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61. [Amps] Alpha 374 (score: 1): Author: ko4nrbs@yahoo.com (Bill Smith); Date: Wed, 27 Mar 2002 06:11:15 -0800 (PST); Has the Alpha 374 amplifier ever been converted to different tubes? I found one that I can get for a song but has no tubes and they are expensive!! 73, Bill Smith KO4NR == Bill Smith KO4NR __________; /archives//html/Amps/2002-03/msg00625.html (6,490 bytes)
62. [Amps] ARRL MLA-2500 4CX800A Tube Conversion (score: 1): Author: ko4nrbs@yahoo.com (Bill Smith); Date: Sat, 30 Mar 2002 05:46:46 -0800 (PST); I can't get the article on this at the Svetlana web site to open up. Anyone know where I can get it? 73, Bill Smith KO4NR == Bill Smith KO4NR __________________________________________________ Do You; /archives//html/Amps/2002-03/msg00692.html (7,001 bytes)
63. [Amps] 4CX800A Tube Conversion of Dentron MLA-2500 (score: 1): Author: ko4nrbs@yahoo.com (Bill Smith); Date: Sat, 30 Mar 2002 07:49:14 -0800 (PST); If you have done this conversion or know of someone that has please let me know. I am very interested in how much more difficult or involved it would be to use the 4CX800A vs. a 3CX800A7 or the 4CX40; /archives//html/Amps/2002-03/msg00695.html (7,100 bytes)
64. [Amps] Swan Mark 1 (score: 1): Author: ko4nrbs@yahoo.com (Bill Smith); Date: Sun, 31 Mar 2002 04:35:59 -0800 (PST); What is involved in replacing the 3-400 tubes in the Swan Mark 1 with 3-500ZG? Anyone had experience with this amp? 73, Bill Smith KO4NR == Bill Smith KO4NR __________________________________________; /archives//html/Amps/2002-03/msg00699.html (6,668 bytes)
65. [AMPS] 1000H and 2500H Bird Slugs (score: 1): Author: ko4nrbs@yahoo.com (Bill Smith); Date: Sun, 10 Feb 2002 07:12:34 -0800 (PST); What is the average price for Bird 1000H and 2500H slugs in the US? PA0FRI(Frits) in the Netherlands is looking for some. His email is pa0fri@amsat.org 73, Bill == Bill Smith KO4NR __________________; /archives//html/Amps/2002-02/msg00080.html (6,959 bytes)
66. [AMPS] High Voltage Toroidal Power Transformers (score: 1): Author: ko4nrbs@yahoo.com (Bill Smith); Date: Fri, 15 Feb 2002 06:49:39 -0800 (PST); What are the pros and cons of using High Voltage Toroidal Power Transformers in HF Linear Amplifiers? 73, Bill Smith KO4NR == Bill Smith KO4NR __________________________________________________ Do Yo; /archives//html/Amps/2002-02/msg00151.html (7,093 bytes)
67. [AMPS] HA-10 Conversion to 572B Tubes (score: 1): Author: ko4nrbs@yahoo.com (Bill Smith); Date: Thu, 21 Feb 2002 10:52:28 -0800 (PST); Just acquired (real cheap) a Heathkit HA-10 with a blown Plate transformer and no tubes. Everything else is in like new condition. Since the amp looks like new I'm thinking I should install a new Pla; /archives//html/Amps/2002-02/msg00217.html (7,706 bytes)
68. [AMPS] Thermador Model CS-5665A Transformer (score: 1): Author: ko4nrbs@yahoo.com (Bill Smith); Date: Thu, 21 Feb 2002 15:08:53 -0800 (PST); I have one at 1175 volts at 600ma. Is the 600 ma rating in CCS? 73, Bill == Bill Smith KO4NR __________________________________________________ Do You Yahoo!? Yahoo! Sports - Coverage of the 2002 Oly; /archives//html/Amps/2002-02/msg00220.html (6,755 bytes)
69. [AMPS] Heathkit HA-10 Warrior Parts (score: 1): Author: ko4nrbs@yahoo.com (Bill Smith); Date: Sat, 23 Feb 2002 15:01:36 -0800 (PST); After getting so many good ideas on how to update the Warrior to a capacitor input power supply I have decided to convert my other Warrior as well. It is in like new condition and has seen very littl; /archives//html/Amps/2002-02/msg00251.html (7,153 bytes)
70. [AMPS] SB-220 Junker Value?? (score: 1): Author: ko4nrbs@yahoo.com (Bill Smith); Date: Mon, 25 Feb 2002 08:33:36 -0800 (PST); Found in an old building that is for rent an SB-220 complete with two tubes (condition??)but in a pile of parts. Looks ok, no physical damage, stupid mods or burned up components. Someone just tore i; /archives//html/Amps/2002-02/msg00267.html (7,129 bytes)
