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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[AMPS\]\s+Input\s+matching\s+experiment\s*$/: 31 ]

Total 31 documents matching your query.

1. [AMPS] Input matching experiment (score: 1)
Author: jstrohm@texas.net (Jim Strohm)
Date: Sun, 13 Jan 2002 18:17:22 -0600
Hi The latest swapfest yielded up an old ultrasonic generator with an 812A. In my stacks of comic boo^H^H^H^H^H^H^H^H^H ARRL handbooks, I find a reference that the input impedance of a cathode-fed 81
/archives//html/Amps/2002-01/msg00093.html (8,466 bytes)

2. [AMPS] Input matching experiment (score: 1)
Author: g8gsq@qsl.net (Steve Thompson)
Date: Mon, 14 Jan 2002 07:41:44 -0000
Steve -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contesting.com Problems: owner-amps@contesting.com
/archives//html/Amps/2002-01/msg00096.html (10,040 bytes)

3. [AMPS] Input matching experiment (score: 1)
Author: W8JI@contesting.com (Tom Rauch)
Date: Mon, 14 Jan 2002 06:45:23 -0500
812's have higher driving impedances than 811's, and less gain in GG. They also take high bias voltage. A matching system in a GG class B or AB amplifier serves three important functions: 1.) It mat
/archives//html/Amps/2002-01/msg00097.html (8,537 bytes)

4. [AMPS] Input matching experiment (score: 1)
Author: na9d-2@speakeasy.net (Jon Ogden)
Date: Fri, 18 Jan 2002 07:17:53 -0600
Tom, Correct me if I am wrong, but doesn't the literature lists one more reason for having an LC based matching network in you amp? It tends to act as an energy storage medium for when the tube is in
/archives//html/Amps/2002-01/msg00121.html (8,846 bytes)

5. [AMPS] Input matching experiment (score: 1)
Author: w8ron@stratos.net (Ron)
Date: Fri, 18 Jan 2002 16:05:56 -0500
I think what you see here is maximum power transfer that occurs when the source impedance is equal to the load impedance . Without the network, they are not equal. With the network , well , they are.
/archives//html/Amps/2002-01/msg00122.html (9,905 bytes)

6. [AMPS] Input matching experiment (score: 1)
Author: jstrohm@texas.net (Jim Strohm)
Date: Fri, 18 Jan 2002 08:37:51 -0600
Considering the wide range of answers I've received, as well as what certain "experts" have said vis-a-vis the "conventional" wisdom found in some 50-year-old publications, I think it's time to hook
/archives//html/Amps/2002-01/msg00123.html (8,502 bytes)

7. [AMPS] Input matching experiment (score: 1)
Author: W8JI@contesting.com (Tom Rauch)
Date: Fri, 18 Jan 2002 11:18:09 -0500
It is much more complex than that, because the load is very nonlinear over the RF cycle causing harmonics to be generated, so you have to look at the real action which is much more complex than just
/archives//html/Amps/2002-01/msg00124.html (9,218 bytes)

8. [AMPS] Input matching experiment (score: 1)
Author: W8JI@contesting.com (Tom Rauch)
Date: Fri, 18 Jan 2002 11:18:08 -0500
I just assume everyone understands a bandpass or low pass circuit with a reasonable working resonant Q also can not abruptly change voltage. But I believe the low-pass low-cathode-impedance descript
/archives//html/Amps/2002-01/msg00125.html (9,256 bytes)

9. [AMPS] Input matching experiment (score: 1)
Author: w5lu@hotmail.com (S. J. Blackwell)
Date: Fri, 18 Jan 2002 17:07:51 +0000
Jim, Please set the 812A GG amp with the broad band untuned input to operate on the 220MHz band. Good luck, Sam, W5LU To: <amps@contesting.com> _______________________________________________________
/archives//html/Amps/2002-01/msg00126.html (10,091 bytes)

10. [AMPS] Input matching experiment (score: 1)
Author: jstrohm@texas.net (jstrohm@texas.net)
Date: Fri, 18 Jan 2002 12:31:06 -0500
HEEHEEHEEHEE Actually, I had planned to attach the output to a TS-117 dummy load and monitor temperature rise, and feed the input with a variety of QRP HF rigs, or with a sig gen driving a broadband
/archives//html/Amps/2002-01/msg00127.html (10,013 bytes)

