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241. Re: [Amps] Rich is a good guy (score: 1)
Author: "Dr. David Kirkby" <david.kirkby@onetel.net>
Date: Sun, 25 Jun 2006 15:57:02 +0100
What's NFB? It if is what I think you might mean (Negative Feedback) then I believe "constructive criticism" would be a better term, rather than some 'eBayism'. I know eBay seems to be taking over th
/archives//html/Amps/2006-06/msg00372.html (9,828 bytes)

242. Re: [Amps] Rich is a good guy (score: 1)
Author: "Dr. David Kirkby" <david.kirkby@onetel.net>
Date: Sun, 25 Jun 2006 22:36:11 +0100
I responded to the moderator concerning his comments that amps is not a place for either praising or burying Caesar. I'm *not* at this point wishing to discuss any particular issue with the 3-500Z, w
/archives//html/Amps/2006-06/msg00396.html (11,093 bytes)

243. Re: [Amps] IM distortion and such (score: 1)
Author: "Dr. David Kirkby" <david.kirkby@onetel.net>
Date: Mon, 26 Jun 2006 20:48:56 +0100
You might find this article "Aromatherapy and Audiophools" http://www.g8wrb.org/useful-stuff/audiophools.pdf interesting. -- Dr. David Kirkby _______________________________________________ Amps mail
/archives//html/Amps/2006-06/msg00455.html (9,373 bytes)

244. Re: [Amps] 4CX10 000J (score: 1)
Author: "Dr. David Kirkby" <david.kirkby@onetel.net>
Date: Sun, 02 Jul 2006 16:04:33 +0100
I assume you mean 4CX10000J and not 4CX1000J. Data sheets for these tubes can be found here. http://www.g8wrb.org/data/Eimac/4CX10000D.pdf http://www.g8wrb.org/data/Eimac/4CX10000J.pdf -- Dr. David K
/archives//html/Amps/2006-07/msg00053.html (9,145 bytes)

245. [Amps] New tube data sheets online / upload youself. (score: 1)
Author: "Dr. David Kirkby" <david.kirkby@onetel.net>
Date: Sun, 09 Jul 2006 12:14:20 +0100
I have recently added some more data sheets at http://www.g8wrb.org/ The list of new ones (added in the last 60 days) is http://www.g8wrb.org/recently-added.shtml The main pages for triodes, tetrodes
/archives//html/Amps/2006-07/msg00288.html (8,308 bytes)

246. [Amps] Data sheet upload - can someone check it for me? (score: 1)
Author: "Dr. David Kirkby" <david.kirkby@onetel.net>
Date: Mon, 10 Jul 2006 02:34:26 +0100
I have written a page where people can upload data sheets which I can *later* add to http://www.g8wrb.org/ Could a few people test if for me by sending a few files and *clicking the link* to email me
/archives//html/Amps/2006-07/msg00293.html (6,975 bytes)

247. Re: [Amps] 813 amp (score: 1)
Author: "Dr. David Kirkby" <david.kirkby@onetel.net>
Date: Mon, 10 Jul 2006 03:04:52 +0100
Or for more of a challenge, fix this one: http://www.g8wrb.org/useful-stuff/ebay-auctions/bad-amplifier.pdf -- Dr. David Kirkby _______________________________________________ Amps mailing list Amps@
/archives//html/Amps/2006-07/msg00295.html (6,995 bytes)

248. Re: [Amps] Data sheet upload - can someone check it for me? (score: 1)
Author: "Dr. David Kirkby" <david.kirkby@onetel.net>
Date: Mon, 10 Jul 2006 08:23:47 +0100
Will, did you upload anything? Are you using Windows 98? I seem to have an entry for Opera 7.54 on Windows 98: 63.X.Y.Z - - [10/Jul/2006:05:29:47 +0100] "GET /php/script.js HTTP/1.1" 200 2409 "http:/
/archives//html/Amps/2006-07/msg00304.html (7,878 bytes)

249. Re: [Amps] 3CX1200D7 on eBay (score: 1)
Author: "Dr. David Kirkby" <david.kirkby@onetel.net>
Date: Tue, 11 Jul 2006 03:12:38 +0100
I sold a dead CPU on eBay once. My guess is that someone had a maintenance contract on a computer with that CPU and could swap it and get a good one from a bad one. That could be the case with that t
/archives//html/Amps/2006-07/msg00316.html (7,880 bytes)

250. [Amps] Looking for these data sheets. (score: 1)
Author: "Dr. David Kirkby" <david.kirkby@onetel.net>
Date: Wed, 12 Jul 2006 17:28:55 +0100
I'm looking to "complete" the collection of data sheets at: http://www.g8wrb.org/ currently there are about 350 power tube data sheets in PDF format. Does anyone have any of the following 70 or so Ei
/archives//html/Amps/2006-07/msg00349.html (8,132 bytes)

