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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[AMPS\]\s+Blown\s+TL922A\.\.\.\s+What\s+to\s+do\?\s*$/: 246 ]

Total 246 documents matching your query.

141. [AMPS] Blown TL922A... What to do? (score: 1): Author: RMcGraw@InfoAve.Net (Bob & Linda McGraw K4TAX); Date: Sun, 10 Sep 2000 20:33:16 -0700; Peter: Darn good technical answer. 73 Bob K4TAX -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contesting.com Problems: owner; /archives//html/Amps/2000-09/msg00427.html (11,983 bytes)
142. [AMPS] Blown TL922A... What to do? (score: 1): Author: 2@vc.net (measures); Date: Sun, 10 Sep 2000 20:32:09 -0700; The 8877 does not have a filament. It has a heater. cheers, Steve - Rich..., 805.386.3734, www.vcnet.com/measures. end -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.; /archives//html/Amps/2000-09/msg00432.html (9,196 bytes)
143. [AMPS] Blown TL922A... What to do? (score: 1): Author: 2@vc.net (measures); Date: Sun, 10 Sep 2000 20:32:12 -0700; [chortle] enough - Rich..., 805.386.3734, www.vcnet.com/measures. end -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contest; /archives//html/Amps/2000-09/msg00433.html (9,563 bytes)
144. [AMPS] Blown TL922A... What to do? (score: 1): Author: 2@vc.net (measures); Date: Sun, 10 Sep 2000 20:32:10 -0700; The grid protection circuits I am talking about are those that provide no protection because the transistor that interrupts has too low a current rating and it shorts during a glitch -- thereby affo; /archives//html/Amps/2000-09/msg00434.html (14,376 bytes)
145. [AMPS] Blown TL922A... What to do? (score: 1): Author: dhb@mediaone.net (Dave, AA6YQ); Date: Mon, 11 Sep 2000 00:21:29 -0400; Determining by measurement that one instance of a circuit fails to oscillate does prove false the assertion "every instance oscillates". But the domain here is production, where there are hundreds o; /archives//html/Amps/2000-09/msg00440.html (10,147 bytes)
146. [AMPS] Blown TL922A... What to do? (score: 1): Author: kh7m@hsa-kauai.net (Jim Reid); Date: Sun, 10 Sep 2000 18:48:27 -1000; Does this fit into the great "debate" with the many "come back" lines? On the radio the other day, was heard one of the all-time best comeback lines ever. Note: This is an exact replication of Nation; /archives//html/Amps/2000-09/msg00442.html (10,395 bytes)
147. [AMPS] Blown TL922A... What to do? (score: 1): Author: w7ry@netzero.net (w7ry); Date: Sun, 10 Sep 2000 21:53:09 -0700; WOW! What a great way to break up the WORN OUT SUBJECT OF : RE: [AMPS] Blown TL922A... What to do? Thanks Jim! 73 to all! Jim W7RY --Original Message-- From: Jim Reid <kh7m@hsa-kauai.net> To: RMcGraw; /archives//html/Amps/2000-09/msg00443.html (11,759 bytes)
148. [AMPS] Blown TL922A... What to do? (score: 1): Author: RMcGraw@InfoAve.Net (Bob & Linda McGraw K4TAX); Date: Mon, 11 Sep 2000 07:06:00 -0700; Jim; Good come back line. As I see things, with all the discussion (Blown TL922A - What to do) here about suppressors, failure mode of 8877's, flash, bang and smoke instances does not equip one to be; /archives//html/Amps/2000-09/msg00446.html (11,397 bytes)
149. [AMPS] Blown TL922A... What to do? (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Mon, 11 Sep 2000 08:58:24 -0400; The filament supply (sorry Rich for violating your important correction, but it is a filament as well as a heater) was current limited to two times the operating current. It would not be a valid tes; /archives//html/Amps/2000-09/msg00450.html (9,411 bytes)
150. [AMPS] Blown TL922A... What to do? (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Mon, 11 Sep 2000 08:58:25 -0400; Hi Dave, One can not model an RF system without measurements. You don't know those parameters without measurements. You won't know the models are valid unless you make measurements, and analyze the m; /archives//html/Amps/2000-09/msg00451.html (11,635 bytes)
