Mail Archive Search: <+subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+transformers\s*$/>

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+transformers\s*$/: 123 ]

Total 123 documents matching your query.

101. Re: [Amps] transformers (score: 1): Author: R L Measures <r@somis.org>; Date: Mon, 17 Jul 2006 06:28:30 -0700; You're joking, right? R L MEASURES, AG6K. 805-386-3734 r@somis.org _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/a; /archives//html/Amps/2006-07/msg00542.html (9,452 bytes)
102. Re: [Amps] transformers (score: 1): Author: "Keith Dutson" <kdutson@sbcglobal.net>; Date: Mon, 17 Jul 2006 16:51:35 -0500; I had an L4B that put out 1700W PEP as measured by an Alpha 4510 wattmeter using 150 watts drive as read on the exciter meter. The anode voltage was about 2500 as read on the L4B meter. Also, the gri; /archives//html/Amps/2006-07/msg00545.html (8,585 bytes)
103. Re: [Amps] transformers (score: 1): Author: "Peter Voelpel" <df3kv@t-online.de>; Date: Tue, 18 Jul 2006 00:02:02 +0200; Very unlikely that measurements were correct, at 1812W input you never will get 1700W output. The plate current meter should kick to its stop then 73 Peter I had an L4B that put out 1700W PEP as meas; /archives//html/Amps/2006-07/msg00546.html (8,322 bytes)
104. Re: [Amps] transformers (score: 1): Author: Gudguyham@aol.com; Date: Mon, 17 Jul 2006 18:55:15 EDT; I can get nearly 2.5kW PEP output measured on the VFD (predecessor to the WX0B PowerMaster) out of my Henry 3K-A with a pair of 3-500ZGs and almost 4kV on the anodes with 150W+ drive. Do I do that? N; /archives//html/Amps/2006-07/msg00548.html (8,211 bytes)
105. Re: [Amps] transformers (score: 1): Author: Joe Isabella <n3ji@yahoo.com>; Date: Mon, 17 Jul 2006 17:47:13 -0700 (PDT); Power Requirements: 230VAC, 2 or 3 wire, 30A, Single Phase Input Power: 3kW PEP SSB, 1kW AM, 2kW CW/FSK Drive power required: 80-150W Output Power: 2kW PEP minimum ... Power supply has been modified; /archives//html/Amps/2006-07/msg00551.html (9,446 bytes)
106. Re: [Amps] transformers (score: 1): Author: "Gary Schafer" <garyschafer@comcast.net>; Date: Mon, 17 Jul 2006 20:37:50 -0500; That's my question Mike. Rephrased; how would you rate the power output of an SSB transmitter? What units would you express the output power in? 73 Gary K4FMX _______________________________________; /archives//html/Amps/2006-07/msg00553.html (9,921 bytes)
107. Re: [Amps] transformers (score: 1): Author: "m.ford" <k1ern@pioneerwireless.net>; Date: Mon, 17 Jul 2006 22:51:47 -0400; Watts come to mind. I think what you are trying to ask is how would I measure the total power emitted from a transmitter that is modulated by single sideband voice. Two ways come to mind. First I wou; /archives//html/Amps/2006-07/msg00555.html (11,417 bytes)
108. Re: [Amps] transformers (score: 1): Author: "Gary Schafer" <garyschafer@comcast.net>; Date: Tue, 18 Jul 2006 00:20:32 -0500; What kind of watts? You would also have to designate a given time for the measurement. Watt seconds would be the result? You would also have to know the amount of compression and the frequency conte; /archives//html/Amps/2006-07/msg00556.html (13,155 bytes)
109. Re: [Amps] transformers (score: 1): Author: R L Measures <r@somis.org>; Date: Mon, 17 Jul 2006 15:36:42 -0700; That's because to obtain 1000w from a 3-500Z using a 3kV PS, the tube must be driven into the saturation / non-linear region. To obtain 1000w of linear output from a 3-500Z, one needs a 4kV PS. ... R; /archives//html/Amps/2006-07/msg00565.html (9,337 bytes)
110. Re: [Amps] transformers (score: 1): Author: "Gary Schafer" <garyschafer@comcast.net>; Date: Tue, 18 Jul 2006 09:59:07 -0500; So you are telling us that peak power, peak envelope power and average power all have the same meaning and are one and the same? 73 Gary K4FMX _______________________________________________ Amps ma; /archives//html/Amps/2006-07/msg00575.html (14,993 bytes)
