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161. [AMPS] Blown TL922A... What to do? (score: 1): Author: Ian White, G3SEK" <g3sek@ifwtech.com (Ian White, G3SEK); Date: Mon, 11 Sep 2000 17:25:33 +0100; We may be talking about different transistors. Let's start again. Where in the circuit is the transistor that you say burns out in a glitch? Why do you believe that it should be removed, if that also; /archives//html/Amps/2000-09/msg00475.html (10,518 bytes)
162. [AMPS] Blown TL922A... What to do? (score: 1): Author: 2@vc.net (measures); Date: Mon, 11 Sep 2000 10:58:26 -0700; Rich does not sell parasitic suppressors. He sells parts to construct them and information. Customers build the suppressors. The resistance-wire suppressor that was tested by Wes was built by Wes. s; /archives//html/Amps/2000-09/msg00478.html (14,351 bytes)
163. [AMPS] Blown TL922A... What to do? (score: 1): Author: 2@vc.net (measures); Date: Mon, 11 Sep 2000 10:58:28 -0700; A frangible resistor seems to protect 3-500Zs from shorting during big-bangs. A shorted transistor affords zero protection. A C/E shorted transistor provides better protection.? end - Rich..., 805.3; /archives//html/Amps/2000-09/msg00479.html (10,061 bytes)
164. [AMPS] Blown TL922A... What to do? (score: 1): Author: NICK.WALLACE@xtra.co.nz (NICK WALLACE); Date: Tue, 12 Sep 2000 06:30:07 +1200; Nice One Jim, "Hats off to General Reinwald" Nick..ZL1IU -- Original Message -- From: Jim Reid <kh7m@hsa-kauai.net> To: <RMcGraw@InfoAve.Net>; Peter Chadwick <Peter_Chadwick@mitel.com> Cc: amps <amps; /archives//html/Amps/2000-09/msg00482.html (11,759 bytes)
165. [AMPS] Blown TL922A... What to do? (score: 1): Author: 2@vc.net (measures); Date: Mon, 11 Sep 2000 11:37:07 -0700; In series with the grid current meter shunt. This transistor must open to stop the flow of excessive grid current. If the transistor has too much current, it C-E shorts. Grid current protection is d; /archives//html/Amps/2000-09/msg00483.html (10,737 bytes)
166. [AMPS] Blown TL922A... What to do? (score: 1): Author: 2@vc.net (measures); Date: Mon, 11 Sep 2000 11:37:05 -0700; you are welcome, Ian. ? (Wes uses "Rp"). The suppressor resistor was 100-ohms. I supplied it. I did not confuse R-supp with Wes' parallel equivalent resistance measurements. [chortle] The copper-wir; /archives//html/Amps/2000-09/msg00484.html (12,559 bytes)
167. [AMPS] Blown TL922A... What to do? (score: 1): Author: baycock@HIWAAY.NET (Bill Aycock); Date: Mon, 11 Sep 2000 13:43:02 -0500; This is typical of the BS originating with Measures- He KNOWS that the relevant point is that 2 is a small number, and the 45& has no significance at that level. HIs constant taking stuff out of cont; /archives//html/Amps/2000-09/msg00485.html (10,584 bytes)
168. [AMPS] Blown TL922A... What to do? (score: 1): Author: 2@vc.net (measures); Date: Mon, 11 Sep 2000 13:19:31 -0700; indeterminant sentence Rich does not repeat interpretations. He repeats published measurements. Is "juvenal" a sleep disorder? cheers, Bill. - Rich..., 805.386.3734, www.vcnet.com/measures. end -- F; /archives//html/Amps/2000-09/msg00488.html (9,608 bytes)
169. [AMPS] Blown TL922A... What to do? (score: 1): Author: Ian White, G3SEK" <g3sek@ifwtech.com (Ian White, G3SEK); Date: Mon, 11 Sep 2000 21:49:00 +0100; I don't understand that circuit idea - who uses it? It does seem a strange way of protecting against excessive grid current, under "normal" conditions of excessive RF drive, incorrect loading or low; /archives//html/Amps/2000-09/msg00491.html (11,117 bytes)
170. [AMPS] Blown TL922A... What to do? (score: 1): Author: 2@vc.net (measures); Date: Mon, 11 Sep 2000 16:40:37 -0700; I do not know. One of my customers told me that a transistor shorted in the grid protect circuit during a glitch. There is obviously a better way. the better way OK My guess is that gold-sputtering; /archives//html/Amps/2000-09/msg00498.html (11,401 bytes)