151. [AMPS] Blown TL922A... What to do? (score: 1): Author: Ian White, G3SEK" <g3sek@ifwtech.com (Ian White, G3SEK); Date: Mon, 11 Sep 2000 12:57:46 +0100; Failure of that transistor to survive a glitch/arc/parastic/flashover/whatever is a simple DC design fault that can be cured by a 10K resistor. I don't think that's a good reason to remove grid curre; /archives//html/Amps/2000-09/msg00454.html (9,668 bytes)
152. [AMPS] Blown TL922A... What to do? (score: 1): Author: Ian White, G3SEK" <g3sek@ifwtech.com (Ian White, G3SEK); Date: Mon, 11 Sep 2000 14:01:04 +0100; For the benefit of anyone who joined AMPS since the N7WS Incident, here's a short run-down. Wes Stewart, N7WS, tried to help resolve the disagreements about the relative virtues of conventional R-L p; /archives//html/Amps/2000-09/msg00455.html (10,393 bytes)
153. [AMPS] Blown TL922A... What to do? (score: 1): Author: 2@vc.net (measures); Date: Mon, 11 Sep 2000 07:49:06 -0700; ? Not quite. I supplied Wes with the materials and he constructed a suppressor that was similiar to the W8JI suppressor. Both had c. 100nH and 100-ohms. ? (key word) ? I originally designated the su; /archives//html/Amps/2000-09/msg00459.html (10,962 bytes)
154. [AMPS] Blown TL922A... What to do? (score: 1): Author: 2@vc.net (measures); Date: Mon, 11 Sep 2000 07:49:08 -0700; A 10k-ohm resistor can prevent C-E shorts due to excessive collector current? Replacing a shorted transistor with a fuse-R is hardly removing protection. Shorted transistors afford no protection bec; /archives//html/Amps/2000-09/msg00460.html (9,821 bytes)
155. [AMPS] Blown TL922A... What to do? (score: 1): Author: paulc@mediaone.net (Paul Christensen); Date: Mon, 11 Sep 2000 10:59:42 -0400; Question: How relevant is the percentage delta when the Q is ~ 2.0? In other words, is this percentage change at ~ 2.0 as important as a say a 46% change in Q from 50 to 73? -Paul, W9AC -- FAQ on WW; /archives//html/Amps/2000-09/msg00461.html (9,381 bytes)
156. [AMPS] Blown TL922A... What to do? (score: 1): Author: paulc@mediaone.net (Paul Christensen); Date: Mon, 11 Sep 2000 11:03:08 -0400; 10K placed exactly where in the circuit? -Paul, W9AC -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contesting.com Problems:; /archives//html/Amps/2000-09/msg00462.html (9,251 bytes)
157. [AMPS] Blown TL922A... What to do? (score: 1): Author: 2@vc.net (measures); Date: Mon, 11 Sep 2000 08:26:42 -0700; 2 has no unique property that I am aware of. cheers, Paul - Rich..., 805.386.3734, www.vcnet.com/measures. end -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Admi; /archives//html/Amps/2000-09/msg00465.html (9,285 bytes)
158. [AMPS] Blown TL922A... What to do? (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Mon, 11 Sep 2000 13:11:08 -0400; That isn't true Rich. Removing the current limiting allows the operator to overdissipate the grid, and that is the single most common cause of failure in MOX cathode amplifiers. A resistor is not ev; /archives//html/Amps/2000-09/msg00471.html (9,824 bytes)
159. [AMPS] Blown TL922A... What to do? (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Mon, 11 Sep 2000 13:11:08 -0400; If we can maintain a "low-noise" conversation, you can decide for yourself. First, we should understand this. The suppressor Wes measured was NOT the suppressor Rich sells. The suppressor Wes measur; /archives//html/Amps/2000-09/msg00473.html (12,950 bytes)
160. [AMPS] Blown TL922A... What to do? (score: 1): Author: Ian White, G3SEK" <g3sek@ifwtech.com (Ian White, G3SEK); Date: Mon, 11 Sep 2000 17:19:56 +0100; Thanks for the correction. People were confused because you were unaware that "Rs" always means "series equivalent resistance". You actually believed that the Rs values quoted by Wes *were* what you; /archives//html/Amps/2000-09/msg00474.html (12,180 bytes)

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