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41. [AMPS] Re: Power Handling of Resistors (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Thu, 09 Mar 2000 22:44:49 -0600; Let's do the math: A Joule is 1 Watt-second. Multiply watts times seconds. If I am transmitting at 1500 Watts for 10 seconds, the total energy passing through the switch is 15,000 joules. So if I can; /archives//html/Amps/2000-03/msg00517.html (8,946 bytes)
42. [AMPS] Unconditional stability (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Thu, 09 Mar 2000 22:46:11 -0600; Carl, The amps we are dealing with here are Class AB devices and as such are "pseudo-linear." S-Parameters are not valid for anything other than Class A. Just using your own words. 73, Jon KE9NA -- J; /archives//html/Amps/2000-03/msg00518.html (7,818 bytes)
43. [AMPS] Power Handling of Resistors (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Thu, 09 Mar 2000 22:59:48 -0600; I got a blessing from the e-mails gods! My message to the reflector bounced for some reason so I get to edit it and re-send it again! COOL! OK: Wait a minute. Dave, you say not to use bait and switch; /archives//html/Amps/2000-03/msg00519.html (13,719 bytes)
44. [AMPS] Unconditional stability (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Thu, 09 Mar 2000 23:55:12 -0600; back! :-) True. But how would go about measuring S-parameters on a large signal device? I suppose you could use a large signal Z-analyzer and then do a transformation to S-parameters........ Back in; /archives//html/Amps/2000-03/msg00522.html (8,435 bytes)
45. [AMPS] Re: Power Handling of Resistors (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Fri, 10 Mar 2000 00:15:35 -0600; OK. You're correct. Understand now what you are saying. Certainly you are correct when it comes to how much power one could actually dissipate in the switch. No doubt about that! Thanks for clearing; /archives//html/Amps/2000-03/msg00524.html (9,055 bytes)
46. [AMPS] Re: Power Handling of Resistors (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Fri, 10 Mar 2000 00:22:06 -0600; You are correct. Carl straightened me out. The words "to" and "through" mean very different things even though the power has to go "to" the bandswitch before it goes "to" the load. Agreed. And switch; /archives//html/Amps/2000-03/msg00525.html (11,035 bytes)
47. [AMPS] Stainless Steel Chassis Effects???? (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Fri, 10 Mar 2000 06:51:56 -0600; I've heard of people using stainless steel before. When I had a resonance problem due to cavity effects in my amp, several people suggested using a stainless steel lid (the problem came into play whe; /archives//html/Amps/2000-03/msg00534.html (7,886 bytes)
48. [AMPS] Power Handling of Resistors (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Fri, 10 Mar 2000 07:26:49 -0600; It's still not an INSTANTENOUS function. A cap doesn't discharge all of it's energy at once. And 20 amps from 1 uF sounds like an awful lot. Let's see.... Let's say we have 32 uF at 4000 volts as in; /archives//html/Amps/2000-03/msg00536.html (10,622 bytes)
49. [AMPS] Rocky Point effects (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Fri, 10 Mar 2000 19:07:48 -0600; Why is "actually" the key word, Rich? And please show us some SCIENTIFIC proof that this "codswallop" as you call it really is "codswallop." Unless you can back up your claim scientifically, don't ma; /archives//html/Amps/2000-03/msg00557.html (10,135 bytes)
50. [AMPS] Rocky Point effects (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Fri, 10 Mar 2000 20:46:08 -0600; Why not. If the gases are trapped in the surface of the metal why would some not escape? Also, since it is IMPOSSIBLE to create a perfect vacuum there is certainly some gas still left inside the tube; /archives//html/Amps/2000-03/msg00559.html (11,057 bytes)
51. [AMPS] Rocky Point effects (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Fri, 10 Mar 2000 22:02:21 -0600; You know the answer. Tell us. ??????? I'm a person of faith. But my faith and ham radio amplifiers have nothing to do with each other. So why would I bring it into this thread? What's ur point? Why n; /archives//html/Amps/2000-03/msg00561.html (11,177 bytes)
52. SV: SV: [AMPS]Plate choke at the antenna end instead? (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Mon, 13 Mar 2000 06:54:13 -0600; Then you have other problems. Your tank circuit then has DC on it. This means that the voltage ratings on your caps needs to be very high. That's the first that I can think of. 73, Jon KE9NA -- Jon O; /archives//html/Amps/2000-03/msg00619.html (8,565 bytes)
53. [AMPS] Receiver performance (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Mon, 13 Mar 2000 07:03:02 -0600; Someone mentioned these tests on another reflector I am on. I don't think they are at all accurate. They show an FT-1000D with about the same performance as an FT-847. Trust me, I have both and the F; /archives//html/Amps/2000-03/msg00620.html (8,721 bytes)
54. [AMPS] Receiver performance (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Mon, 13 Mar 2000 23:24:07 -0600; Agreed. The FT-847 is a nice rig for what you pay for. However, its DSP certainly introduces digital noise that you don't get with real filters. And seeing as how those numbers that were posted show; /archives//html/Amps/2000-03/msg00648.html (9,543 bytes)
55. [AMPS] Filter cap mounting (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Tue, 14 Mar 2000 19:48:02 -0600; The cap bank in my HV power supply has an interesting way of doing this. I can't claim credit since the guy who originally built the amp (I REBUILT the RF deck) did the HV stuff and I did very little; /archives//html/Amps/2000-03/msg00684.html (7,957 bytes)
56. [AMPS] G2DAF - Hearing is Believing (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Sun, 26 Mar 2000 21:54:44 -0600; OK, To those of you who's blinders and paradigms of the way you think things should be keep you from seeing objective reality outside the box, listen up. I don't care how much theory one says about a; /archives//html/Amps/2000-03/msg00971.html (7,862 bytes)
57. [AMPS] Re: New G2DAF amplifier information (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Sun, 26 Mar 2000 22:14:30 -0600; Yeah, really. MOST of the clowns that hang out on 80 meters all splatter. Rich's friend probably had his compressor cranked all the way up to the max. All Rich says is he heard splatter. Well if spla; /archives//html/Amps/2000-03/msg00972.html (10,567 bytes)
58. [AMPS] Re: G2DAF - Hearing is Believing (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Mon, 27 Mar 2000 06:32:41 -0600; It's probably that they were running at max processor! I had one guy come to me on 15 and tell me I was really wide (like 10 Kcs down). I back off my processor and mike gain and he said my signal imp; /archives//html/Amps/2000-03/msg00985.html (7,832 bytes)
59. SV: [AMPS] Nichrome/Parasitics/ARRL Handbook 2000 (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Tue, 08 Feb 2000 10:34:38 -0600; Ian, I don't disagree with you, but an inductor of significant size can affect the resonance enough to move it out of an area where the tube will not want to parasitically oscillate. I know this for; /archives//html/Amps/2000-02/msg00124.html (11,168 bytes)
60. [AMPS] Rich is back, now how about KM1H ??? (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Mon, 21 Feb 2000 18:10:51 -0600; While, it would be great to have these guys back it won't work for long. Mr. Measures cannot stand anyone who disagrees with him and all points of view that contradict his are wrong. And he will need; /archives//html/Amps/2000-02/msg00454.html (10,330 bytes)

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