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Total 163 documents matching your query.

61. Re: [Amps] Henry Repair (score: 1)
Author: "W7RY" <w7ry@arrl.net>
Date: Sat, 22 Nov 2008 19:02:04 -0800
The Amps reflector does it again! I have found the parts that I need for my Henry 3K repair. Thanks! 73 Jim W7RY Well I got the new Henry 3K Classic MKII and the ceramic standoffs that hold the bleed
/archives//html/Amps/2008-11/msg00229.html (7,443 bytes)

62. Re: [Amps] Ameritron AL-1200 problem on 160 meters (score: 1)
Author: "W7RY" <w7ry@arrl.net>
Date: Wed, 26 Nov 2008 07:41:58 -0800
It sounds like a good first step is to buy or borrow a dummy load. Even a $30.00 hamfest special Heathkit Cantenna would work just fine. 73 Jim W7RY Hi, I recently picked up a used AL-1200. I tried t
/archives//html/Amps/2008-11/msg00237.html (8,808 bytes)

63. Re: [Amps] rx noise? (score: 1)
Author: "W7RY" <w7ry@arrl.net>
Date: Sat, 6 Dec 2008 21:25:41 -0800
I would suspect the HV diodes rather than the filter caps. You did say there was plate voltage fluctuations? 73 Jim W7RY I really, REALLY hate intermittent problems like this... it wouldn't do it col
/archives//html/Amps/2008-12/msg00133.html (13,162 bytes)

64. Re: [Amps] Plate choke resonance and safe operation (score: 1)
Author: "W7RY" <w7ry@arrl.net>
Date: Sun, 7 Dec 2008 13:40:53 -0800
We are limited to 150 watts on 30 meters here in the US. So a plate choke resonance at 10 MHz is good for us. 73 Jim W7RY Unfortunately 10% doesnt fly if you want 10 and 12M Carl KM1H -- Original Mes
/archives//html/Amps/2008-12/msg00153.html (12,831 bytes)

65. Re: [Amps] Closure on the Vacuum Relays, Plus... (score: 1)
Author: "W7RY" <w7ry@arrl.net>
Date: Thu, 11 Dec 2008 18:20:13 -0800
Good info Larry. But why do you think it's only applicable to CW? What about RTTY? How about VOX SSB? When the PTT line is taken low by the PTT relay (in RTTY mode), how long before PTT, does the rad
/archives//html/Amps/2008-12/msg00199.html (10,078 bytes)

66. Re: [Amps] WTB Henry Choke (score: 1)
Author: "W7RY" <w7ry@arrl.net>
Date: Sat, 13 Dec 2008 09:39:01 -0800
Did you try Henry? They seem to be selling transformers and chokes on Ebay. 73 Jim W7RY GM All... Looking for a working HV choke used in the Henry Tempo 2002/2006/6N2 VHF amplifiers...maybe even a pa
/archives//html/Amps/2008-12/msg00214.html (7,831 bytes)

67. Re: [Amps] Looking for Henry parts (score: 1)
Author: "Jim W7RY" <w7ry@arrl.net>
Date: Thu, 18 Dec 2008 09:41:08 -0800
There was a complete bandswitch for a 1KD on Ebay. And it did have the cams on it. 73 Jim W7RY _______________________________________________ Amps mailing list Amps@contesting.com http://lists.conte
/archives//html/Amps/2008-12/msg00259.html (7,373 bytes)

68. Re: [Amps] Tech info sought (score: 1)
Author: "Jim W7RY" <w7ry@arrl.net>
Date: Fri, 19 Dec 2008 11:37:55 -0800
The Sunair used a 4CX1500 tube. Not the 3CX1500/8877 so it has screen voltage. Just want to clairify 73 Jim W7RY _______________________________________________ Amps mailing list Amps@contesting.com
/archives//html/Amps/2008-12/msg00271.html (7,972 bytes)

69. Re: [Amps] shielded HV connector (score: 1)
Author: "Jim W7RY" <w7ry@arrl.net>
Date: Sat, 27 Dec 2008 12:39:38 -0800
I like those Steve! I have not seen them before. I did a Google search for a picture of one... I did not want to use a "standard" coaxial connector, even a type N or BNC. I have too much equipment in
/archives//html/Amps/2008-12/msg00351.html (9,622 bytes)

70. Re: [Amps] SHV HV Connector (score: 1)
Author: "Jim W7RY" <w7ry@arrl.net>
Date: Sun, 28 Dec 2008 23:13:59 -0800
I just bought a pair of chassis and a pair for cable on EBay for $43.00 shipped. It was from two different venders but I did a "make an offer". They have more. Just do a search on SHV connectors. 73
/archives//html/Amps/2008-12/msg00361.html (8,866 bytes)