111. Re: [Amps] transformers (score: 1): Author: "Keith Dutson" <kdutson@sbcglobal.net>; Date: Tue, 18 Jul 2006 20:41:17 -0500; Peter, I found the measurement error. Those currents were for 85W drive from a different exciter, and the PEP reading was 1025. I cannot find the readings for 150. I do recall that the voltage stayed; /archives//html/Amps/2006-07/msg00610.html (9,474 bytes)
112. [Amps] Transformers (score: 1): Author: "Robert Bonner" <rbonner@qro.com>; Date: Thu, 22 Mar 2007 10:11:19 -0500; In case anybody cares, I still have those industrial transformers and chokes which would build a GREAT REPLACEMENT power supply for something like an L-4B amplifier. The transformers are big about 40; /archives//html/Amps/2007-03/msg00303.html (6,840 bytes)
113. [Amps] Transformers (score: 1): Author: Jennings <leejen@paradise.net.nz>; Date: Mon, 05 May 2008 10:38:23 +1200; With the high price of Peter Dahl transformers, I used a toroidal wound unit from Antek Inc. Their eBay store is at http://stores.ebay.com/Antek-inc The unit I use to run 2 x 3-500s is rated at 800VA; /archives//html/Amps/2008-05/msg00048.html (7,132 bytes)
114. [Amps] Transformers (score: 1): Author: Manfred Mornhinweg <mmornhin@gmx.net>; Date: Tue, 17 Jun 2008 01:28:44 +0000; Hi Dino, Wow, that's one big transformer! 3750kVA! That's several times larger than the largest pole mount distribution transformer I have ever seen! Did you really mean such high power? I wouldn't b; /archives//html/Amps/2008-06/msg00118.html (8,646 bytes)
115. Re: [Amps] Transformers (score: 1): Author: "Dino Darling" <dino@k6rix.com>; Date: Mon, 16 Jun 2008 20:35:25 -0700; Yes, I see what you mean. A 3,750,000 VA transformer is one big SOB! Good catch. Dino - K6RIX dino@k6rix.com Hi Dino, Wow, that's one big transformer! 3750kVA! That's several times larger than the la; /archives//html/Amps/2008-06/msg00120.html (9,215 bytes)
116. Re: [Amps] Transformers (score: 1): Author: "Harold Mandel" <hmandel@barantelecom.com>; Date: Tue, 17 Jun 2008 07:47:10 -0400; The transformer specified for the 4CX15,000A project is a 37.5KVA and weighs 565 pounds, dry. Hal Mandel W4HBM Hi Dino, Wow, that's one big transformer! 3750kVA! That's several times larger than the; /archives//html/Amps/2008-06/msg00123.html (9,591 bytes)
117. Re: [Amps] Transformers (score: 1): Author: <kq6i@arrl.net>; Date: Wed, 18 Jun 2008 12:51:24 -0600; Would be interesting to see a picture? Craig kq6i The transformer specified for the 4CX15,000A project is a 37.5KVA and weighs 565 pounds, dry. Hal Mandel W4HBM Hi Dino, Wow, that's one big transform; /archives//html/Amps/2008-06/msg00137.html (9,552 bytes)
118. Re: [Amps] Transformers (score: 1): Author: Bryan Swadener <bswadener@yahoo.com>; Date: Wed, 18 Jun 2008 18:11:42 -0700 (PDT); Years ago, I needed a transformer to use with "An RF Proof 30-Amp Supply" from the ARRL Handbook (http://www.dd1us.de/Downloads/an rf proof 30 amps power supply 1_0.pdf). I already photoetched the co; /archives//html/Amps/2008-06/msg00139.html (9,320 bytes)
119. Re: [Amps] Transformers (score: 1): Author: Manfred Mornhinweg <mmornhin@gmx.net>; Date: Thu, 19 Jun 2008 16:54:45 +0000; Hi Bryan, Good! Old version of the Radio Amateur's Handbook had a chapter devoted to rewinding power transformers, and so in that time many people did it. Without any good explanation, this section w; /archives//html/Amps/2008-06/msg00144.html (8,752 bytes)
120. [Amps] Transformers (score: 1): Author: "Rich Schmuke" <rdj@wildblue.net>; Date: Thu, 28 Aug 2008 14:46:26 -0500; I have a couple of filament transformers that are extra in my shack if anyone is interested. Please contact me off list. '6.3 at 10a , 5v@14a , 5v@22a , and 75lbs , 3800v at over 1 amp http://www.fli; /archives//html/Amps/2008-08/msg00149.html (6,535 bytes)

Current List: 101 - 120
Page: [1] [2] [3] [4] [5] [6] [7]