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21. [Amps] Rube Goldberg (score: 1): Author: k7fm@teleport.com (COLIN LAMB); Date: Thu, 18 Jul 2002 22:23:52 -0700; Hey, take it easy on Rube. He is getting a bad rap. Rube was really a Pulitzer Prize winning cartoonist who graduated in engineering from University of California at Berkeley and started work with t; /archives//html/Amps/2002-07/msg00308.html (7,965 bytes)
22. [Amps] 2.25 to 1 toroid winding information sources (score: 1): Author: k7fm@teleport.com (COLIN LAMB); Date: Tue, 23 Jul 2002 5:36:17 -0700; If drive power is in reserve, one could use a higher ratio toroid transformer (such as 3:1) and make up the difference with a resistance in parallel with the cathode. Colin K7FM; /archives//html/Amps/2002-07/msg00419.html (7,127 bytes)
23. [Amps] Muffin Fans (score: 1): Author: k7fm@teleport.com (COLIN LAMB); Date: Wed, 24 Jul 2002 7:23:6 -0700; I once built a pusher aircraft. Among the designers and builders, no one seemed to care whether the air was being pulled or pushed. The aircraft did not know the difference. About the only concern wa; /archives//html/Amps/2002-07/msg00454.html (8,511 bytes)
24. [Amps] Muffin Fans (score: 1): Author: k7fm@teleport.com (COLIN LAMB); Date: Wed, 24 Jul 2002 18:15:20 -0700; "The Consolidated B-36 was a pusher type aircraft. The sucky side of the 6-propellers passing by the wings' trailing edges created a beating noise that shook the earth below." Wasn't that beating noi; /archives//html/Amps/2002-07/msg00471.html (7,468 bytes)
25. [Amps] questions (score: 1): Author: k7fm@teleport.com (COLIN LAMB); Date: Sun, 28 Jul 2002 7:34:45 -0700; "How does heat affect the muffin fans ? It has gotten completely off..." The question cannot be simply answered, because it leaves out facts necessary. To answer the question, we need to know how muc; /archives//html/Amps/2002-07/msg00514.html (8,971 bytes)
26. [Amps] questions - update! (score: 1): Author: k7fm@teleport.com (COLIN LAMB); Date: Sun, 28 Jul 2002 7:53:17 -0700; "How does heat affect the muffin fans ?It has gotten completely off..." I neglected to note that the simplistic answer is - yes! Colin K7FM; /archives//html/Amps/2002-07/msg00516.html (6,133 bytes)
27. [Amps] Muffin Fans (score: 1): Author: k7fm@teleport.com (COLIN LAMB); Date: Wed, 24 Jul 2002 8:5:34 -0700; "We use computer modeling for airflow, with a package called Flowtherm, The modeling would have to take into account the external obstructions, too. If the amplifier is 1" away from a wall, airflow w; /archives//html/Amps/2002-07/msg00548.html (7,811 bytes)
28. [Amps] Magic Meter Shunts... (score: 1): Author: k7fm@teleport.com (COLIN LAMB); Date: Thu, 25 Jul 2002 17:1:57 -0700; Digital voltmeters have current limiting in the ohms setting and are excellent for determining the resistance of the unknown meters. Analog ohmmeters may have excessive current. Start out on the hig; /archives//html/Amps/2002-07/msg00549.html (7,670 bytes)
29. [Amps] Strange Problerm (score: 1): Author: k7fm@teleport.com (COLIN LAMB); Date: Wed, 5 Jun 2002 21:49:59 -0700; To: <amps@contesting.com> loss of all of the power supply filter capacitors in one "bank" of the supply. Both amplifiers (an Alpha 76 and a SB-220) were being run on 240 V AC. In both cases the filt; /archives//html/Amps/2002-06/msg00035.html (10,221 bytes)
30. [Amps] Driving Impedance (score: 1): Author: k7fm@teleport.com (COLIN LAMB); Date: Tue, 11 Jun 2002 21:41:5 -0700; Now, wait a minute. The answer that you cannot run the 4CX800A tube in grounded grid is a simplistic answer that is only partly true. You can cathode drive the tube, with normal grid and screen dc vo; /archives//html/Amps/2002-06/msg00076.html (9,157 bytes)
