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References: [ +from:hsu4qro@gmail.com: 254 ]

Total 254 documents matching your query.

221. Re: [Amps] Source for replacement PS caps (score: 1)
Author: "Hsu" <hsu4qro@gmail.com>
Date: Sat, 11 Oct 2014 08:48:17 +0800
Please make sure let you supplyer show you the origional paper box and Lot. Number, Don't buy any new RUBYCON NICHICON HITACHI caps from Chinese. unless thy show you the lot. number on box. But most
/archives//html/Amps/2014-10/msg00048.html (11,309 bytes)

222. Re: [Amps] 3-500Z quality and new 572B (score: 1)
Author: "Hsu" <hsu4qro@gmail.com>
Date: Tue, 14 Oct 2014 05:40:43 +0800
Should due to the bigget lead inductance?I do not think 572B havd too much anode capacitance.just abit bigger. 572b tubes used in quads have anode capacitance (200ohms) which is troublesome at 15-6 m
/archives//html/Amps/2014-10/msg00057.html (8,327 bytes)

223. Re: [Amps] HV Diodes (score: 1)
Author: "Hsu" <hsu4qro@gmail.com>
Date: Fri, 17 Oct 2014 18:14:47 +0800
Why one 3CX3000A7 amp? we have been waiting on that dual 8877 amp with roller inductor for some time now. Many die hard hams would prefer that over solid state. ______________________________________
/archives//html/Amps/2014-10/msg00107.html (9,091 bytes)

224. [Amps] Chinese GU-74B/4CX800A (score: 1)
Author: "Hsu" <hsu4qro@gmail.com>
Date: Thu, 27 Nov 2014 17:04:57 +0800
I just contact the manufacturer, they quoto $600/ea, really?I bet in this price levelno buyer. Hsu _______________________________________________ Amps mailing list Amps@contesting.com http://lists.c
/archives//html/Amps/2014-11/msg00056.html (6,936 bytes)

225. Re: [Amps] Chinese GU-74B/4CX800A (score: 1)
Author: "Hsu" <hsu4qro@gmail.com>
Date: Thu, 27 Nov 2014 17:39:48 +0800
They told me they delevlop Chinese GU-74B just only for Russian equipment in China. I guess the user is the Force. They are awash with cash. I totally agree with your assessment here Hsu...the manufa
/archives//html/Amps/2014-11/msg00058.html (8,125 bytes)

226. Re: [Amps] Power from Pair of Eimac 4 x 150 a / 7034? (score: 1)
Author: Yueh Hsu <hsu4qro@gmail.com>
Date: Mon, 29 Dec 2014 09:20:28 +0800
HiJim & Carl Yes, Chinese 8877 is my option too.but in lower power level,for example 1000W,what is your option? a GU-74?or a pair GI-7B(GI-46B)?or a pair 3-500Z?I know pulse tubes with bad IMD specs.
/archives//html/Amps/2014-12/msg00129.html (13,468 bytes)

227. Re: [Amps] 572B (score: 1)
Author: "Hsu" <hsu4qro@gmail.com>
Date: Sun, 18 Jan 2015 07:56:03 +0800
I just contact the manufacturer, they told me ,it is short of material,they can not make 572B before end of next month. next month is a very long holiday in China. I had an unexpected failure of one
/archives//html/Amps/2015-01/msg00143.html (7,396 bytes)

228. [Amps] 833A GG (score: 1)
Author: "Hsu" <hsu4qro@gmail.com>
Date: Mon, 26 Jan 2015 14:13:55 +0800
Anyone have experience about 833 works on GG configurtion?Is it can work 10 mtrs?I just contact with the manufacturer, the factory new tube graphite anode,only $50/ea, ,dirt cheap Hsu _______________
/archives//html/Amps/2015-01/msg00290.html (7,328 bytes)

229. Re: [Amps] 833A GG (score: 1)
Author: "Hsu" <hsu4qro@gmail.com>
Date: Mon, 26 Jan 2015 17:09:17 +0800
Yes I just downloaded the 833A's datasheet, Yes the plate to filament capacitance is 8.5P! too much!Yes, I see, It is a challenge to use it built an amplifier. Thanks Bill! Hsu Oddly enough, the 833A
/archives//html/Amps/2015-01/msg00293.html (8,939 bytes)

230. Re: [Amps] 833A GG (score: 1)
Author: "Hsu" <hsu4qro@gmail.com>
Date: Mon, 26 Jan 2015 18:44:51 +0800
Hi Mike, Thanks for your very good and useful information. Yes, you are right.I'll not think off this tube. 833C's manufacturer nearby my home( 300 mtrs apart!) They made 3-500Z too, in past two year
/archives//html/Amps/2015-01/msg00294.html (10,116 bytes)