11. [AMPS] Input matching experiment (score: 1)
Author: Wlfuqu00@uky.edu (wlfuqu00@uky.edu)
Date: Fri, 18 Jan 2002 12:28:09 -0500
Gee how time flies...is it April 1 already? 73 Bill wa4lav To: <amps@contesting.com> -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Administrative requests: amps-R
/archives//html/Amps/2002-01/msg00128.html (10,947 bytes)

12. [AMPS] Input matching experiment (score: 1)
Author: 2@mail.vcnet.com (rich)
Date: Fri, 18 Jan 2002 10:00:50 -0800
? hope springs eternal. - R. L. Measures, 805.386.3734,AG6K, www.vcnet.com/measures. end -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Administrative requests: a
/archives//html/Amps/2002-01/msg00129.html (9,371 bytes)

13. [AMPS] Input matching experiment (score: 1)
Author: W8JI@contesting.com (Tom Rauch)
Date: Fri, 18 Jan 2002 17:31:45 -0500
So what is it you question or doubt? Do you doubt a device that conducts less than 360 degrees of the RF cycle produces harmonics? Do you doubt the harmonics fed back into the output of a radio will
/archives//html/Amps/2002-01/msg00131.html (8,920 bytes)

14. [AMPS] Input matching experiment (score: 1)
Author: jstrohm@texas.net (Jim Strohm)
Date: Fri, 18 Jan 2002 16:35:55 -0600
I question dogmatic thinking. I question bombastic spokesmen who insist that theirs is the One True Word, Excluding All Others. And when I have a theory or line of inquiry that I can test out with a
/archives//html/Amps/2002-01/msg00132.html (9,336 bytes)

15. [AMPS] Input matching experiment (score: 1)
Author: na9d-2@speakeasy.net (Jon Ogden)
Date: Fri, 18 Jan 2002 17:54:06 -0600
I wouldn't call walking where others have walked "dogmatic" thinking. It is silly to blaze a path through a mine field by yourself, when there are footprints from others who have walked through it. T
/archives//html/Amps/2002-01/msg00133.html (9,779 bytes)

16. [AMPS] Input matching experiment (score: 1)
Author: 2@mail.vcnet.com (rich)
Date: Fri, 18 Jan 2002 16:09:53 -0800
// Sounds like he may doubt certain "experts". I would like to hear about his test results - R. L. Measures, 805.386.3734,AG6K, www.vcnet.com/measures. end -- FAQ on WWW: http://www.contesting.com/F
/archives//html/Amps/2002-01/msg00134.html (9,229 bytes)

17. [AMPS] Input matching experiment (score: 1)
Author: 2@mail.vcnet.com (rich)
Date: Fri, 18 Jan 2002 16:09:55 -0800
? Do you believe that Ni-Cr alloy has reverse RF skin-effect (more R with less freq.)? ? In October of 1992, only a few centuries late, Pope John Paul II acknowledged that Earth revolves around the
/archives//html/Amps/2002-01/msg00135.html (10,199 bytes)

18. [AMPS] Input matching experiment (score: 1)
Author: carlseye@tampabay.rr.com (carl seyersdahl)
Date: Fri, 18 Jan 2002 19:26:56 -0500
In reference to the subject matter. I have an article here written by a ham in spain and published by Svetlana several years ago. This gentleman built an amp, single 572B, using a home made rf choke
/archives//html/Amps/2002-01/msg00136.html (10,995 bytes)

19. [AMPS] Input matching experiment (score: 1)
Author: W8JI@contesting.com (Tom Rauch)
Date: Fri, 18 Jan 2002 19:43:02 -0500
Hi Jim, Why waste everyone's time asking a question if (in your own mind) you already know you won't accept any answer except the one you want to hear? Why not just post the answer, instead of a ques
/archives//html/Amps/2002-01/msg00137.html (9,368 bytes)

20. [AMPS] Input matching experiment (score: 1)
Author: 2@mail.vcnet.com (rich)
Date: Fri, 18 Jan 2002 16:49:57 -0800
... // Not all who say they have walked a path have been there. This seems to especially apply to groupies. // For linear applications when the tube is conducting, it is never at saturation. - R. L.
/archives//html/Amps/2002-01/msg00138.html (9,909 bytes)


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