31. [Amps] CTI follow up - miscellaneous ramblings (score: 1): Author: k7fm@teleport.com (COLIN LAMB); Date: Tue, 25 Jun 2002 21:19:54 -0700; "* No tuned input with g-g is not hardly engineering practice". Well, perhaps. Let me throw some round numbers out - just for discussion. I do not claim they are researched numbers, nor that the conc; /archives//html/Amps/2002-06/msg00224.html (9,673 bytes)
32. [Amps] Pi tanks vs Pi L + LOW PASS (score: 1): Author: k7fm@teleport.com (COLIN LAMB); Date: Fri, 28 Jun 2002 18:35:47 -0700; I had phase jitter a number of years ago resulting in harmonics. Fortunately, one has moved out of the house now and I only have one left. I cannot explain how it happened here, since this is a fami; /archives//html/Amps/2002-06/msg00261.html (7,914 bytes)
33. [Amps] Muffin Fans (score: 1): Author: k7fm@teleport.com (COLIN LAMB); Date: Wed, 24 Jul 2002 8:5:34 -0700; "We use computer modeling for airflow, with a package called Flowtherm, The modeling would have to take into account the external obstructions, too. If the amplifier is 1" away from a wall, airflow w; /archives//html/Amps/2002-06/msg00287.html (6,567 bytes)
34. [Amps] CTI follow up - miscellaneous ramblings (score: 1): Author: k7fm@teleport.com (COLIN LAMB); Date: Tue, 25 Jun 2002 14:3:14 -0700; Gas tubes v. solid state regulators: I am always suspicious of an electronic device that hides the electron flow. When the VR tube glows, you know it is doing something. That is not the case with sol; /archives//html/Amps/2002-06/msg00288.html (10,333 bytes)
35. [Amps] CTI follow up - miscellaneous ramblings (score: 1): Author: k7fm@teleport.com (COLIN LAMB); Date: Wed, 26 Jun 2002 6:5:10 -0700; "it should be possible to make a 800-LED array screen-shunt regulator for an 8170 that could probably be seen from 2-miles away. Would this be impressive or what?" And, the neighbors would know that; /archives//html/Amps/2002-06/msg00289.html (8,436 bytes)
36. [Amps] DAYTON (score: 1): Author: k7fm@teleport.com (COLIN LAMB); Date: Mon, 6 May 2002 22:12:59 -0700; Hello: Leaving on Sunday for a leisurely trip through various junk and surplus stores from Oregon to Dayton. Is there any special tavern that the AMPS group frequents at Dayton, or do they all hover; /archives//html/Amps/2002-05/msg00058.html (6,587 bytes)
37. [Amps] PUT your price on your forsale WAS FS:cheap tubes GU74B,GI7B,GS9B,GS23B (score: 1): Author: k7fm@teleport.com (COLIN LAMB); Date: Fri, 10 May 2002 21:44:40 -0700; Art requested that prices be put on items: is no price on it, the seller does not want to sell it. So, I walk by. If it is advertised on the Internet, I ignore. 73, Colin K7FM; /archives//html/Amps/2002-05/msg00123.html (6,693 bytes)
38. [Amps] Re: [Amps} Transformer oil? (score: 1): Author: k7fm@teleport.com (COLIN LAMB); Date: Thu, 30 May 2002 12:1:59 -0700; Oregon has such a disposal site. But, there is a catch. It must be for household use. A few years ago I retired my 2,000 amp lead acid batteries from my wind generator. I had 6 cells that weighed abo; /archives//html/Amps/2002-05/msg00482.html (8,756 bytes)
39. [Amps] Part 97 (score: 1): Author: k7fm@teleport.com (COLIN LAMB); Date: Mon, 1 Apr 2002 17:15:1 -0800; Richard said: "97.307 would not hold water in Fed. court." Rich, I would not bet my license on it if I were you. It is the law. The FCC is authorized by Congress to make rules and regulations. As ama; /archives//html/Amps/2002-04/msg00039.html (6,946 bytes)
40. [Amps] rotten splatter/ IMD vs. Vcc (score: 1): Author: k7fm@teleport.com (COLIN LAMB); Date: Tue, 2 Apr 2002 5:47:42 -0800; The FT-102 was reviewed in QST - October of 1983. John has a pretty good memory. 3rd and 5th order imd was down 40 db. A real sleeper with regard to distortion in rigs with 12 volt finals is the Heat; /archives//html/Amps/2002-04/msg00065.html (9,081 bytes)

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