Mail Archive Search: <+from:garyschafer@comcast.net>

Results:

References: [ +from:garyschafer@comcast.net: 654 ]

Total 654 documents matching your query.

101. Re: [Amps] DC Blocking Capacitor (score: 1): Author: Gary Schafer <garyschafer@comcast.net>; Date: Wed, 27 Apr 2005 11:57:27 -0400; Phil, Am I looking at this backwards or are you? Thanks Gary K4FMX _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/a; /archives//html/Amps/2005-04/msg00576.html (10,437 bytes)
102. Re: [Amps] Glass Chimneys (score: 1): Author: Gary Schafer <garyschafer@comcast.net>; Date: Mon, 02 May 2005 21:44:52 -0400; Lamp chimneys are not the best thing for tube chimneys. The problem is they do not have a lip that directs air to the plate seal on the top of the tube like a real tube chimney does. 73 Gary K4FMX __; /archives//html/Amps/2005-05/msg00013.html (7,320 bytes)
103. Re: [Amps] 4CX1000A for SSB?? (score: 1): Author: Gary Schafer <garyschafer@comcast.net>; Date: Tue, 03 May 2005 11:35:49 -0400; Hi Mark, That looks more useful and seems in the ball park! I wonder if you made any measurements at 1500 watts pep output? Using long sample times with speech you still need narrower bandwidths than; /archives//html/Amps/2005-05/msg00024.html (10,782 bytes)
104. Re: [Amps] Plate transformer current unknown (score: 1): Author: Gary Schafer <garyschafer@comcast.net>; Date: Tue, 03 May 2005 11:45:41 -0400; Hi Angelo, .9 is about what you get with a choke input filter. With a full wave bridge capacitor input the no load voltage will be 1.414 times. I usually use about 1.25 figure for loaded voltage when; /archives//html/Amps/2005-05/msg00025.html (13,081 bytes)
105. Re: [Amps] Gold? (score: 1): Author: Gary Schafer <garyschafer@comcast.net>; Date: Thu, 16 Jun 2005 18:04:42 -0400; It is but gold does not tarnish. 73 Gary K4FMX _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps; /archives//html/Amps/2005-06/msg00128.html (6,892 bytes)
106. Re: [Amps] ALS-500 Problem (was Mobile amps) (score: 1): Author: Gary Schafer <garyschafer@comcast.net>; Date: Sun, 24 Jul 2005 21:45:55 -0400; Will, I have often replaced such a fuse in my meters, when I did not have one close, with a fine single strand of wire from a stranded wire. Just place it in the fuse clip with the bad fuse to hold i; /archives//html/Amps/2005-07/msg00302.html (19,944 bytes)
107. Re: [Amps] Bias or Plate voltage change (score: 1): Author: Gary Schafer <garyschafer@comcast.net>; Date: Tue, 30 Aug 2005 22:12:31 -0400; The lower plate voltage was used for CW on amps that were made when the old rules only allowed 1kw DC input power. Now that the rules allow 1500 watts output power there is no need to lower the plate; /archives//html/Amps/2005-08/msg00766.html (8,413 bytes)
108. Re: [Amps] CW and High Voltage (score: 1): Author: "Gary Schafer" <garyschafer@comcast.net>; Date: Mon, 5 Sep 2005 00:20:57 -0500; Best efficiency is obtained when the plate tune and load caps are tuned for maximum output with a given amount of drive. Tuning up at maximum power with full drive as is normally done gives best effi; /archives//html/Amps/2005-09/msg00051.html (12,525 bytes)
109. Re: [Amps] CW and High Voltage (score: 1): Author: "Gary Schafer" <garyschafer@comcast.net>; Date: Mon, 5 Sep 2005 21:55:03 -0500; I define "full drive" as what is required to bring the cathode-I up to the point where linearity is on the verge of decreasing. For a young 3-500Z, this is c. 420mA. If the anode-V is c. 3000, this r; /archives//html/Amps/2005-09/msg00064.html (10,381 bytes)
110. Re: [Amps] Power cord to use when converting AL-80B to 240 volts? (score: 1): Author: Gary Schafer <garyschafer@comcast.net>; Date: Sun, 02 Oct 2005 21:35:11 -0400; It is ok to use the white as a hot lead if it is marked with tape. Should be red tape for the second hot. You can use any color wire like this as long as it is identified with tape on each end. 73 Ga; /archives//html/Amps/2005-10/msg00080.html (15,131 bytes)
