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101. [Amps] Manuals needed (score: 1): Author: "Hsu" <hsu4qro@gmail.com>; Date: Tue, 28 Dec 2010 04:55:58 +0800; I have a set of ITT/Mackey 1kW amplifier MSR1020M (16XMRF150) ,MSR6212M power supply and MSR6700A exciter, I'm looking for the manuals/schematic diagrams .Thanks in advance! 73!Hsu. _________________; /archives//html/Amps/2010-12/msg00398.html (6,259 bytes)
102. [Amps] Clean the shack V (score: 1): Author: "Hsu" <hsu4qro@gmail.com>; Date: Sun, 2 Jan 2011 21:05:47 +0800; Clean the shack.3X brand new NOS Chinese 3CX1500A7: $400/ea 25X Chinese GI-7B with cooler ,$25/ea,ROHDE SCHWARTZ NRS RF power meter,with power sensor . $450; HP8640B SSG, $300.Both are in very good w; /archives//html/Amps/2011-01/msg00014.html (6,503 bytes)
103. [Amps] Alpha Amplifier (score: 1): Author: "Hsu" <hsu4qro@gmail.com>; Date: Mon, 3 Jan 2011 22:39:54 +0800; The Alpha's amplifier is the first modern amplifier from the West what I seen in 1995 Beijing DX convention( I just get the amateur radio licence in 1994 . )It is amazing amplifier.I still keep the p; /archives//html/Amps/2011-01/msg00025.html (9,021 bytes)
104. [Amps] the sockets and chimney for (score: 1): Author: "Hsu" <hsu4qro@gmail.com>; Date: Tue, 4 Jan 2011 21:05:52 +0800; I have brand new 8 modifyed sockets+ chimneys for 4CX1500B/4CX10000A and FU-728F( origional only for FU-728F). $90/ea, material: siller-gilt brass/beryllium bronze and 95% Al2O3 Ceramic( better than; /archives//html/Amps/2011-01/msg00033.html (6,549 bytes)
105. [Amps] Of topic:the HF transceiver in fighter (score: 1): Author: "Hsu" <hsu4qro@gmail.com>; Date: Tue, 11 Jan 2011 16:59:02 +0800; Hi, I had ever own a 2-18Mhz tracnsceiver in Chinese fighter, It was ueds in old J8II fighter. Doese anyone can tell me what cover range and power of HF transceiver in F-15 or 16 fighter?Just interes; /archives//html/Amps/2011-01/msg00122.html (7,534 bytes)
106. Re: [Amps] Of topic:the HF transceiver in fighter (score: 1): Author: "Hsu" <hsu4qro@gmail.com>; Date: Tue, 11 Jan 2011 17:19:09 +0800; The video here:http://www.56.com/flashApp/56.10.12.03.c.swf?vid=NTc3NTI4NTA&ref, wait 10 seconds. -- Original Message -- From: "Hsu" <hsu4qro@gmail.com> To: <ham_amplifiers@yahoogroups.com> Cc: <amps; /archives//html/Amps/2011-01/msg00123.html (7,668 bytes)
107. Re: [Amps] Source for 2SC5305D transistors (score: 1): Author: "Hsu" <hsu4qro@gmail.com>; Date: Wed, 12 Jan 2011 08:33:32 +0800; Try MJE13007, very inexpensive. I have found some resource in China, But I'm not sure it is fake.Just CNY2($30C) 73!Hsu -- Original Message -- From: "kingwood" <k5jv@kingwoodcable.com> To: "Amp Refle; /archives//html/Amps/2011-01/msg00128.html (8,638 bytes)
108. [Amps] SK2210 Socket for 3CX1500A7 / 8877 (score: 1): Author: "Hsu" <hsu4qro@gmail.com>; Date: Sat, 15 Jan 2011 12:18:06 +0800; I just finshed a project:3CX1500A7/8877 socket, SK2210.I'm looking the amplifier builder/ manufacturer and the dealer. if you interested in it ,please contact with me direct.please view the pictures; /archives//html/Amps/2011-01/msg00148.html (6,671 bytes)
109. Re: [Amps] 572Bs (score: 1): Author: "Hsu" <hsu4qro@gmail.com>; Date: Thu, 20 Jan 2011 07:41:15 +0800; Alek, Frankly, this price even lower than I can get from my dealer.I know the manufacturer's list price,this price only few gross profit.If the manufacturer return some gain to seller in the end of a; /archives//html/Amps/2011-01/msg00192.html (18,741 bytes)
110. Re: [Amps] 572Bs (score: 1): Author: "Hsu" <hsu4qro@gmail.com>; Date: Fri, 21 Jan 2011 01:38:21 +0800; The Chinese 572B's manufacturer Jingguang just a second-rate tube manufacturer in China. The best glass bottle maunfacturer is BOE Groups(http://www.boe.com.cn/) and Sanle Groups,.( 3-500Z 's manufac; /archives//html/Amps/2011-01/msg00203.html (9,381 bytes)
