Mail Archive Search: <+from:sub1@rogerhalstead.com>

Results:

References: [ +from:sub1@rogerhalstead.com: 1109 ]

Total 1109 documents matching your query.

161. Re: [Amps] Damage? (score: 1): Author: "Roger (K8RI)" <sub1@rogerhalstead.com>; Date: Fri, 25 Jul 2008 16:36:41 -0400; There are only a few that are 100% any where, so that narrows the make and model down pretty close<:-)) As I said in an earlier post we have one of those, rather than the 50 or 60% out of Detroit or; /archives//html/Amps/2008-07/msg00269.html (10,613 bytes)
162. Re: [Amps] Tube sources (score: 1): Author: "Roger (K8RI)" <sub1@rogerhalstead.com>; Date: Fri, 25 Jul 2008 21:30:37 -0400; Although I don't think they have the full line they were producing. I sure would like a couple of 4CX-1600Bs 73 Roger (K8RI) _______________________________________________ Amps mailing list Amps@con; /archives//html/Amps/2008-07/msg00275.html (8,278 bytes)
163. [Amps] Building an Amp, Selecting a Tube (score: 1): Author: "Roger (K8RI)" <sub1@rogerhalstead.com>; Date: Sat, 26 Jul 2008 22:20:16 -0400; I've looked over the present offerings for tubes (either one or two in parallel) to comfortably run the legal limit. There are a number of "out of production" Russian tubes that look attractive and a; /archives//html/Amps/2008-07/msg00286.html (9,565 bytes)
164. Re: [Amps] Damage? (score: 1): Author: "Roger (K8RI)" <sub1@rogerhalstead.com>; Date: Sun, 27 Jul 2008 19:29:55 -0400; Just South of Alma MI, there is a broadcast array situated between Old US27 and the expressway. IOW it is *close* to both (I could throw a rock far enough to hit the closest and I am not a good pitch; /archives//html/Amps/2008-07/msg00299.html (8,580 bytes)
165. Re: [Amps] Building an Amp, Selecting a Tube (score: 1): Author: "Roger (K8RI)" <sub1@rogerhalstead.com>; Date: Sun, 27 Jul 2008 22:13:25 -0400; Oh, yah...<:-)) <sigh> about 15 to 20 years ago I cleaned out a bunch of stuff as I was so busy and seldom on the air. I had three, new 4CX1500Bs. The A version is the real current hog at 38.5 amps (; /archives//html/Amps/2008-07/msg00308.html (12,349 bytes)
166. Re: [Amps] Thoughts on half-wave dipole (score: 1): Author: "Roger (K8RI)" <sub1@rogerhalstead.com>; Date: Sun, 27 Jul 2008 23:11:34 -0400; After I quit laughing (I dug my copy out and checked page 262) I'd have to add the math on the previous two pages before getting to the general case, would scare off the average ham and I mean no dis; /archives//html/Amps/2008-07/msg00309.html (8,314 bytes)
167. Re: [Amps] Damage? (score: 1): Author: "Roger (K8RI)" <sub1@rogerhalstead.com>; Date: Fri, 25 Jul 2008 15:26:26 -0400; And we all start running the legal limit on 2.3 Gig mobile, or they drive by an EME station?<:-)) There have been problems with RF *from* cars (The early V6 in the Cab Forward Chrysler products on 14; /archives//html/Amps/2008-07/msg00316.html (10,858 bytes)
168. Re: [Amps] Damage? (score: 1): Author: "Roger (K8RI)" <sub1@rogerhalstead.com>; Date: Mon, 28 Jul 2008 19:48:36 -0400; And it may have nothing to do with those stations. There was a recent incident listed in the ARRL newsletter where shoppers found there remotes wouldn't work in a mall parking lot. Turned out to be r; /archives//html/Amps/2008-07/msg00345.html (9,622 bytes)
169. Re: [Amps] Wire (score: 1): Author: "Roger (K8RI)" <sub1@rogerhalstead.com>; Date: Mon, 28 Jul 2008 20:54:09 -0400; Then you take a look in an *older* aircraft. Many make what's behind my computers and ham equipment look like a work of art. They also have a great color coding system. "White"! I should take a photo; /archives//html/Amps/2008-07/msg00346.html (8,583 bytes)
170. Re: [Amps] Solid State Relays in Plate Supply Primary (score: 1): Author: "Roger (K8RI)" <sub1@rogerhalstead.com>; Date: Mon, 04 Aug 2008 02:01:20 -0400; I've used many of them in industrial applications with outstanding results for reliability and function. How they'd work around RF I don't know. 73 Roger (K8RI) ______________________________________; /archives//html/Amps/2008-08/msg00016.html (7,791 bytes)
