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References: [ +from:Jbenson@sohu.com: 122 ]

Total 122 documents matching your query.

41. [Amps] NOS metai-cermic tube (score: 1)
Author: "Hsu" <Jbenson@sohu.com>
Date: Sun, 6 Aug 2006 19:13:21 +0800
Hi, I have many Chinese NOS metal-cermic tubes for sale: FU-500F(4X500A), FU-250F(4CX250FG,8621),FU-100F(4CX1000A).if you are interested in them please contact with me. 73! Hsu ______________________
/archives//html/Amps/2006-08/msg00205.html (6,369 bytes)

42. [Amps] Switching power supply for oxide cathode tube 's filament (score: 1)
Author: "Hsu" <Jbenson@sohu.com>
Date: Thu, 10 Aug 2006 06:54:45 +0800
My next project(4X4CX250 or 2*4CX800) will begin, does any guy have this experience?I know that the switching power supply can not used in thoriated tungsten cathode tube's filament.But I do not thin
/archives//html/Amps/2006-08/msg00371.html (6,700 bytes)

43. Re: [Amps] Checking for IMD (score: 1)
Author: "Hsu" <Jbenson@sohu.com>
Date: Sat, 12 Aug 2006 00:02:00 +0800
There is another way, homebrew a inexpensive measure receiver ( please view W7ZOI Wes Hayward's EMRF), it shoud be do this job. I have a question too, we test IMD using a two tone generator and a SSB
/archives//html/Amps/2006-08/msg00400.html (8,216 bytes)

44. [Amps] W6SAI's Radio handbook (score: 1)
Author: "Hsu" <Jbenson@sohu.com>
Date: Thu, 31 Aug 2006 15:33:01 +0800
Hi, I just purchase W6SAI's Radio handbook from Amazon and Yahoo, one is 20th edition ,the other one is 22nd edition(I think it should be 23rd edition,but not),could someone can tell me what dirffren
/archives//html/Amps/2006-08/msg00836.html (6,767 bytes)

45. [Amps] metal thin plate cutter(for home build amplifier's cabinetuse) for sale (score: 1)
Author: "Hsu" <Jbenson@sohu.com>
Date: Thu, 31 Aug 2006 22:18:21 +0800
Hi, I have some double head cutter(using with drill together) for sale, $25/ea,$10 shipping cost.it was using in cutting the any figure hole and line on thin metal plate.Cutting thickness:plate of co
/archives//html/Amps/2006-08/msg00837.html (6,991 bytes)

46. [Amps] metal cermic tube FS (score: 1)
Author: "Hsu" <Jbenson@sohu.com>
Date: Fri, 1 Sep 2006 16:37:57 +0800
Hi, I have some NOS Chinese metal cermic tubes(JAN Grade) for sale,FU-250F(same as 4CX250FG,filament:26.5V ), $25/ea,FU-251F(same as 4CX250B, filament:6V),$25/ea,FU-100F(same as 4CX1000A),$60/ea, FU-
/archives//html/Amps/2006-09/msg00001.html (7,101 bytes)

47. [Amps] 3-500 FS (score: 1)
Author: "Hsu" <Jbenson@sohu.com>
Date: Fri, 1 Sep 2006 16:54:41 +0800
Hi, I have some 3-500 FS, graphite anode, same as RF parts and Tomtube on selling.( only diffrence the tube without RF parts's trad mark,but same factory products) I just send a pair to Australia. if
/archives//html/Amps/2006-09/msg00003.html (6,608 bytes)

48. Re: [Amps] email to Hsu (score: 1)
Author: "Hsu" <Jbenson@sohu.com>
Date: Fri, 1 Sep 2006 20:32:41 +0800
Sorry,Lon This is due to incorrect setting in my e-mail address. I have fix it just now. My e-mail address is jbenson@sohu.com, I missed aletter "m". Sorry to all. 73! Hsu -- Original Message -- From
/archives//html/Amps/2006-09/msg00013.html (7,969 bytes)

49. [Amps] Inexpensive variable air cap for amps (score: 1)
Author: "Hsu" <Jbenson@sohu.com>
Date: Wed, 6 Sep 2006 00:03:28 +0800
Hi, I just purchase some teflon film,the price not too expensive($30/kg). I think I can insert it into low volt/small volum variable air cap as high volt plate tuning cap, I think teflon film with la
/archives//html/Amps/2006-09/msg00101.html (7,397 bytes)

50. [Amps] RFPP53 datasheet (score: 1)
Author: "Hsu" <Jbenson@sohu.com>
Date: Wed, 6 Sep 2006 08:10:55 +0800
Hi, I have a 1kw power amplifier board what using 8XRFPP53 in push-pull, it is say RFPP53=MRF150 ,is that right?Thanks! 73! Hsu _______________________________________________ Amps mailing list Amps@
/archives//html/Amps/2006-09/msg00109.html (6,492 bytes)

