Mail Archive Search: <+subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+grid\s+resonance\s*$/>

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+grid\s+resonance\s*$/: 90 ]

Total 90 documents matching your query.

61. Re: [Amps] grid resonance (score: 1): Author: Peter Chadwick <g3rzp@g3rzp.wanadoo.co.uk>; Date: Mon, 7 Aug 2006 11:57:02 +0200 (CEST); in that loop to understand what the frequency of the observed dip might be telling us about reverse feed-through from the anode back to the cathode.< Which is where a network analyser (another machin; /archives//html/Amps/2006-08/msg00246.html (8,306 bytes)
62. Re: [Amps] grid resonance (score: 1): Author: "Phil Clements" <philc@texascellnet.com>; Date: Mon, 7 Aug 2006 07:14:44 -0500; Ian, Are you saying that a GDO can only dip a "circuit?" (((73))) Phil, K5PC _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman; /archives//html/Amps/2006-08/msg00247.html (8,477 bytes)
63. Re: [Amps] grid resonance (score: 1): Author: Ian White GM3SEK <gm3sek@ifwtech.co.uk>; Date: Mon, 7 Aug 2006 13:43:51 +0100; I'm saying you can't even have an L-C resonance without a circuit - literally a closed, hard-wired loop. For example, if you simply connect an L and a C in series, with opposite ends floating, you do; /archives//html/Amps/2006-08/msg00248.html (9,208 bytes)
64. Re: [Amps] grid resonance (score: 1): Author: "k7fm" <k7fm@teleport.com>; Date: Mon, 7 Aug 2006 06:49:51 -0700; "The grid in a "grounded grid" amplifier is a case in point. It is behaving as an inductive length of wire, terminated inside the tube by some distributed capacitance to the anode and the cathode...; /archives//html/Amps/2006-08/msg00249.html (13,220 bytes)
65. Re: [Amps] grid resonance (score: 1): Author: R L Measures <r@somis.org>; Date: Mon, 7 Aug 2006 05:52:48 -0700; Well put, Ian. It tells me that the grounded grid is no longer acting as a perfectly wondrous shield between the anode and the cathode. The dip means that the entire circuit has a resonance at that f; /archives//html/Amps/2006-08/msg00252.html (11,787 bytes)
66. Re: [Amps] grid resonance (score: 1): Author: "Phil Clements" <philc@texascellnet.com>; Date: Mon, 7 Aug 2006 10:33:27 -0500; I agree with all of the above. Someone should have said this about 75 posts back to enlighten the multitudes of readers on the reflector. About 50% of the questions would not have had to be answered; /archives//html/Amps/2006-08/msg00257.html (9,858 bytes)
67. Re: [Amps] grid resonance (score: 1): Author: TexasRF@aol.com; Date: Mon, 7 Aug 2006 11:43:59 EDT; I agree with all of the above. Someone should have said this about 75 posts back to enlighten the multitudes of readers on the reflector. About 50% of the questions would not have had to be answered.; /archives//html/Amps/2006-08/msg00258.html (9,870 bytes)
68. Re: [Amps] grid resonance (score: 1): Author: Ian White GM3SEK <gm3sek@ifwtech.co.uk>; Date: Mon, 7 Aug 2006 16:53:58 +0100; Sorry, wondrousness is not a valid SI unit. I thought the intention of a measurement was to quantify something. Probably not - but the instrument never tells you what that dip MEANS, and with a dipme; /archives//html/Amps/2006-08/msg00260.html (9,521 bytes)
69. Re: [Amps] grid resonance (score: 1): Author: Bill Turner <dezrat@copper.net>; Date: Mon, 07 Aug 2006 09:10:47 -0700; ORIGINAL MESSAGE: -- REPLY SEPARATOR -- Nope, it is still series resonant. Tap dance all you want, a series resonant circuit will not "dip" with a GDO unless you rewire it as a parallel circuit. Just; /archives//html/Amps/2006-08/msg00261.html (9,971 bytes)
70. Re: [Amps] grid resonance (score: 1): Author: Bill Turner <dezrat@copper.net>; Date: Mon, 07 Aug 2006 09:23:53 -0700; ORIGINAL MESSAGE: -- REPLY SEPARATOR -- A GDO "deceptive". I could not disagree more. Assuming the GDO is designed properly, what is says is happening really is. In all fairness, I have seen one GDO; /archives//html/Amps/2006-08/msg00262.html (8,980 bytes)