111. Re: [Amps] One PS, many amps (score: 1): Author: Gary Schafer <garyschafer@comcast.net>; Date: Thu, 06 Oct 2005 17:08:18 -0400; What about if you don't light the filament on each amp? 73 Gary K4FMX _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinf; /archives//html/Amps/2005-10/msg00164.html (9,207 bytes)
112. Re: [Amps] One PS, many amps (score: 1): Author: Gary Schafer <garyschafer@comcast.net>; Date: Thu, 06 Oct 2005 21:38:58 -0400; I should have posed the question differently. What I was really asking was: What about applying high voltage to a tube when the filament is not powered up? Isn't that harmful to the tube? 73 Gary K4F; /archives//html/Amps/2005-10/msg00167.html (10,429 bytes)
113. Re: [Amps] 2006 ARRL Radio Handbook (score: 1): Author: Gary Schafer <garyschafer@comcast.net>; Date: Fri, 07 Oct 2005 21:56:36 -0400; Do they still have the rf detector built in a tube shield for a heathkit vtvm? They rode that one for 40 or so years. 73 Gary K4FMX _______________________________________________ Amps mailing list A; /archives//html/Amps/2005-10/msg00178.html (8,023 bytes)
114. Re: [Amps] Dedicated 220AC Wiring for Amps.. (score: 1): Author: "Gary Schafer" <garyschafer@comcast.net>; Date: Thu, 13 Oct 2005 21:10:52 -0500; If you had bought one less TV set and spent that money on a few ground rods and PROPERLY installed the ground system you would not have that problem. Now with your ground wire cut how do you think yo; /archives//html/Amps/2005-10/msg00339.html (11,754 bytes)
115. Re: [Amps] Dedicated 220AC Wiring for Amps.. (score: 1): Author: "Gary Schafer" <garyschafer@comcast.net>; Date: Thu, 13 Oct 2005 22:39:34 -0500; _____ I spent 30 years as a broadcast engineer. Power companies and broadcasters are paranoid about lightning hits and go to great lengths to minimize them. The power company is only concerned about; /archives//html/Amps/2005-10/msg00342.html (10,650 bytes)
116. Re: [Amps] Dedicated 220AC Wiring for Amps.. (score: 1): Author: "Gary Schafer" <garyschafer@comcast.net>; Date: Thu, 13 Oct 2005 23:29:53 -0500; The power company is only concerned about their own equipment. They care little about the customer's equipment. It is standard practice to put a strap around each tower leg joint even if there is no; /archives//html/Amps/2005-10/msg00344.html (12,518 bytes)
117. Re: [Amps] Dedicated 220AC Wiring for Amps.. (score: 1): Author: "Gary Schafer" <garyschafer@comcast.net>; Date: Fri, 14 Oct 2005 17:13:27 -0500; Hi Kirby, I don't mean to sound harsh but I kind of get tired of some of the old wives tales that are promoted about grounding. When I said "Now with your ground wire cut how do you think you are goi; /archives//html/Amps/2005-10/msg00392.html (19,463 bytes)
118. Re: [Amps] AC wiring (score: 1): Author: "Gary Schafer" <garyschafer@comcast.net>; Date: Thu, 20 Oct 2005 19:10:17 -0500; This doesn't add up. Are you telling us that both your breaker on the romex line and your main panel breaker welded shut? I do agree that fuses are more reliable than breakers. Some breakers are ver; /archives//html/Amps/2005-10/msg00513.html (10,989 bytes)
119. Re: [Amps] AC wiring (score: 1): Author: "Gary Schafer" <garyschafer@comcast.net>; Date: Fri, 21 Oct 2005 22:01:19 -0500; A friend of mine worked as an electrical engineer in an industrial plant. They checked several different manufacturers' breakers to see if they would trip as specified. Most took quite a bit of over; /archives//html/Amps/2005-10/msg00528.html (13,346 bytes)
120. Re: [Amps] 3-1000 chimney pickle Jars work great (score: 1): Author: "Gary Schafer" <garyschafer@comcast.net>; Date: Wed, 26 Oct 2005 20:55:44 -0500; Using a straight tube for a chimney does not direct enough air around the top seal of the tube. 73 Gary K4FMX _______________________________________________ Amps mailing list Amps@contesting.com htt; /archives//html/Amps/2005-10/msg00614.html (9,696 bytes)

Current List: 101 - 120
Page: [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20]