71. [AMPS] Copper Finger Stock Supplier (score: 1): Author: ko4nrbs@yahoo.com (Bill Smith); Date: Mon, 25 Feb 2002 09:46:30 -0800 (PST); I'm builidng up some sockets for the Russian GI7B Tubes and need a few pieces of finger stok. Is there a supplier out there that does not require you to buy a truck load to get a few pieces? 73, Bill; /archives//html/Amps/2002-02/msg00268.html (7,079 bytes)
72. [Amps] Adequate Cooling Air for Four 811A's (score: 1): Author: ko4nrbs@yahoo.com (Bill Smith); Date: Mon, 25 Feb 2002 12:47:23 -0800 (PST); How much air should I provide to keep four 811A's cool? Thought I would buy a new Dayton Squirrel cage Fan. 73, Bill == Bill Smith KO4NR __________________________________________________ Do You Yaho; /archives//html/Amps/2002-02/msg00272.html (6,951 bytes)
73. [Amps] Which is it 220, 230, or 240 volts, etc.?? (score: 1): Author: ko4nrbs@yahoo.com (Bill Smith); Date: Tue, 26 Feb 2002 12:16:05 -0800 (PST); I want to have a transformer rewound for me and am puzzled by the differnet Primary Voltage options I have available. The power at my house reads 120 volts +/- a few volts depending on the time of da; /archives//html/Amps/2002-02/msg00290.html (7,550 bytes)
74. [AMPS] HV Transformer (score: 1): Author: ko4nrbs@yahoo.com (Bill Smith); Date: Wed, 2 Jan 2002 13:06:21 -0800 (PST); Looking for a HV transformer with 240 volt primary and 1740 volt secondary with at least 1.5 amps CCS capabilities in the secondary. 73, Bill == Bill Smith KO4NR _____________________________________; /archives//html/Amps/2002-01/msg00023.html (6,948 bytes)
75. [AMPS] 813 Tubes vs. Russian GU-13 (score: 1): Author: ko4nrbs@yahoo.com (Bill Smith); Date: Mon, 14 Jan 2002 12:09:21 -0800 (PST); Are the 813 tubes the same as the Russian GU-13 tubes? 73, Bill == Bill Smith KO4NR __________________________________________________ Do You Yahoo!? Send FREE video emails in Yahoo! Mail! http://pro; /archives//html/Amps/2002-01/msg00100.html (6,679 bytes)
76. [AMPS] 12.6 volt CT 10 amp Filament Transformer (score: 1): Author: ko4nrbs@yahoo.com (Bill Smith); Date: Thu, 31 Jan 2002 08:49:11 -0800 (PST); Anyone got a 12.6 volt CT 10 amp Filament Transformer they would part with for a good price? Bill == Bill Smith KO4NR __________________________________________________ Do You Yahoo!? Great stuff see; /archives//html/Amps/2002-01/msg00374.html (6,804 bytes)
77. [AMPS] Rotary Inductors in Amps (score: 1): Author: ko4nrbs@yahoo.com (Bill Smith); Date: Wed, 12 Dec 2001 07:48:55 -0800 (PST); What qualities should someone look for in a Rotary Inductor intended to be used in an amplifier Tank Circuit? 73, Bill == Bill Smith KO4NR __________________________________________________ Do You Ya; /archives//html/Amps/2001-12/msg00209.html (7,139 bytes)
78. [AMPS] Transformer Current ratings (score: 1): Author: ko4nrbs@yahoo.com (Bill Smith); Date: Fri, 14 Dec 2001 10:31:29 -0800 (PST); I have been given a large number of used transformers. Haven't checked the secondary voltages yet but some of them are know to be 2kv or more. I want to build a stable 2 amp power supply at 2 to 2.5; /archives//html/Amps/2001-12/msg00225.html (8,335 bytes)
79. [AMPS] HV Transformers Available (score: 1): Author: ko4nrbs@yahoo.com (Bill Smith); Date: Mon, 17 Dec 2001 07:14:20 -0800 (PST); Marc, KC5VMX, has several HV transformers available that were built for customers that did not pick them up. I tripped over this information while looking for a transformer for a new project of mine.; /archives//html/Amps/2001-12/msg00289.html (7,177 bytes)
80. [AMPS] HV Pole Pig Transformers (score: 1): Author: ko4nrbs@yahoo.com (Bill Smith); Date: Wed, 19 Dec 2001 10:00:46 -0800 (PST); I've been offered one of these at a very low cost. I'd like to hear from guys that have used these type of transformers to build HV Power Supplies for their amps. Any tips or precautions? 73, Bill ==; /archives//html/Amps/2001-12/msg00342.html (8,025 bytes)

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