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Total 133 documents matching your query.

21. Re: [Amps] Regulations (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Wed, 09 Oct 2013 19:19:03 -0400
Is there a list of your results online somewhere? Sherwood has a list of receivers. It would be nice for there to be an online list of transmitter specs as well. Any chance you tested the Icom IC-720
/archives//html/Amps/2013-10/msg00161.html (9,216 bytes)

22. Re: [Amps] Regulations (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Wed, 09 Oct 2013 21:32:20 -0400
From what our teen son is learning from Aussie friends online many there rarely speak a sentence of any sort without a vulgarity added! Odd cultural norm ... not that Hollywood & pop music losers are
/archives//html/Amps/2013-10/msg00167.html (8,992 bytes)

23. Re: [Amps] Regulations (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Wed, 09 Oct 2013 22:15:13 -0400
Well played ... And none of us are biting. 73, Alek. VK6APK *&^%$(!!! :-) -- Thanks! & 73, KD4E.com David Colburn - Nevils, Georgia USA Search with: duckduckgo.com Android for Hams: groups.yahoo.com/
/archives//html/Amps/2013-10/msg00170.html (8,505 bytes)

24. Re: [Amps] Electrical Distribution Methods (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Tue, 15 Oct 2013 10:54:04 -0400
Paul, It sounds as though you may have answered your own question. Perhaps consider the economics of lightning damage and then ask your question again? Just a guess as no one would ever confuse me wi
/archives//html/Amps/2013-10/msg00259.html (8,945 bytes)

25. Re: [Amps] UHF Connectors (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Tue, 12 Nov 2013 14:50:38 -0500
Watch out for the UHF elbow adapters as well. Some are so poorly made they may arc internally to the shell. It depends on the quality of the UHF series connectors as to how much loss. A number of yea
/archives//html/Amps/2013-11/msg00257.html (12,882 bytes)

26. [Amps] Copper spreader, heatsink, boards (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Wed, 11 Dec 2013 12:17:59 -0500
I have some amp parts that need a new home: Copper spreader 5 1/2" x 15" & heatsink 8" x 15" from 1.2KW HF amp. Three boards rated for 300w each, two complete with two MRF422's, one w/o devices. Shou
/archives//html/Amps/2013-12/msg00079.html (7,691 bytes)

27. Re: [Amps] Copper spreader, heatsink, boards (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Wed, 11 Dec 2013 12:28:20 -0500
Accidentally left out the price on this. Asking $150. (obo) plus the $15.30 shipping. I have some amp parts that need a new home: Copper spreader 5 1/2" x 15" & heatsink 8" x 15" from 1.2KW HF amp. T
/archives//html/Amps/2013-12/msg00080.html (7,562 bytes)

28. Re: [Amps] KM1H vs. W8JI (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Thu, 12 Dec 2013 10:51:31 -0500
Did you forget the decimal point between the 2 and the 5? ;-) Is that input or output? How did you measure it? Is the rating ICAS or CAS? Are you sure? What happens when the wind blows, the antenna S
/archives//html/Amps/2013-12/msg00100.html (7,376 bytes)

29. Re: [Amps] KM1H vs. W8JI (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Fri, 13 Dec 2013 10:48:06 -0500
Curiosity question ... since we are indulging in whimsey ... I've read that many tubes run cleaner nearer to their upper limits than lower. Is that also true of the 3CX-3000A7 and similar? If so isn'
/archives//html/Amps/2013-12/msg00106.html (7,987 bytes)

30. Re: [Amps] KM1H vs. W8JI (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Fri, 13 Dec 2013 13:16:39 -0500
As I understand the 'physics' (explained to me, not based on my raw physics knowledge) the steps with measurable-meaning at the received end are approximately 100w, 600w, 1200w. I've been running 1 K
/archives//html/Amps/2013-12/msg00108.html (8,334 bytes)

31. Re: [Amps] Runaway Plate Current (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Sat, 28 Dec 2013 17:26:39 -0500
Working on an amp at 1:30 in the morning? ;-) Seriously, I'm guessing the cause will be on a very short list soon to be posted by the amp gurus here. I'm curious to learn the reason as well - not tha
/archives//html/Amps/2013-12/msg00162.html (8,497 bytes)

32. Re: [Amps] "N" Connector (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Sun, 29 Dec 2013 18:36:37 -0500
Couldn't you install a coax strain-relief to eliminate the problem? I've had bad experience with N connectors on long runs of coax in the wintertime. My theory, unsupported either by other facts or l
/archives//html/Amps/2013-12/msg00172.html (9,250 bytes)

33. [Amps] FS: Heart of 600w SS HF Amp (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Sun, 29 Dec 2013 19:35:24 -0500
I have a pair of fully populated used dual-MRF422 boards with the matching copper spreader and heat sink. Includes some other parts, e.g. fan, terminal board, etc. associated with an abandoned HF amp
/archives//html/Amps/2013-12/msg00174.html (7,089 bytes)

34. Re: [Amps] K8RA SK (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Thu, 02 Jan 2014 19:05:19 -0500
Wow, a skilled builder at all he did, amps, keys, etc. He was far too young ... Jerry Pittenger K8RA -- David (NOT Dave) Colburn, KD4E - Nevils, Georgia USA Safe & Secure Search Engine: duckduckgo.co
/archives//html/Amps/2014-01/msg00012.html (6,934 bytes)

35. Re: [Amps] 811H pops fuses (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Sat, 18 Jan 2014 17:48:25 -0500
Have you checked the relay? HI All I have an AL-811H that I've had for about a month. It has been working OK until last night. I was making a contact and all of a sudden, it started chattering and bl
/archives//html/Amps/2014-01/msg00147.html (8,088 bytes)

36. Re: [Amps] Tube swap (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Mon, 27 Jan 2014 22:09:12 -0500
Karel, Y'all really ought to bring that thing in out of the cold and snow ... ;-) Right now my amp stuff in under 4 feet of snow here in western Ontario. Karel, VA3KO -- David (NOT Dave) Colburn, KD4
/archives//html/Amps/2014-01/msg00262.html (8,830 bytes)

37. [Amps] Recommended Tuner for Clipperton L (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Sat, 01 Feb 2014 15:31:58 -0500
The Clipperton L, when tweaked to run efficiently, is supposed to get 1200w+ out from 160-10m. Anything other than a Dentron MT-2000 or MT-3000 built right & use a tapped inductor? I know I'd need to
/archives//html/Amps/2014-02/msg00006.html (7,024 bytes)

38. Re: [Amps] Recommended Tuner for Clipperton L (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Sun, 02 Feb 2014 14:11:27 -0500
Weird amps list error the first try - trying again ... Roger, Would you please explain "hiss"? What, precisely, is happening to create that sound? There are so few parts involved it seems that there'
/archives//html/Amps/2014-02/msg00011.html (9,252 bytes)

39. Re: [Amps] Recommended Tuner for Clipperton L (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Sun, 02 Feb 2014 16:51:51 -0500
Roger, That's why I'm looking only at non-roller/rotary inductor tuners - to remove the mechanical movement variable and the concern about an under-rated device in an affordable tuner. Don't both the
/archives//html/Amps/2014-02/msg00013.html (9,752 bytes)

40. Re: [Amps] Recommended Tuner for Clipperton L (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Sun, 02 Feb 2014 17:32:52 -0500
I bypassed the Murch because they are designed for 80-10m and use roller/rotary inductors. I have owned one in the past & it appeared to be well made. One of the often overlooked Tuners are the Murch
/archives//html/Amps/2014-02/msg00016.html (9,535 bytes)

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