71. Re: [Amps] grid resonance (score: 1): Author: "Joe Subich, W4TV" <w4tv@subich.com>; Date: Mon, 7 Aug 2006 13:19:30 -0400; Since a GDO is a hardware device, it cannot be deceptive. However, the results obtained by using a dip meter can certainly be deceptive because what is displayed is not always what the user THINKS is; /archives//html/Amps/2006-08/msg00264.html (9,749 bytes)
72. Re: [Amps] grid resonance (score: 1): Author: Ian White GM3SEK <gm3sek@ifwtech.co.uk>; Date: Mon, 7 Aug 2006 18:27:07 +0100; In between - not long enough to be a significant fraction of a wavelength, but end-loaded by capacitance to other parts of the tube. As I said in the previous posting: "The grid in a "grounded grid"; /archives//html/Amps/2006-08/msg00265.html (11,168 bytes)
73. Re: [Amps] grid resonance (score: 1): Author: "Jim Brown" <jim@audiosystemsgroup.com>; Date: Mon, 07 Aug 2006 12:05:03 -0700; Right. But I think we can agree that a half wave dipole looks like a series resonant circuit ALL BY ITSELF -- that is, the exchange of energy accomplished by the antenna closes the loop. The same is; /archives//html/Amps/2006-08/msg00266.html (8,905 bytes)
74. Re: [Amps] grid resonance (score: 1): Author: "Tom W8JI" <w8ji@w8ji.com>; Date: Mon, 7 Aug 2006 16:42:49 -0400; Of course it is large enough to have resonances at frequencies we might be interested in. We not only have to contend with lead lengths there is also considerable capacitance, both distributed and l; /archives//html/Amps/2006-08/msg00267.html (9,401 bytes)
75. Re: [Amps] grid resonance (score: 1): Author: "Will Matney" <craxd1@verizon.net>; Date: Mon, 07 Aug 2006 11:41:46 -0400; A choke doesn't have to be large to have a self-resonant frequency. That is caused by the chokes inductance and distributed capacitance. However, the choke has to be shorted out to complete a circuit; /archives//html/Amps/2006-08/msg00271.html (11,195 bytes)
76. Re: [Amps] grid resonance (score: 1): Author: "Will Matney" <craxd1@verizon.net>; Date: Mon, 07 Aug 2006 11:47:56 -0400; Since there is interelectrode capacitance, stray capacitance, inductance, and stray inductance in the circuit, yes I'd say there would be a resonance somewhere. We all know, or I think we all know, t; /archives//html/Amps/2006-08/msg00272.html (11,277 bytes)
77. Re: [Amps] grid resonance (score: 1): Author: "Will Matney" <craxd1@verizon.net>; Date: Mon, 07 Aug 2006 15:35:34 -0400; I read the PDF about the HP 4191A from Coilcraft and didn't see anything out of the ordinary excapt some LCR meters bound to not to be calibrated. Either this or they were used to measure an inductor; /archives//html/Amps/2006-08/msg00273.html (13,445 bytes)
78. Re: [Amps] grid resonance (score: 1): Author: Steve Thompson <g8gsq@eltac.co.uk>; Date: Tue, 08 Aug 2006 08:29:16 +0100; Anything you like, as long as it meets the two crucial requirements of a religion. It must lend itself to obfuscation and it must be capable of interpretation in mutually exclusive, dogmatic, ways. A; /archives//html/Amps/2006-08/msg00278.html (9,615 bytes)
79. Re: [Amps] grid resonance (score: 1): Author: Steve Thompson <g8gsq@eltac.co.uk>; Date: Tue, 08 Aug 2006 09:22:01 +0100; Sorry, that's a typo - I meant super species. Come to think of it, maybe they're not mutant at all - after all, their body clocks are aligned to the One True Time. Steve ____________________________; /archives//html/Amps/2006-08/msg00279.html (9,059 bytes)
80. Re: [Amps] grid resonance (score: 1): Author: Peter Chadwick <g3rzp@g3rzp.wanadoo.co.uk>; Date: Tue, 8 Aug 2006 11:08:30 +0200 (CEST); Sorry, that's a typo - I meant super species. Come to think of it, maybe they're not mutant at all - after all, their body clocks are aligned to the One True Time.<< It's PDST at the moment, not PST!; /archives//html/Amps/2006-08/msg00280.html (8,581 bytes)

Current List: 61 - 80
Page: [1] [2] [3] [4] [5]