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161. [AMPS] parasitics (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Tue, 21 Apr 98 22:40:23 -0500; Quite the contrary, Carl. You, yourself have answered some questions of mine that begin to confirm some of Rich's theories. I will reply to those messages when I have some more time. I'll summarize; /archives//html/Amps/1998-04/msg00212.html (10,349 bytes)
162. [AMPS] parasitics (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Wed, 22 Apr 98 09:36:07 -0500; By nature a filter will look like a high or low impedance to any signal outside of its passband. That's how they work. Plot the return loss of a filter and you will see. The return loss will be 20 d; /archives//html/Amps/1998-04/msg00217.html (10,254 bytes)
163. [AMPS] parasitics (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Wed, 22 Apr 98 22:56:49 -0500; That's not a bad point. Now please, if the science is so junk, show me why. Don't just call it junk. Show me the technical flaws. Does EVERY amp need Rich's supressors..probably not. Do parasitics d; /archives//html/Amps/1998-04/msg00220.html (10,542 bytes)
164. [AMPS] parasitics (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Wed, 22 Apr 98 23:06:36 -0500; Oops. After re-reading this I don't think it's clear. Rich suggestes lowering the VHF-Q, not that lowering the VHF-Q is a bad thing. 73, Jon KE9NA -- Jon Ogden KE9NA http://www.qsl.net/ke9na "A life; /archives//html/Amps/1998-04/msg00221.html (8,958 bytes)
165. [AMPS] parasitics (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Thu, 23 Apr 98 14:40:09 -0500; Carl, I wondered about this as well. The first thought in my mind was: Just 16 Ga. wire...will that work? Then I realized the the coil in my original supressor was made with 20 Ga.wire! If 20 Ga wor; /archives//html/Amps/1998-04/msg00234.html (14,477 bytes)
166. [AMPS] parasitics (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Fri, 24 Apr 98 09:59:03 -0500; Well, my amp came with about #16 or #18 wire on the supressor and that's what I continued to use. Most of the anode circuitry was brass sheet stock. However, the magnet wire seemed to work fine as t; /archives//html/Amps/1998-04/msg00252.html (17,101 bytes)
167. [AMPS] QRO HF-2000 (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Fri, 24 Apr 98 10:19:28 -0500; Pardon my ignorance, but from my limited knowledge of thermodynamics, moving air provides cooling, static air does not. So just because there is pressure and "some" moving air, that doesn't seem to; /archives//html/Amps/1998-04/msg00254.html (7,610 bytes)
168. [AMPS] parasitics (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Fri, 24 Apr 98 10:23:44 -0500; It's an interesting suggestion. However, in all of the photographs of amps that I have seen with vacuum variables, they are all mounted horizontally. However, perhaps Rich has a good idea. 73, Jon K; /archives//html/Amps/1998-04/msg00255.html (9,140 bytes)
169. [AMPS] parasitics (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Fri, 24 Apr 98 10:25:26 -0500; Isn't 50 MHz VHF?? :-) 73, Jon KE9NA -- Jon Ogden jono@webspun.com www.qsl.net/ke9na "A life lived in fear is a life half lived." -- FAQ on WWW: http://www.contesting.com/ampfaq.html Submissions: am; /archives//html/Amps/1998-04/msg00256.html (8,724 bytes)
170. [AMPS] parasitics (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Fri, 24 Apr 98 15:57:07 -0500; You bring a good point here. However, in the case for my amp, I don' think the orginal supressor I made would work. It was down to ONE turn before it worked correctly. Well, I was only following wha; /archives//html/Amps/1998-04/msg00264.html (17,857 bytes)
171. [AMPS] parasitics (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Fri, 24 Apr 98 16:12:14 -0500; Oops...got my story wrong...He wasn't blowing up tubes. His bandswitch kept getting damaged due to arcing. The bottom line is that once he installed AG6K's supressors his problems went away. 73, Jon; /archives//html/Amps/1998-04/msg00266.html (9,307 bytes)
172. [AMPS] ALC -> Necessary??? (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Sat, 25 Apr 98 12:41:41 -0500; Hi all, I have a question for you folks out there (and gee, it isn't about parasitics! :-) ). Is having an ALC control necessary in my 4-1000A amplifier? I don't think it is necessary since the 4-100; /archives//html/Amps/1998-04/msg00277.html (7,402 bytes)
173. [AMPS] parasitics (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Sat, 25 Apr 98 14:30:21 -0500; I have no idea. All I know is the amp gave the guy lots of grief until he put in AG6K's supressors. 73, Jon KE9NA -- Jon Ogden KE9NA http://www.qsl.net/ke9na "A life lived in fear is a life half liv; /archives//html/Amps/1998-04/msg00284.html (8,819 bytes)
174. [AMPS] Odds (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Sat, 25 Apr 98 14:56:05 -0500; I agree. I am assuming this amp is a GG amp. ALL the literature I read says you should definitely use tuned inputs. 73, Jon KE9NA -- Jon Ogden KE9NA http://www.qsl.net/ke9na "A life lived in fear is; /archives//html/Amps/1998-04/msg00287.html (7,558 bytes)
175. [AMPS] parasitics (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Sat, 25 Apr 98 17:29:17 -0500; Perhaps some of the amplifier projects use the strap, however, the text talks about a wire coil. And I went out and bought the latest version just a couple months ago. Same stuff as the old one. Jus; /archives//html/Amps/1998-04/msg00291.html (15,895 bytes)
176. [AMPS] Reliability of Tube vs Solid State Amps (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Sun, 26 Apr 98 21:59:32 -0500; Having worked for a major communications company designing components to feed forward linear amplifiers, I must state, that even in the major commercial companies, poor amp designs exits. On one pro; /archives//html/Amps/1998-04/msg00299.html (10,487 bytes)
177. [AMPS] Supressors on my 4-1000A (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Sun, 26 Apr 98 22:21:52 -0500; Carl (and I am sending this to the reflector as well), In our discussions the past couple of days about the supressors that I have tried in my 4-1000A amplifier, you have pointed out that the reason; /archives//html/Amps/1998-04/msg00300.html (9,833 bytes)
178. [AMPS] Supressors on my 4-1000A (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Sun, 26 Apr 98 22:58:28 -0500; Ok, the experiment is done and my bet was wrong! The #18 ga wire has about 1.7 times the inductance of the strap. Here's the results of the experiment: Silver plated strap: Measured the resonance of; /archives//html/Amps/1998-04/msg00301.html (8,133 bytes)
179. [AMPS] Suppressor Measurements (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Mon, 27 Apr 98 21:29:35 -0500; Carl and everyone else, After fixing my GDO this evening (tube failure), I measured the resonance of my one-turn #18 magnet wire 4-1000A supressor coil. This is the coil that works in my amp. I reson; /archives//html/Amps/1998-04/msg00315.html (7,520 bytes)
180. [AMPS] parasitics (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Tue, 28 Apr 98 17:38:55 -0500; ARRRGH! How many times do I have to say it: I AM NOT ANY KIND OF AN EXPERT ON THE STRUCTURE AND MAKE-UP OF TUBES! I CANNOT SAY WHAT THE EXACT MECHANISM IS. IT WOULD BE IDIOTIC FOR ME TO TRY AND WRIT; /archives//html/Amps/1998-04/msg00323.html (10,263 bytes)

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