51. Re: [Amps] Inexpensive variable air cap for amps (score: 1)
Author: "Hsu" <Jbenson@sohu.com>
Date: Wed, 6 Sep 2006 08:19:03 +0800
Robert, I'm doing this now, the film is easy to insert,it should enough larger cover all cap's plates, if not ,the film will corrugation when we roate the cap.I have insert some.I think the main prob
/archives//html/Amps/2006-09/msg00110.html (9,353 bytes)

52. [Amps] NOS 4CX1000A test and reconditioning (score: 1)
Author: "Hsu" <Jbenson@sohu.com>
Date: Wed, 6 Sep 2006 20:07:11 +0800
Hi, I will send some NOS Chinese metal-cermic 4CX1000A(we called FU-100F)tubes to some guys in the list. I think I should test every tube after I send them.But I have not any amp using 4CX1000A,(the
/archives//html/Amps/2006-09/msg00115.html (7,386 bytes)

53. Re: [Amps] NOS 4CX1000A test and reconditioning (score: 1)
Author: "Hsu" <Jbenson@sohu.com>
Date: Wed, 6 Sep 2006 20:13:39 +0800
PS,I want to how to test and recondition thoriated tungsten tube ex. 4X500A too.Thanks! 73! Hsu _______________________________________________ Amps mailing list Amps@contesting.com http://lists.cont
/archives//html/Amps/2006-09/msg00116.html (6,580 bytes)

54. Re: [Amps] Inexpensive variable air cap for amps (score: 1)
Author: "Hsu" <Jbenson@sohu.com>
Date: Wed, 6 Sep 2006 21:14:32 +0800
Peter, I'm planning to built a portable light weiht 4CX1000A AMP, I need the minture HV caps. I found simlar design in a very old Chinese solid transmitter, it design in end of 1960s. I think there i
/archives//html/Amps/2006-09/msg00119.html (8,342 bytes)

55. Re: [Amps] Bird 43 meter (score: 1)
Author: "Hsu" <Jbenson@sohu.com>
Date: Tue, 19 Sep 2006 13:44:53 +0800
Hi,Larry I just test the meter,the resistance is 1382 ohms -- Original Message -- From: "Larry" <larry@w7iuv.com> To: "AMPS" <amps@contesting.com> Sent: Tuesday, September 19, 2006 6:14 AM Subject: [
/archives//html/Amps/2006-09/msg00218.html (7,717 bytes)

56. Re: [Amps] amplifier design (score: 1)
Author: "Hsu" <Jbenson@sohu.com>
Date: Wed, 20 Sep 2006 12:46:12 +0800
Hello from China! A book, Written by William I. Orr W6SAI named Radio handbook , it is a very good book about amplifier design, Amazon still have some old books for sale , but the price look like exp
/archives//html/Amps/2006-09/msg00241.html (7,581 bytes)

57. [Amps] K2XX's e-mail (score: 1)
Author: "Hsu" <Jbenson@sohu.com>
Date: Thu, 21 Sep 2006 20:11:57 +0800
Hi, I just send an e-mail to K2XX, Joe ,but the e-mail have been bounced. Hsu _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman
/archives//html/Amps/2006-09/msg00258.html (6,256 bytes)

58. [Amps] Large band switch for sale (score: 1)
Author: "Hsu" <Jbenson@sohu.com>
Date: Mon, 25 Sep 2006 10:25:42 +0800
Hi, I have some hi-power band switchs for sale, 2-pole,6-posion cermic switch,$70+shipping, JPG at below: http://www.cnham.net/bbs/attachment.php?aid=45508 http://www.cnham.net/bbs/attachment.php?aid
/archives//html/Amps/2006-09/msg00300.html (6,732 bytes)

59. [Amps] New Chinese linear Amplifier (score: 1)
Author: "Hsu" <Jbenson@sohu.com>
Date: Fri, 29 Sep 2006 18:29:27 +0800
Very simlar AL811 http://www.hellocq.net/forum/showthread.php?postid=1565087#poststop _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com
/archives//html/Amps/2006-09/msg00352.html (6,414 bytes)

60. Re: [Amps] New Chinese linear Amplifier (score: 1)
Author: "Hsu" <Jbenson@sohu.com>
Date: Sat, 30 Sep 2006 06:56:10 +0800
The amp sells in China only until now.The manufactor is my friend.Not me. It have wires connect to plate caps.Maybe the picture are not clearly. Hsu -- Original Message -- From: "kenw2dtc" <kenw2dtc@
/archives//html/Amps/2006-09/msg00372.html (8,617 bytes)

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