231. [Amps] Two new amplifiers for sale (score: 1)
Author: "Hsu" <hsu4qro@gmail.com>
Date: Mon, 20 Apr 2015 19:45:25 +0800
A guy ordered two amplifiers,Ill finsh my testing work this week, but He call me just now ,he is ill, and can not oprate the radio for long time, so he decide to cancel the order.Ill sell these again
/archives//html/Amps/2015-04/msg00128.html (6,715 bytes)

232. Re: [Amps] [ham_amplifiers] Two new amplifiers for sale (score: 1)
Author: "Hsu" <hsu4qro@gmail.com>
Date: Tue, 21 Apr 2015 05:18:06 +0800
Lou: This amplifier is Design by OURSELF independently, IT WITHOUT ANY same characteristic as OM's.we DESIGN nad BUILT EVERYTHING.We use shorted bandswitch, larger HV amplifier and indpent filament t
/archives//html/Amps/2015-04/msg00140.html (10,373 bytes)

233. Re: [Amps] Two new amplifiers for sale (score: 1)
Author: "Hsu" <hsu4qro@gmail.com>
Date: Tue, 21 Apr 2015 19:43:16 +0800
Hi , I have upload more pictures here : http://www.zmdz.com/bbs/photobook.asp?page=1&name=DeepBlue&allname=0&ClassID=0 The specs: 1.8-30MHz(ham band only) output 2000 (no mode limit), 3rd IMD order l
/archives//html/Amps/2015-04/msg00150.html (7,726 bytes)

234. [Amps] (no subject) (score: 1)
Author: "Hsu" <hsu4qro@gmail.com>
Date: Tue, 28 Jul 2015 22:37:54 +0800
Hi, My friend of mine are sell the 3-500Z and 8877 socket and chimney,ebay item number 181808974623 and 171861109645. Do not doubt the price, real the bargain, and the quality are good too, he use th
/archives//html/Amps/2015-07/msg00175.html (9,089 bytes)

235. Re: [Amps] QST SB220 on 6M article (score: 1)
Author: "Hsu" <hsu4qro@gmail.com>
Date: Sat, 31 Oct 2015 13:58:49 +0800
About SB220 or TL-922 6m+HF conversion . Is it possible?My friend is selling TL-922 bands witch replacement.If it possible, I can let him build the new band switch replacement for TL-922 and SB-220 m
/archives//html/Amps/2015-11/msg00001.html (7,011 bytes)

236. [Amps] I 'm selling my 2000W amplifier on ebay (score: 1)
Author: "Hsu" <hsu4qro@gmail.com>
Date: Mon, 9 Nov 2015 23:36:38 +0800
I reduced the price grately, nearly no profit! off line deal with me direct:$2K! more detail see Item#: 272040899564.But I will increase the ALL amplifer's price later! 73!Hsu _______________________
/archives//html/Amps/2015-11/msg00041.html (6,743 bytes)

237. Re: [Amps] I 'm selling my 2000W amplifier on ebay (score: 1)
Author: "Hsu" <hsu4qro@gmail.com>
Date: Tue, 10 Nov 2015 12:41:02 +0800
Still no. Because we mainly supply China market now, I'm sure it will have CE and FCC type accepted in future,But I was beset by doubts. I'm not sure how about CE and US market and how long tube PA l
/archives//html/Amps/2015-11/msg00046.html (9,332 bytes)

238. Re: [Amps] TB5/2500 options (score: 1)
Author: "Hsu" <hsu4qro@gmail.com>
Date: Fri, 20 Nov 2015 15:33:20 +0800
TB5/2500 was called FU-606 here , very cheap tube.http://www.hgdzg.com/a/english/Products/blg1/2014/0613/117.html , That is s a a brother of him , FU-605( same as Toshiba 6T51) http://www.hgdzg.com/a
/archives//html/Amps/2015-11/msg00133.html (9,072 bytes)

239. [Amps] May 2kW amplfiier is showing in Dayton (score: 1)
Author: "Hsu" <hsu4qro@gmail.com>
Date: Thu, 19 May 2016 05:52:28 +0800
Have any guy seen it? regards Hsu _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2016-05/msg00030.html (7,071 bytes)

240. [Amps] Identify the tube (score: 1)
Author: "Hsu" <hsu4qro@gmail.com>
Date: Mon, 18 Jul 2016 22:13:02 +0800
I just adquire this tube , could someone can tell me his specs?it seems a microwave triode. Thanks in advance. Hsu http://www.zmdz.com/bbs/incomefiles/20167/2016071879364249.jpg http://www.zmdz.com/b
/archives//html/Amps/2016-07/msg00002.html (7,207 bytes)

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