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21. Re: [Amps] SWR and amplifiers (score: 1): Author: donroden@xxxxxxxxxx; Date: Thu, 25 May 2017 09:09:33 -0500; Thank You. VERY important Question ! Don W4DNR Quoting Peter Voelpel <dj7ww@xxxxxxxxxxx>: And how can it enter into it? 73 Peter, DJ7WW _______________________________________________ Amps mailing li; /archives//html/Amps/2017-05/msg00320.html (9,310 bytes)
22. Re: [Amps] SWR and amplifiers (score: 1): Author: "Carl" <km1h@xxxxxxxxxxxxxxxx>; Date: Thu, 25 May 2017 11:58:24 -0400; But the Bird manual is very clear and even the 2 way shop users understand that. Carl Just like the clock that is only correct twice a day, even the highly regarded Bird 43 "wattmeter" isn't always m; /archives//html/Amps/2017-05/msg00321.html (13,165 bytes)
23. Re: [Amps] SWR and amplifiers (score: 1): Author: donroden@xxxxxxxxxx; Date: Thu, 25 May 2017 11:24:48 -0500; Agreed. Don W4DNR Quoting sm0aom@xxxxxxxxx: You of course need an adjustable output network that can be adjusted to present a conjugate match. Otherwise, the mismatch loss at the junction between the; /archives//html/Amps/2017-05/msg00322.html (8,986 bytes)
24. Re: [Amps] SWR and amplifiers (score: 1): Author: Manfred Mornhinweg <manfred@xxxxxxxxx>; Date: Thu, 25 May 2017 17:32:18 +0000; Bill, and all, this discussion is just too much fun to abstain from adding my own input to it! So, here are my answers to your questions, and then an explanation: Let's say my SWR meter indicates 100; /archives//html/Amps/2017-05/msg00323.html (16,081 bytes)
25. Re: [Amps] SWR and amplifiers (score: 1): Author: "Paul Christensen" <w9ac@xxxxxxxx>; Date: Thu, 25 May 2017 15:57:27 -0400; Karl and all... Does anyone know of a computation that predicts the level of power absorption in an amplifier (or classic generator) based on operating class and reflection coefficient? This is an a; /archives//html/Amps/2017-05/msg00324.html (10,175 bytes)
26. [Amps] SWR and amplifiers (score: 1): Author: "Jim Thomson" <jim.thom@xxxxxxxxx>; Date: Thu, 25 May 2017 13:32:20 -0700; <If the output stage is broad-band tuned and biased in Class A, it will absorb some or all of the reflected wave which may increase heat losses. In this case, the reflected wave is not re-reflected a; /archives//html/Amps/2017-05/msg00325.html (6,763 bytes)
27. [Amps] SWR and amplifiers (score: 1): Author: "Jim Thomson" <jim.thom@xxxxxxxxx>; Date: Thu, 25 May 2017 13:45:16 -0700; <And some of the reflected power ends up as < "waste heat" in the final and tank circuit. that the Pi or PI-L presents to the reflected power. The reflected power bounces off the PI or PI-L..for yet; /archives//html/Amps/2017-05/msg00326.html (8,229 bytes)
28. Re: [Amps] SWR and amplifiers (score: 1): Author: Ron Youvan <ka4inm@xxxxxxxxx>; Date: Thu, 25 May 2017 16:49:47 -0400; Paul W9AC Christensen: "If the output stage is broad-band tuned and biased in Class A, it will absorb some or all of the reflected wave which may increase heat losses. In this case, the reflected wav; /archives//html/Amps/2017-05/msg00327.html (11,730 bytes)
29. Re: [Amps] SWR and amplifiers (score: 1): Author: Manfred Mornhinweg <manfred@xxxxxxxxx>; Date: Thu, 25 May 2017 21:58:43 +0000; On the subject of whether an amplifier will absorb power applied to its output connector - "reflected power" or otherwise: It does not depend fundamentally on the class of operation. Instead it depen; /archives//html/Amps/2017-05/msg00328.html (10,713 bytes)
30. Re: [Amps] SWR and amplifiers (score: 1): Author: "Gary Schafer" <garyschafer@xxxxxxxxxxxxxx>; Date: Thu, 25 May 2017 17:31:01 -0500; With a tuned output circuit there is a conjugate match between the output circuit and the feed line. This causes any reflected power to be re-reflected back to the feed line. There is no conjugate ma; /archives//html/Amps/2017-05/msg00329.html (11,588 bytes)
31. Re: [Amps] SWR and amplifiers (score: 1): Author: Manfred Mornhinweg <manfred@xxxxxxxxx>; Date: Fri, 26 May 2017 02:10:50 +0000; Gary, With a tuned output circuit there is a conjugate match between the output circuit and the feed line. This causes any reflected power to be re-reflected back to the feed line. There is no conjug; /archives//html/Amps/2017-05/msg00331.html (8,929 bytes)
32. [Amps] SWR and amplifiers (score: 1): Author: "Jim Thomson" <jim.thom@xxxxxxxxx>; Date: Fri, 26 May 2017 05:31:27 -0700; <On the subject of whether an amplifier will absorb power applied to its <output connector - "reflected power" or otherwise: It does not depend fundamentally on the class of operation. Instead it dep; /archives//html/Amps/2017-05/msg00335.html (10,139 bytes)
33. Re: [Amps] SWR and amplifiers (score: 1): Author: Manfred Mornhinweg <manfred@xxxxxxxxx>; Date: Fri, 26 May 2017 19:00:42 +0000; Jim, That's right, of course, as long as you think in the conventional current sense. People who think in the true electron motion sense will certainly claim that a tube can _only_ source, and never; /archives//html/Amps/2017-05/msg00341.html (10,094 bytes)
34. Re: [Amps] SWR and amplifiers (score: 1): Author: Steve Thompson <g8gsq72@xxxxxxxxx>; Date: Sat, 27 May 2017 08:45:33 +0100; If you think of the tube/transistor as a varying resistance, it doesn't matter which way the current flows :-) Steve That's right, of course, as long as you think in the conventional current sense. P; /archives//html/Amps/2017-05/msg00342.html (8,154 bytes)

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