprehensi; /archives//html/Amps/1999-01/msg00426.html (8,750 bytes)
7. [AMPS] ARRL and QST (score: 1): Author: K3BU@aol.com (K3BU@aol.com); Date: Wed, 27 Jan 1999 09:26:07 EST; << I have an extra class and am proud of it, but I don't see any point in forcing someone else to learn something against their will. The operative word here is HOBBY, remember? Nobody is forcing any; /archives//html/Amps/1999-01/msg00470.html (9,527 bytes)
8. [AMPS] ARRL and QST (and CW Relevance) (score: 1): Author: K3BU@aol.com (K3BU@aol.com); Date: Thu, 28 Jan 1999 15:03:46 EST; << This, I guess, is why the Coast Guard, the military, and ships at sea have all dropped CW as being inefficient and archaic. Andy K5VM >> All the above entities are not known for being significantl; /archives//html/Amps/1999-01/msg00546.html (8,637 bytes)
9. [AMPS] Operating comments using the Emtron DX-2a (score: 1): Author: K3BU@aol.com (K3BU@aol.com); Date: Sun, 31 Jan 1999 17:43:59 EST; << Sounds good to me - but at 3 months salary a little steep!! Oh well I guess you have to pay for good quality rf items these days. John ZS5JF Comes back to old rule: If you got no money, but you go; /archives//html/Amps/1999-01/msg00667.html (8,928 bytes)
10. [AMPS] Henry 8K at 1500 watts Out -- Warning Long (score: 1): Author: K3BU@aol.com (K3BU@aol.com); Date: Wed, 9 Dec 1998 16:02:59 EST; NO, buying "regular commercial" amplifier is more like having a Porshe with a lawnmover engine and bicycle wheels. For contesting, most of "commercial" amplifiers go up in smoke after a couple of hou; /archives//html/Amps/1998-12/msg00173.html (8,876 bytes)
11. [AMPS] Fw: [TenTec] Titan info (score: 1): Author: K3BU@aol.com (K3BU@aol.com); Date: Mon, 9 Nov 1998 23:03:32 EST; He is using QSK and using up life cycle of relays in no time. Milion cycles can be "spent" in few contests when using QSK - relays working on and off with every dash and dot. I use foot switch and sw; /archives//html/Amps/1998-11/msg00147.html (7,726 bytes)
12. [Amps] 10dB and propagation (score: 1): Author: K3BU@aol.com; Date: Sun, 6 Feb 2005 09:40:26 EST; Box/8170 amplifier. Even though I had measured the amplifier's voltage-gain as x10 with an oscilloscope (20db power-gain), but on the air, I measured 20 - 23db with my calibrated S-meter. Other peopl; /archives//html/Amps/2005-02/msg00190.html (9,410 bytes)
13. Re: [Amps] 10dB and propagation (score: 1): Author: K3BU@aol.com; Date: Sun, 6 Feb 2005 18:08:32 EST; gain, and an amplifier advertised at 1500 watts and yet be 15 db down from other local stations who were using 3 element mono-banders. Since the power limit is 1500 watts, they would naturally have b; /archives//html/Amps/2005-02/msg00207.html (8,136 bytes)
14. Re: [Amps] 10dB and propagation (score: 1): Author: K3BU@aol.com; Date: Mon, 7 Feb 2005 10:12:25 EST; wrote that. A Quick look at 'Cornell University's School of Electrical Engineering Publications'<< I do not claim to "inventing" refraction. What I was trying to convey (with my rough English) that t; /archives//html/Amps/2005-02/msg00220.html (10,712 bytes)
15. Re: [Amps] 10dB and propagation (score: 1): Author: K3BU@aol.com; Date: Mon, 7 Feb 2005 10:23:43 EST; OK, do some calculating: During the contest, like CQ WW you would have on average about 600 stations CQing their heads off with 1.5 kW into about 10 dB antennas. Some running "plywood boxes" so err; /archives//html/Amps/2005-02/msg00221.html (8,075 bytes)
16. Re: [Amps] 10dB and propagation (score: 1): Author: K3BU@aol.com; Date: Mon, 7 Feb 2005 20:53:19 EST; contributing to the heat-death of the universe?<< Shhh, don't let envirowackos know about this, they would add it to "global warming" and destruction from SUVs, and we will be sentenced to miliwatts.; /archives//html/Amps/2005-02/msg00277.html (8,360 bytes)
17. Re: [Amps] 10dB and propagation (score: 1): Author: K3BU@aol.com; Date: Mon, 7 Feb 2005 21:13:50 EST; Thank you for your diagnosis Doctor :-) The title and "innovative" etc. stuff was inserted by the editors of CQ, I saw it after the issue came out. I tried to use fiber optic analogy to illustrate th; /archives//html/Amps/2005-02/msg00278.html (8,780 bytes)

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