251. [Amps] Microsoft's MSN and http://www.g8wrb.org (score: 1)
Author: "Dr. David Kirkby" <david.kirkby@onetel.net>
Date: Sun, 23 Jul 2006 02:48:08 +0100
For anyone wanting to find data on tubes, there is quite a bit at http://www.g8wrb.org/ Be aware that if you use Microsoft's MSN's search engine you will probably not find the site in the future (pro
/archives//html/Amps/2006-07/msg00900.html (7,025 bytes)

252. Re: [Amps] making sinks black (score: 1)
Author: "Dr. David Kirkby" <david.kirkby@onetel.net>
Date: Sun, 23 Jul 2006 03:15:27 +0100
I think you will find the *radiation* from a heat sink is going to be very small indeed. It will not depend the slightest on airflow. *Convection* will be the dominant method of loosing heat, which w
/archives//html/Amps/2006-07/msg00903.html (9,455 bytes)

253. Re: [Amps] Arc distance - see for youself! (score: 1)
Author: "Dr. David Kirkby" <david.kirkby@onetel.net>
Date: Sat, 29 Jul 2006 10:16:46 +0100
Agreed. Look at this coax http://atlc.sourceforge.net/jpgs/coax2.jpg Here is a picture of the electric field around coax cable. http://atlc.sourceforge.net/jpgs/coax2.E.jpg The gap between the two co
/archives//html/Amps/2006-07/msg01275.html (13,357 bytes)

254. Re: [Amps] Arc distance - see for youself! (score: 1)
Author: "Dr. David Kirkby" <david.kirkby@onetel.net>
Date: Sat, 29 Jul 2006 10:21:59 +0100
Sorry, that was supposed to mean that areas around the small rectangle are brighter (higher electric field). -- Dr. David Kirkby _______________________________________________ Amps mailing list Amps
/archives//html/Amps/2006-07/msg01276.html (8,556 bytes)

255. Re: [Amps] EIMAC (8877 TYPE) TUBES FOR SALE (score: 1)
Author: "Dr. David Kirkby" <david.kirkby@onetel.net>
Date: Wed, 17 Jan 2007 20:35:34 +0000
If they produce more power and less drive, they can hardly be termed direct replacements can they? The 8877 are sold for industrial purposes. They are not made just for hams. Sounds if they are more
/archives//html/Amps/2007-01/msg00179.html (8,122 bytes)

256. Re: [Amps] EIMAC (8877 TYPE) TUBES FOR SALE (score: 1)
Author: "Dr. David Kirkby" <david.kirkby@onetel.net>
Date: Fri, 19 Jan 2007 22:53:58 +0000
My point is people should describe goods accurately. I have come unstuck before from someone who sold some rectifiers, claiming they were of a certain spec, but it later turns out they are not. (That
/archives//html/Amps/2007-01/msg00191.html (8,733 bytes)

257. Re: [Amps] 3CX1500A7 versus 3CPX1500 TSPA (score: 1)
Author: "Dr. David Kirkby" <david.kirkby@onetel.net>
Date: Mon, 22 Jan 2007 17:45:12 +0000
The Eimac data sheets are at: http://www.g8wrb.org/data/Eimac/3CPX1500A7.pdf http://www.g8wrb.org/data/Eimac/3CX1500A7.pdf Other tubes at http://www.g8wrb.org/triodes.php http://www.g8wrb.org/tetrode
/archives//html/Amps/2007-01/msg00226.html (9,211 bytes)

258. Re: [Amps] 3CX1500A7 versus 3CPX1500 TSPA (score: 1)
Author: "Dr. David Kirkby" <david.kirkby@onetel.net>
Date: Tue, 23 Jan 2007 19:11:09 +0000
But there are severals differences in this case. 1) Clearly the tube is *not* simply a pulsed version of the 8877. A number of characteristics are significantly different, like heater voltage and siz
/archives//html/Amps/2007-01/msg00233.html (9,686 bytes)

259. Re: [Amps] 3CX1500A7 versus 3CPX1500 TSPA (score: 1)
Author: "Dr. David Kirkby" <david.kirkby@onetel.net>
Date: Tue, 23 Jan 2007 20:15:20 +0000
Having been on the wrong end of badly described good before (rectifiers here, an oscillator on eBay, a computer from eBay), I don't think it is unreasonable for someone to put the facts, without over
/archives//html/Amps/2007-01/msg00235.html (8,064 bytes)

260. [Amps] Thanks (to whoever) for the 4CW2000A data sheet. (score: 1)
Author: "Dr. David Kirkby" <david.kirkby@onetel.net>
Date: Fri, 06 Apr 2007 22:33:58 +0100
Someone put a copy of a data sheet for the Eimac 4CW2000A data sheet on my web site, but I have no idea who. I'm guessing it might be Steve (G8GSQ) since I gather he got one of the tubes. But if not,
/archives//html/Amps/2007-04/msg00024.html (6,723 bytes)

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