71. Re: [Amps] SB-220 schematic error (score: 1)
Author: "Jim W7RY" <w7ry@arrl.net>
Date: Mon, 29 Dec 2008 10:58:47 -0800
They are wired into this spot. I have had several SB-220s and the assembly instructions have you install them this way. They are also depicted this way on the original schematic. All the amplifiers t
/archives//html/Amps/2008-12/msg00367.html (11,283 bytes)

72. Re: [Amps] Thanks, Hipersil, the myth and the truth. (Updated) (score: 1)
Author: "Jim W7RY" <w7ry@arrl.net>
Date: Wed, 31 Dec 2008 18:12:40 -0800
Ahhhh... Article? What article is that? Happy New Year! 73 Jim W7RY _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/
/archives//html/Amps/2009-01/msg00000.html (7,596 bytes)

73. [Amps] Pictures (score: 1)
Author: "Jim W7RY" <w7ry@arrl.net>
Date: Fri, 2 Jan 2009 12:54:42 -0800
There was a DX station that was interested in my homebrew 8877 project that is patterned after the K8RA 3CX1500D7 ARRL Handbook amplifier. I have changed computers and don't have the info. Please con
/archives//html/Amps/2009-01/msg00018.html (6,707 bytes)

74. Re: [Amps] Balast Resistor used in Henry PA's (score: 1)
Author: "Jim W7RY" <w7ry@arrl.net>
Date: Wed, 7 Jan 2009 20:43:02 -0800
It's called a cone heater. http://www.process-heating.com/CDA/Archives/580bd902cd4fd010VgnVCM100000f932a8c0____ 73 Jim W7RY _______________________________________________ Amps mailing list Amps@cont
/archives//html/Amps/2009-01/msg00052.html (8,451 bytes)

75. Re: [Amps] Balast Resistor used in Henry PA's (score: 1)
Author: "Jim W7RY" <w7ry@arrl.net>
Date: Wed, 7 Jan 2009 20:50:23 -0800
And there is one on EBay for 8 bucks. Item 370139624703 73 Jim W7RY _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/
/archives//html/Amps/2009-01/msg00053.html (9,272 bytes)

76. Re: [Amps] Balast Resistor used in Henry PA's (score: 1)
Author: "Jim W7RY" <w7ry@arrl.net>
Date: Wed, 7 Jan 2009 21:23:21 -0800
I wrote nothing of the sort! I'm not looking for balast resistors. I simply advised two places to find them. 73 Jim W7RY _______________________________________________ Amps mailing list Amps@contest
/archives//html/Amps/2009-01/msg00055.html (8,504 bytes)

77. Re: [Amps] WTB: Jennings RJ1A or Kilovac HC1 (score: 1)
Author: "Jim W7RY" <w7ry@arrl.net>
Date: Sat, 10 Jan 2009 07:27:14 -0800
Alan Bond has them. Max Gain Systems. 73 Jim W7RY _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2009-01/msg00076.html (7,345 bytes)

78. Re: [Amps] plate bypass caps (score: 1)
Author: "Jim W7RY" <w7ry@arrl.net>
Date: Sun, 11 Jan 2009 17:42:09 -0800
Lots of .01 5-8 KV caps available on EBay from Chinese sellers. They are easy to deal with and sell pretty good stuff. I'm using some of their stuff in my 8877 project now underway. 73 Jim W7RY _____
/archives//html/Amps/2009-01/msg00094.html (7,913 bytes)

79. Re: [Amps] plate bypass caps (score: 1)
Author: "Jim W7RY" <w7ry@arrl.net>
Date: Sun, 11 Jan 2009 20:44:20 -0800
Yup! Here are some. They are 5000 PF but just put two of them in parallel for .01 at 4KV. Steve said 2700 volts. So these should work fine? Ebay Item number 260288197318 73 Jim W7RY _________________
/archives//html/Amps/2009-01/msg00099.html (9,465 bytes)

80. Re: [Amps] plate bypass caps (score: 1)
Author: "Jim W7RY" <w7ry@arrl.net>
Date: Sun, 11 Jan 2009 21:22:42 -0800
There is no RF current (or very little) to speak of at the BASE (cold RF end) of the plate choke. 73 Jim W7RY _______________________________________________ Amps mailing list Amps@contesting.com htt
/archives//html/Amps/2009-01/msg00101.html (11,621 bytes)

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