171. Re: [Amps] So-Called Utility "Smart Meters" (score: 1): Author: "Roger (K8RI)" <sub1@rogerhalstead.com>; Date: Wed, 13 Aug 2008 23:48:06 -0400; Please don't cross post between groups. The so called "smart meters" will eventually be necessary to run the grid to capacity along with the use of "smart appliances", but for the time being companie; /archives//html/Amps/2008-08/msg00089.html (10,751 bytes)
172. Re: [Amps] So-Called Utility "Smart Meters" (score: 1): Author: "Roger (K8RI)" <sub1@rogerhalstead.com>; Date: Thu, 14 Aug 2008 17:40:04 -0400; "Smart meters" and remote reading meters aren't quite the same although the smart ones can be read remotely. Typically the smart ones can be read from the office, or some central location if the util; /archives//html/Amps/2008-08/msg00100.html (10,522 bytes)
173. Re: [Amps] Silicone Rubber Sheets (score: 1): Author: "Roger" <sub1@rogerhalstead.com>; Date: Wed, 27 Aug 2008 22:08:36 -0400; That's pretty close to what Alpha uses. It's at least an 1/8" and might be 3/16". Mine is out in the shop and I'm too lazy to go out, open up the cabinet and measure it. <:-)) 73 Roger (K8RI) ______; /archives//html/Amps/2008-08/msg00145.html (9,096 bytes)
174. Re: [Amps] Ameritron Amps? (score: 1): Author: "Roger (K8RI)" <sub1@rogerhalstead.com>; Date: Sat, 30 Aug 2008 20:26:25 -0400; The older manual I read says it takes 130 watts drive for the legal limit and I don't have anything that goes than high. That thing is rugged compared to the PL172/8295A in my old HT33B <:-)) Of cour; /archives//html/Amps/2008-08/msg00179.html (7,761 bytes)
175. Re: [Amps] Ameritron (score: 1): Author: "Roger (K8RI)" <sub1@rogerhalstead.com>; Date: Sat, 30 Aug 2008 23:17:18 -0400; Like Carl, my question is, why send it back? You have far more patience than I. Do you know for sure they received it? 73 Roger (K8RI) _______________________________________________ Amps mailing lis; /archives//html/Amps/2008-08/msg00184.html (7,415 bytes)
176. Re: [Amps] SELL: PL-172/8295a (score: 1): Author: "Roger (K8RI)" <sub1@rogerhalstead.com>; Date: Mon, 08 Sep 2008 19:59:35 -0400; There are two versions of this tube. One is Metal ceramic and the other is metal glass. The ceramic version is about a 1/4 to 1/2" taller and is the more desirable of the two. Values vary widely from; /archives//html/Amps/2008-09/msg00057.html (8,037 bytes)
177. Re: [Amps] 3-500Z glitch resistor (score: 1): Author: "Roger (K8RI)" <sub1@rogerhalstead.com>; Date: Tue, 16 Sep 2008 14:10:14 -0400; I really don't like the thought of a piece of wire in there long enough to extinguish the arc, or to coat things with vaporized copper. OTOH using regular fuses is inviting disaster. Most are rated n; /archives//html/Amps/2008-09/msg00156.html (10,406 bytes)
178. Re: [Amps] 3-500Z glitch resistor (score: 1): Author: "Roger (K8RI)" <sub1@rogerhalstead.com>; Date: Tue, 16 Sep 2008 17:27:06 -0400; Now that makes sense. Basically a HV fuse is just a tube with a wire filled with sand. If glass just make the diameter large enough to handle the pressure. 73 Roger (K8RI) ___________________________; /archives//html/Amps/2008-09/msg00158.html (11,971 bytes)
179. Re: [Amps] 3-500Z glitch resistor (score: 1): Author: "Roger (K8RI)" <sub1@rogerhalstead.com>; Date: Wed, 17 Sep 2008 01:24:17 -0400; There are many things that can be used for the glass tube, even cutting off the end of a test tube. Glass tubing is also available at drug stores. I'll have to pass on the cigar though. I quite over; /archives//html/Amps/2008-09/msg00167.html (10,072 bytes)
180. Re: [Amps] 3-500Z glitch resistor (score: 1): Author: "Roger (K8RI)" <sub1@rogerhalstead.com>; Date: Wed, 17 Sep 2008 13:11:05 -0400; Originally the "crowbar" was just that. A piece of metal that shorted the HV to ground if any one opened the cabinet with the power on. Opening the cabinet closed a mechanical switch (usually somethi; /archives//html/Amps/2008-09/msg00175.html (8,846 bytes)

Current List: 161 - 180
Page: [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20]