Search String: Display: Description: Sort:

Results:

References: [ +from:ranchorobbo@gmail.com: 440 ]

Total 440 documents matching your query.

81. Re: [Amps] Pulse tuning (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Wed, 22 Sep 2010 11:07:10 -0500
Sure you can "splatter" with CW--it is called key clicks. Any way you instantaneously break off or make a carrier so it has an instantaneous rise you will have a burst of wide frequency energy. The f
/archives//html/Amps/2010-09/msg00259.html (7,515 bytes)

82. [Amps] Thordarson iron (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Wed, 22 Sep 2010 11:09:10 -0500
Bill, The Thordarson transformer sounds nice--wasn't it around 1.8 KVA? Whatever you do, don't float the secondary CT and try to use it with FWB rectifier. 73 Rob K5UJ _______________________________
/archives//html/Amps/2010-09/msg00260.html (6,771 bytes)

83. Re: [Amps] Holes vs. screen for chassis ventilation? (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Wed, 6 Oct 2010 13:52:32 -0500
I run a Centurion on AM with the expansion steel over the RF deck side exhaust, and over another hole cut in the top over the tank circuit. I am interested in what is motivating the desire for shield
/archives//html/Amps/2010-10/msg00062.html (8,747 bytes)

84. [Amps] EID (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Tue, 19 Oct 2010 13:44:45 -0500
I have tried to figure out what EID stands for and have come up with Electron-Induced Desorption. Is that what we're discussing here? I've seen EID or something like it thrown around before and never
/archives//html/Amps/2010-10/msg00302.html (6,575 bytes)

85. Re: [Amps] EID (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Tue, 19 Oct 2010 16:31:00 -0500
Okay Carl tnx; I think IED is Improvised Explosive Device like what they have roadside in Iraq but the AL1200 didn't need a cell phone to detonate it. Rob K5UJ _______________________________________
/archives//html/Amps/2010-10/msg00310.html (9,171 bytes)

86. Re: [Amps] EID (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Wed, 20 Oct 2010 07:08:41 -0500
Oh it take me awhile but I can get some of it eventually hi hi Rob K5UJ _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listi
/archives//html/Amps/2010-10/msg00325.html (10,387 bytes)

87. Re: [Amps] construct ferrite "line isolator" (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Wed, 27 Oct 2010 07:26:01 -0500
Jim, what method do you employ to find the Pin 1 problem on a piece of equipment out on a trade show floor? I assume it must be a fairly simple check I can employ in my ham shack. tnx 73 Rob K5UJ __
/archives//html/Amps/2010-10/msg00405.html (9,006 bytes)

88. Re: [Amps] construct ferrite "line isolator" (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Wed, 27 Oct 2010 13:39:29 -0500
Jim and Jim, thanks for your answers. Yes, I suspected most rigs built for hams probably had the Pin 1 problem. Ian, "Pin 1" may not mean anything initially but once you read about it, it does. The "
/archives//html/Amps/2010-10/msg00419.html (8,523 bytes)

89. Re: [Amps] A dual 4-1000 amp (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Sat, 27 Nov 2010 12:57:39 -0600
Patrick, Chuck, whoever you are, I strongly suggest you start out with a project that is a bit less ambitious but very valuable educationally. I advise you to acquire a SB220 and use it as a project
/archives//html/Amps/2010-11/msg00517.html (8,266 bytes)

90. Re: [Amps] Help identifying tubes (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Thu, 2 Dec 2010 10:55:58 -0600
Wow Jim, you sure know how to set yourself up hi hi. Rob K5UJ _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2010-12/msg00007.html (7,065 bytes)

91. Re: [Amps] TenTec Centurion - 422 tuning question (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Thu, 23 Dec 2010 10:48:24 -0600
<<< I am not completely familiar with the Centurian, but most amplifiers number  their load controls from 1 to 10 and from left to right.  That being the case, the maximum load value (in pf)  should
/archives//html/Amps/2010-12/msg00317.html (7,966 bytes)

92. Re: [Amps] TenTec Centurion - 422 tuning question (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Fri, 24 Dec 2010 10:31:06 -0600
Unless I missed something, the Centurion doesn't have a safety to ground choke (which sort of surprises me). I don't know if that is unusual among manufactured amps or not. Padding caps on the tune c
/archives//html/Amps/2010-12/msg00338.html (10,346 bytes)

93. Re: [Amps] Transformer advice (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Thu, 13 Jan 2011 11:50:51 -0600
There's also Electronic Products Design in N.C. http://www.epd-inc.com/ I have one of their transformers, a 1 A 120 - 0 - 120 to 2450 v. no CT 45 lb job that I bought used a month ago. I have not tri
/archives//html/Amps/2011-01/msg00137.html (7,533 bytes)

94. Re: [Amps] Transformer-LESS advice (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Fri, 14 Jan 2011 19:05:26 -0600
Steve, Well, Watts Unlimited was owned by W9QQ so if you could contact him, you might be able to get some information about it. GL Rob K5UJ _______________________________________________ Amps mailin
/archives//html/Amps/2011-01/msg00145.html (7,039 bytes)

95. Re: [Amps] amp with push-pull output and magnetic coupling to the antenn (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Sat, 29 Jan 2011 14:38:56 -0600
Hi Gene, <<<However, as many readers of this probably know, it is, ah, "uncommon" Heh heh, tell that to all the guys running BC-610s. It sounds like you are trying to construct a linear amp but with
/archives//html/Amps/2011-01/msg00406.html (9,167 bytes)

96. Re: [Amps] Al-82 Blowing fuses? (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Fri, 25 Feb 2011 10:06:18 -0600
I suppose there is a possibility that you had the misfortune to get some fuses the first time that were defective. Where were they made? (hint hint). Rob K5UJ ________________________________________
/archives//html/Amps/2011-02/msg00184.html (7,612 bytes)

97. [Amps] door knob capacitors (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Mon, 28 Feb 2011 10:58:39 -0600
You don't want to use doorknobs as loading caps especially on 160. they won't handle the current. Learned that the hard way. When I knew less than I do now (which still isn't much) I used a Centralab
/archives//html/Amps/2011-02/msg00206.html (7,009 bytes)

98. Re: [Amps] door knob capacitors (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Tue, 1 Mar 2011 11:32:27 -0600
Yeah but how do you tell a fleamarket doorknob is okay for RF. If you have a lot of do re mi and can get them new I guess it's easy, but your typical $2 doorknob in a box sitting on the pavement in a
/archives//html/Amps/2011-03/msg00011.html (8,609 bytes)

99. Re: [Amps] door knob capacitors (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Wed, 2 Mar 2011 17:21:08 -0600
Thanks Carl; mine were probably 15 KV then. I looked at the High Energy website. Those caps look great but they also look kind of pricey. Well you get what you pay for. I'm gg to give some micas I ha
/archives//html/Amps/2011-03/msg00028.html (11,548 bytes)

100. Re: [Amps] door knob capacitors (score: 1)
Author: Rob Atkinson <ranchorobbo@gmail.com>
Date: Fri, 4 Mar 2011 07:16:27 -0600
Tnx for those tricks Carl--I looked at mine and fortunately they all look okay. I guess they just are not high current RF doorknobs. I also have some 500 pF brown ones about 3/4 inch diam. and 3/4 in
/archives//html/Amps/2011-03/msg00040.html (13,805 bytes)

Current List: 81 - 100
Page: [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20]
This search system is powered by Namazu