111. Re: [Amps] switching mosfet rf amp - choice, schematic, and layout (score: 1): Author: "Hsu" <hsu4qro@gmail.com>; Date: Fri, 21 Jan 2011 16:55:51 +0800; As far as I know, Some CB amplifier s use IRF520 and Fairchild HUF7534P3 in Parallel Push-Pull. I had mentioned SiC J-FET , this component have very good frequence response. Maybe I can get some samp; /archives//html/Amps/2011-01/msg00209.html (8,490 bytes)
112. Re: [Amps] Why no 28 MHz (score: 1): Author: "Hsu" <hsu4qro@gmail.com>; Date: Wed, 26 Jan 2011 11:04:43 +0800; I just repaired two AL1500s for my friends, i found theat these amps use difference choke, the USA version can not work in 10m, you must replace the original choke! I use a vector network analyser te; /archives//html/Amps/2011-01/msg00292.html (9,016 bytes)
113. Re: [Amps] source for band switch (score: 1): Author: "Hsu" <hsu4qro@gmail.com>; Date: Wed, 16 Feb 2011 00:41:37 +0800; I notice that he use Nylon shaft.We had use similar design in some prototypes of HF2000DX amplifier. But Nylon is not good material for RF use, in 5 prototypes , there is a band switch arc , the arc; /archives//html/Amps/2011-02/msg00122.html (8,551 bytes)
114. Re: [Amps] source for band switch (score: 1): Author: "Hsu" <hsu4qro@gmail.com>; Date: Wed, 16 Feb 2011 00:44:34 +0800; I'll finsh the band swith project. I would like to share some experience about the band switch. I notice that he use Nylon shaft.We had use similar design in some prototypes of HF2000DX amplifier. Bu; /archives//html/Amps/2011-02/msg00123.html (8,629 bytes)
115. Re: [Amps] 4CX5000A/4CX10000D sockets FS (score: 1): Author: "Hsu" <hsu4qro@gmail.com>; Date: Wed, 16 Mar 2011 19:09:28 +0800; I forot, the sockets are used. -- Original Message -- From: "Hsu" <hsu4qro@gmail.com> To: <ham_amplifiers@yahoogroups.com> Cc: <amps@contesting.com> Sent: Wednesday, March 16, 2011 6:25 PM Subject: 4; /archives//html/Amps/2011-03/msg00118.html (6,629 bytes)
116. [Amps] 4CX5000/4CX1000D/J sockets for sale (score: 1): Author: "Hsu" <hsu4qro@gmail.com>; Date: Fri, 25 Mar 2011 15:20:41 +0800; I have two sockets for sale.Few contact fingers are broken,.But these still usuable. $200/ea. I can return to the manufacturer and retread it like new ,Add $180/ea. 73!Hsu ___________________________; /archives//html/Amps/2011-03/msg00197.html (6,785 bytes)
117. [Amps] ICOM 751A for sale (score: 1): Author: "Hsu" <hsu4qro@gmail.com>; Date: Mon, 28 Mar 2011 14:55:22 +0800; IC751A with PS35 switching power supply, the PS35 just pull from my IC765. This rig as my backup trx for mnay years. $500 shipped. 73! Hsu _______________________________________________ Amps mailing; /archives//html/Amps/2011-03/msg00221.html (6,540 bytes)
118. Re: [Amps] Homebrew is back.. (score: 1): Author: "Hsu" <hsu4qro@gmail.com>; Date: Tue, 29 Mar 2011 05:58:21 +0800; There are so many 813 resource in China ( NOS and factory new ) that I'm designing 2x813 GG amplifier 73!Hsu. -- Original Message -- From: "Fuqua, Bill L" <wlfuqu00@uky.edu> To: "Diane & Edward Swyna; /archives//html/Amps/2011-03/msg00234.html (15,477 bytes)
119. Re: [Amps] Homebrew is back.. (score: 1): Author: "Hsu" <hsu4qro@gmail.com>; Date: Tue, 29 Mar 2011 07:26:25 +0800; There are so many 813 resource in China ( NOS and factory new ) that I'm designing 2x813 GG amplifier 73!Hsu. _______________________________________________ Amps mailing list Amps@contesting.com htt; /archives//html/Amps/2011-03/msg00282.html (14,874 bytes)
120. Re: [Amps] 813 Amplifier Article (score: 1): Author: "Hsu" <hsu4qro@gmail.com>; Date: Thu, 31 Mar 2011 08:25:18 +0800; You need modify its Pi network in 10mtrs, if not this amplifier will not work in 10 mtrs ,I use Chinese 813, but withuout experience in American 813. 73!Hsu -- Original Message -- From: "Vic K2VCO" <; /archives//html/Amps/2011-03/msg00283.html (11,236 bytes)

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