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101. Re: [Amps] mfj meters for amp (score: 1): Author: Roger <sub1@rogerhalstead.com>; Date: Mon, 25 Feb 2008 21:54:07 -0500; I can't speak for those specific meters, but I've used many plastic meters. They mounted using a "C" shaped bracket that fit over the meter terminals. there were insulated spacers to keep the metal b; /archives//html/Amps/2008-02/msg00186.html (7,809 bytes)
102. Re: [Amps] Transceiver Output Impedance (score: 1): Author: "Roger (K8RI)" <sub1@rogerhalstead.com>; Date: Sun, 09 Mar 2008 05:23:09 -0400; As the Pi or Pi-L network transforms the high plate impedance of a tube amp down to the 50 ohms. 73 Roger (K8RI) _______________________________________________ Amps mailing list Amps@contesting.com; /archives//html/Amps/2008-03/msg00089.html (9,996 bytes)
103. Re: [Amps] Yaesu Quadra (score: 1): Author: "Roger (K8RI)" <sub1@rogerhalstead.com>; Date: Sun, 09 Mar 2008 19:00:14 -0400; From my view: Probably not. I say this as these amps consist of a lot of very fast protection circuitry for over voltage, over current, over drive, a trip of reflected power, temperature, and most ch; /archives//html/Amps/2008-03/msg00105.html (9,834 bytes)
104. Re: [Amps] Transceiver Output Impedance (score: 1): Author: "Roger (K8RI)" <sub1@rogerhalstead.com>; Date: Sun, 09 Mar 2008 19:15:21 -0400; Many years ago in a different life I was in the amateur radio business when it was quite profitable. I used to loan out an HF transceiver or two to local groups for special operations, FD, or demonst; /archives//html/Amps/2008-03/msg00106.html (12,095 bytes)
105. [Amps] What is this amp set up for (score: 1): Author: "Roger (K8RI)" <sub1@rogerhalstead.com>; Date: Sat, 22 Mar 2008 19:59:06 -0400; the amp listed on http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=350038955687&ssPageName=ADME:X:AAQ:US:1123 is listed as a 2-meter amp but the specs list it as 200 MHz +/-10 Mhz. Also the output; /archives//html/Amps/2008-03/msg00210.html (7,189 bytes)
106. Re: [Amps] What is this amp set up for (score: 1): Author: "Roger (K8RI)" <sub1@rogerhalstead.com>; Date: Sat, 22 Mar 2008 21:19:21 -0400; Isn't that "modifiable" to 220? Although advertised as a 2-meter amp, "I'd guess" it's one of those that was used for plasma or industrial heating at 200 MHz that can be modified for 220. Some outfit; /archives//html/Amps/2008-03/msg00213.html (9,283 bytes)
107. Re: [Amps] What is this amp set up for (score: 1): Author: "Roger (K8RI)" <sub1@rogerhalstead.com>; Date: Sun, 23 Mar 2008 02:18:07 -0400; I would think it's too high even with a new tube. Really nice ones unmodified on 2, or 6-meters have been going for around $1400 (give or take) Look carefully at the top. It is bent in and has a circ; /archives//html/Amps/2008-03/msg00215.html (11,765 bytes)
108. Re: [Amps] mounting (UHF) RF powermodules (score: 1): Author: "Roger (K8RI)" <sub1@rogerhalstead.com>; Date: Sun, 23 Mar 2008 10:28:54 -0400; I'm not familiar with that particular transistor bu you might take a look at some of the commercial amps and see how they do it. Good Luck, Roger (K8RI) ______________________________________________; /archives//html/Amps/2008-03/msg00220.html (8,093 bytes)
109. Re: [Amps] What is this amp set up for (score: 1): Author: "Roger (K8RI)" <sub1@rogerhalstead.com>; Date: Sun, 23 Mar 2008 10:34:04 -0400; If you'd move to Michigan you'd not have a problem with expensive 432 amps. They are downright cheap over here. Of course we can only run 50 watts so that might factor in there somewhere. <:-)) OTOH; /archives//html/Amps/2008-03/msg00221.html (14,547 bytes)
110. Re: [Amps] What is this amp set up for (score: 1): Author: "Roger (K8RI)" <sub1@rogerhalstead.com>; Date: Mon, 24 Mar 2008 15:23:10 -0400; However I think you will find most of these are *rated* for pulse, but only have the 3CX800 and not the CPX version. 73 Roger (K8RI) _______________________________________________ Amps mailing list; /archives//html/Amps/2008-03/msg00243.html (19,624 bytes)
