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Total 254 documents matching your query.

81. Re: [Amps] Blower source (score: 1)
Author: "Hsu" <hsu4qro@gmail.com>
Date: Sat, 13 Nov 2010 14:58:47 +0800
In my option, dual inlet blower is the best. I have compare with some amps. EMTRON DX-2SP ,AL-1200, AL-1500 and our amplifier, The amps what using dual inlet is the most quiet. We using D2E-097 blowe
/archives//html/Amps/2010-11/msg00193.html (8,490 bytes)

82. [Amps] Cleanpig shack III (score: 1)
Author: "Hsu" <hsu4qro@gmail.com>
Date: Sat, 13 Nov 2010 18:56:59 +0800
NOS GI-70B/BT(FM-70F/FT).$15/ea,I have 60 pieces, 2X365P air variable receivering capacitor, used but good. $5/ea,I have 100 pieces. you can calculate the shipping as these : surface mail:$(4+3*weigh
/archives//html/Amps/2010-11/msg00195.html (6,427 bytes)

83. Re: [Amps] [ham_amplifiers] Cleanpig shack III (score: 1)
Author: "Hsu" <hsu4qro@gmail.com>
Date: Sun, 14 Nov 2010 13:19:22 +0800
All brand new FM-70F are sold.I still have some seems old, but NOS FM-70F/FT( same as GI-70B/BT). $10/ea.Only oxidation. Two hi-volt air variable capacitors, one is dual gang.These can fit 4CX5000/10
/archives//html/Amps/2010-11/msg00200.html (9,030 bytes)

84. Re: [Amps] [ham_amplifiers] Cleanpig shack III (score: 1)
Author: "Hsu" <hsu4qro@gmail.com>
Date: Sun, 14 Nov 2010 13:24:51 +0800
All brand new FM-70F are sold.I still have some seems old, but NOS FM-70F/FT( same as GI-70B/BT). $10/ea.Only oxidation. Two hi-volt air variable capacitors, one is dual gang.These can fit 4CX5000/10
/archives//html/Amps/2010-11/msg00201.html (9,079 bytes)

85. Re: [Amps] 2010 Handbook (score: 1)
Author: "Hsu" <hsu4qro@gmail.com>
Date: Wed, 17 Nov 2010 08:11:54 +0800
I do not know why ARRL stiill published so old article, as you know, the 4CX1600B is rare and expensive part. It is bizarrerie, why few person using 4CX1000A? It has legal power. 73!Hsu -- Original M
/archives//html/Amps/2010-11/msg00279.html (9,534 bytes)

86. Re: [Amps] 2010 Handbook (score: 1)
Author: "Hsu" <hsu4qro@gmail.com>
Date: Wed, 17 Nov 2010 19:09:46 +0800
Thanks Roger! I'm benefit a lot from it. _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2010-11/msg00294.html (12,434 bytes)

87. [Amps] Silicon Carbide J-FET (score: 1)
Author: "Hsu" <hsu4qro@gmail.com>
Date: Thu, 25 Nov 2010 20:47:13 +0800
I just download some SemiSouth's Silicon Carbide power J-FET datasheet,I found these FET's shoud with very good frequency response, anyone use it build RF amplifier or antenna switch? 73!Hsu ________
/archives//html/Amps/2010-11/msg00436.html (6,339 bytes)

88. Re: [Amps] Silicon Carbide J-FET (score: 1)
Author: "Hsu" <hsu4qro@gmail.com>
Date: Fri, 26 Nov 2010 05:23:13 +0800
I have some datasheets of these device. Hsu _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2010-11/msg00452.html (7,532 bytes)

89. Re: [Amps] Tube Cooling.. (score: 1)
Author: "Hsu" <hsu4qro@gmail.com>
Date: Fri, 26 Nov 2010 12:33:17 +0800
_______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2010-11/msg00463.html (9,449 bytes)

90. [Amps] Band switch. (score: 1)
Author: "Hsu" <hsu4qro@gmail.com>
Date: Thu, 9 Dec 2010 12:39:58 +0800
Hello every one, I'll begin our next project, 1kW 3X4CX250 amplifier.I'll make some band switchs base on the Model 80 again,( our existing new 2000W amplifier band switch is based on model 86).But du
/archives//html/Amps/2010-12/msg00078.html (7,630 bytes)