171. [AMPS] Blown TL922A... What to do? (score: 1): Author: baycock@HIWAAY.NET (Bill Aycock); Date: Mon, 11 Sep 2000 19:12:26 -0500; No- my mistake- I misspelled "juvenile"- I could have used "immature", or "'puerile", or "childish". If you think you dont repeat misinterpretations- you have a short memory. Bill - Bill Aycock -- Pe; /archives//html/Amps/2000-09/msg00501.html (10,299 bytes)
172. [AMPS] Blown TL922A... What to do? (score: 1): Author: dhb@mediaone.net (Dave, AA6YQ); Date: Mon, 11 Sep 2000 20:59:54 -0400; But Agreed - measurement is necessary to validate a model. This does not diminish the value of modeling. parameters. Given a significant number of parameters and the need to assess circuit performan; /archives//html/Amps/2000-09/msg00504.html (11,737 bytes)
173. [AMPS] Blown TL922A... What to do? (score: 1): Author: 2@vc.net (measures); Date: Mon, 11 Sep 2000 18:31:32 -0700; An example is needed to go with your assertion. I will be surprised if you find an example. I avoid interpretations. I try to get the reader to decide what makes sense. later, Bill - Rich..., 805.38; /archives//html/Amps/2000-09/msg00506.html (11,070 bytes)
174. [AMPS] Blown TL922A... What to do? (score: 1): Author: baycock@HIWAAY.NET (Bill Aycock); Date: Mon, 11 Sep 2000 23:51:50 -0500; here are two: 1. you have stated several times that Rauch does not understand scientific notation. this is either a misinterpretation or a lie. Your call 2. you have stated on several occasions that; /archives//html/Amps/2000-09/msg00511.html (10,026 bytes)
175. [AMPS] Blown TL922A... What to do? (score: 1): Author: 2@vc.net (measures); Date: Mon, 11 Sep 2000 22:34:44 -0700; I used scientific notation is a reply. He said he was not familiar with it. I stopped using it. History. It happened during the Grate Debate. Mr. Rauch has always maintained that virtually no curren; /archives//html/Amps/2000-09/msg00512.html (10,417 bytes)
176. [AMPS] Blown TL922A... What to do? (score: 1): Author: Peter_Chadwick@mitel.com (Peter Chadwick); Date: Tue, 12 Sep 2000 07:00:48 +0100; Then it doesn't meet the criteria for stability - viz, anode parasitic resonance lower than grid parasitic resonance. 73 Peter G3RZP -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amp; /archives//html/Amps/2000-09/msg00513.html (9,243 bytes)
177. [AMPS] Blown TL922A... What to do? (score: 1): Author: philk5pc@tyler.net (Phil Clements); Date: Tue, 12 Sep 2000 01:40:56 -0500; Are you saying that during the sputtering no grid current flows? (((73))) Phil, K5PC -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Administrative requests: amps-; /archives//html/Amps/2000-09/msg00517.html (9,029 bytes)
178. [AMPS] Blown TL922A... What to do? (score: 1): Author: Peter_Chadwick@mitel.com (Peter Chadwick); Date: Tue, 12 Sep 2000 08:49:17 +0100; . The question is how long this will take - especially 1. Modelling is a very good tool - if the model is right. 'Ay, there's the rub'. At an international standards meeting, one American guy made a; /archives//html/Amps/2000-09/msg00519.html (9,912 bytes)
179. [AMPS] Blown TL922A... What to do? (score: 1): Author: i4jmy@iol.it (i4jmy@iol.it); Date: Tue, 12 Sep 2000 10:50:54 +0200; Avoid/prevent doubts with a small ferrite bead. 73, Mauri I4JMY -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contesting.com; /archives//html/Amps/2000-09/msg00520.html (9,164 bytes)
180. [AMPS] Blown TL922A... What to do? (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Tue, 12 Sep 2000 10:52:26 -0400; You are making mountains out of what turn out to be mole-hills. It's pretty easy to find the extremes in phase shift and loss at several points, and determine if oscillation is possible. I think may; /archives//html/Amps/2000-09/msg00535.html (11,226 bytes)

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