111. Re: [Amps] What is this amp set up for (score: 1): Author: "Roger (K8RI)" <sub1@rogerhalstead.com>; Date: Tue, 25 Mar 2008 02:52:04 -0400; IIRC for a while Henry listed a either a 2002A or 3002A as a legal limit amp. I think it was on 6-meters and ran a 3CPX800. It wasn't rated for pulse, but it did have take advantage of the extra cath; /archives//html/Amps/2008-03/msg00248.html (21,660 bytes)
112. Re: [Amps] Drake L7 in UK, any idea of value please? (score: 1): Author: "Roger (K8RI)" <sub1@rogerhalstead.com>; Date: Wed, 26 Mar 2008 09:14:34 -0400; Although rarely used I'd not purchase an amp that wouldn't work on 10 and I don't know any serious DXer that would either. Most, for those that know the procedures for the specific amps are easy to a; /archives//html/Amps/2008-03/msg00274.html (11,657 bytes)
113. Re: [Amps] Another ePay CB Gem.... (score: 1): Author: "Roger (K8RI)" <sub1@rogerhalstead.com>; Date: Wed, 26 Mar 2008 17:43:37 -0400; Every one has to start somewhere<:-)) 73 Roger (K8RI) _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps; /archives//html/Amps/2008-03/msg00286.html (9,252 bytes)
114. Re: [Amps] Finding HF Amps (score: 1): Author: "Roger (K8RI)" <sub1@rogerhalstead.com>; Date: Wed, 26 Mar 2008 17:50:14 -0400; Just the usual: Hit up all the swaps in your area and watch e-bay. There are usually a couple on there every month. Prices vary, but with the present economy they should be dropping a bit. Typically; /archives//html/Amps/2008-03/msg00287.html (7,901 bytes)
115. Re: [Amps] DRAKE L7 AMPLIFIERS ON EBAY>>>> (score: 1): Author: "Roger (K8RI)" <sub1@rogerhalstead.com>; Date: Wed, 26 Mar 2008 18:38:16 -0400; How about a link or item number. This is the first post I've seen referencing the L7s Was the first a digest post? I rarely see those unless logged into my ISP when they come in and before they are d; /archives//html/Amps/2008-03/msg00288.html (8,390 bytes)
116. Re: [Amps] DRAKE L7 AMPLIFIERS ON EBAY>>>> (score: 1): Author: "Roger (K8RI)" <sub1@rogerhalstead.com>; Date: Wed, 26 Mar 2008 18:39:18 -0400; I've had very good luck on there, but I haven't purchased all that much either. The problem with purchasing amps is of course the tubes. It's a double ended problem as there are those who purchase th; /archives//html/Amps/2008-03/msg00289.html (11,095 bytes)
117. Re: [Amps] DRAKE L7 AMPLIFIERS ON EBAY>>>> (score: 1): Author: "Roger (K8RI)" <sub1@rogerhalstead.com>; Date: Wed, 26 Mar 2008 21:10:58 -0400; After some searching I found the L7s. Yes, the photo is of the one, unless they both have the same S#.<:-)) With the number of items sold and reasonably good rating I'd guess they are a legit auction; /archives//html/Amps/2008-03/msg00290.html (9,874 bytes)
118. Re: [Amps] Another ePay CB Gem.... (score: 1): Author: "Roger (K8RI)" <sub1@rogerhalstead.com>; Date: Thu, 27 Mar 2008 14:21:57 -0400; We joke about these things, but my first transmitter was a pair of 6L6s running the legal limit (75W for a Novice) constructed on the corner of one of those huge steel TV chassis from the early 60's.; /archives//html/Amps/2008-03/msg00293.html (8,142 bytes)
119. Re: [Amps] Retraction with regard to the SB220 (score: 1): Author: "Roger (K8RI)" <sub1@rogerhalstead.com>; Date: Fri, 28 Mar 2008 00:26:51 -0400; You being new didn't make any mistakes. We just have some people who are too sensitive about some things. When a newbie asks a question it's not the same as an "old timer" who is well known asking th; /archives//html/Amps/2008-03/msg00303.html (10,350 bytes)
120. Re: [Amps] Refurbishing old amps (score: 1): Author: "Roger (K8RI)" <sub1@rogerhalstead.com>; Date: Fri, 28 Mar 2008 15:17:53 -0400; I'm not sure about the UK sources or equivalents. WD40 is just a penetrating oil that is mostly solvents. The LPS series penetrating oil is an equivalent. I don't like Methyl Ethyl Keytone (nasty stu; /archives//html/Amps/2008-03/msg00324.html (10,789 bytes)

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