91. Re: [Amps] Band switch. (score: 1)
Author: "Hsu" <hsu4qro@gmail.com>
Date: Thu, 9 Dec 2010 13:03:20 +0800
Again,Though my new band switch based on model 80, but it is not copy from model 80. it same as modle 80's size,but 86's break down volt and current rating,All the parts is diffrence from 80's at all
/archives//html/Amps/2010-12/msg00079.html (8,544 bytes)

92. Re: [Amps] Band switch. a bad news (score: 1)
Author: "Hsu" <hsu4qro@gmail.com>
Date: Thu, 9 Dec 2010 21:12:25 +0800
About this band switch, I just contact with some parts manufacturer, a bad news, the cos t of dies markup 40% than 2 years ago I order that model 86's ! All over world deflation, but besides here! I'
/archives//html/Amps/2010-12/msg00080.html (9,145 bytes)

93. Re: [Amps] Band switch. (score: 1)
Author: "Hsu" <hsu4qro@gmail.com>
Date: Fri, 10 Dec 2010 09:18:13 +0800
Some pictures of our existing band switch, it was uede in our 2000W amplifier.Please view thishttp://www.zmdz.com/bbs/photobook.asp?page=1&name=DeepBlue&ClassID=0 It based on Multi-tech model 86. But
/archives//html/Amps/2010-12/msg00086.html (6,897 bytes)

94. Re: [Amps] [ham_amplifiers] Re: Band switch. bounced ,send again! (score: 1)
Author: "Hsu" <hsu4qro@gmail.com>
Date: Fri, 10 Dec 2010 10:52:57 +0800
Hello everyone, Thanks for reply my topic.This band switch what I just showed (http://www.zmdz.com/bbs/photobook.asp?page=1&name=DeepBlue&ClassID=0 )is our existing band switch,It was used in our HF2
/archives//html/Amps/2010-12/msg00087.html (8,020 bytes)

95. Re: [Amps] [rfamplifiers] Re: Band switch. (score: 1)
Author: "Hsu" <hsu4qro@gmail.com>
Date: Fri, 10 Dec 2010 22:25:05 +0800
It depond on the quantity.I guess maybe $120( 3 desks).duo to few of people order it. About the guarantee, if you would like Mult-tech's price, I can supply the metal parts( contactor ,etc) until you
/archives//html/Amps/2010-12/msg00092.html (9,222 bytes)

96. Re: [Amps] QSK-5 AL-811 and K3 (score: 1)
Author: "Hsu" <hsu4qro@gmail.com>
Date: Fri, 10 Dec 2010 22:26:17 +0800
Anyone using SiC diode to replace the PIN diode in QSK-5? 73!Hsu -- Original Message -- From: "Sam Morgan" <k5oai.sam@gmail.com> To: <amps@contesting.com> Sent: Friday, December 10, 2010 9:31 PM Subj
/archives//html/Amps/2010-12/msg00093.html (7,408 bytes)

97. Re: [Amps] [ham_amplifiers] Re: Band switch. (score: 1)
Author: "Hsu" <hsu4qro@gmail.com>
Date: Sat, 11 Dec 2010 11:01:47 +0800
Thanks who respond my topic, especially Alek, Thanks for your trust!My dear old friend. About the shipping cost,It is incorrect. I do not know the situation in Singapore. But China Post is a monopoli
/archives//html/Amps/2010-12/msg00101.html (11,986 bytes)

98. Re: [Amps] 4 X 4-400C or 4 X 3-500Z HF amplifier (score: 1)
Author: "Hsu" <hsu4qro@gmail.com>
Date: Sun, 12 Dec 2010 11:39:04 +0800
_______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2010-12/msg00127.html (9,075 bytes)

99. Re: [Amps] 572B AMP PLANS (score: 1)
Author: "Hsu" <hsu4qro@gmail.com>
Date: Mon, 27 Dec 2010 08:02:52 +0800
Jeff, In your experience, how long tube life of GI-7B? Hsu -- Original Message -- From: "Jeff Blaine" <keepwalking188@yahoo.com> To: "Roger (K8RI)" <sub1@rogerhalstead.com>; <amps@contesting.com> Sen
/archives//html/Amps/2010-12/msg00382.html (8,534 bytes)

100. Re: [Amps] 572B AMP PLANS (score: 1)
Author: "Hsu" <hsu4qro@gmail.com>
Date: Mon, 27 Dec 2010 12:01:22 +0800
Jeff, Thanks!IMO, I would like use GI-7B or 813 in GG. 811A/572B with very short life especially 811A. My friends have some AL811/811H, the Chinese 811A only have few hundred hours tube life.the 813
/archives//html/Amps/2010-12/msg00388.html (12,789 bytes)

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