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Total 158 documents matching your query.

81. Re: [Amps] MLA-2500 (score: 1)
Author: "EP Swynar" <gswynar@durham.net>
Date: Fri, 25 Jan 2008 14:25:36 -0500
"...BTW, I have 2 MLA-2500's here and am a bit familiar with the design..." ** Hi Carl, A question: further to my earlier post, just how many sections does the variable loading capacitor in that spec
/archives//html/Amps/2008-01/msg00186.html (8,564 bytes)

82. Re: [Amps] MLA-2500 (score: 1)
Author: "EP Swynar" <gswynar@durham.net>
Date: Fri, 25 Jan 2008 15:34:31 -0500
"...One, 800pf total. Its the same cap used in later Heath, Amp Supply, Ameritron and others..." ** There goes my theory about switching-in / out extra sections, as may be required, dependent upon th
/archives//html/Amps/2008-01/msg00189.html (8,730 bytes)

83. [Amps] Dentron MLA-2500 & BAMA (score: 1)
Author: "EP Swynar" <gswynar@durham.net>
Date: Fri, 25 Jan 2008 15:41:47 -0500
Well, so much for trying to download anything relevant to the amplifier from BAMA... Is it just me, or does that site EVER work...?! ~73~ Eddy VE3CUI - VE3XZ _________________________________________
/archives//html/Amps/2008-01/msg00190.html (7,152 bytes)

84. Re: [Amps] Dentron MLA-2500 & BAMA (score: 1)
Author: "EP Swynar" <gswynar@durham.net>
Date: Fri, 25 Jan 2008 19:28:19 -0500
Hi Steve, The error message has words to the effect of, "...Adobe reader can not open file because it has been corrupted / improperly decoded..." It wins, I give up...! ~73~ Eddy VE3CUI - VE3XZ ** --
/archives//html/Amps/2008-01/msg00195.html (9,347 bytes)

85. Re: [Amps] Painting xfmrs (score: 1)
Author: "EP Swynar" <gswynar@durham.net>
Date: Mon, 5 May 2008 16:25:53 -0400
Hi Jeff, I believe the Bill Orr series of Radio Handbooks espoused painting filament transformers that were to be located INSIDE THE AMPLIFIER ENCLOSURE a flat white...this was to reduce some ill-eff
/archives//html/Amps/2008-05/msg00053.html (8,861 bytes)

86. Re: [Amps] 813's shot noise? (score: 1)
Author: "EP Swynar" <gswynar@durham.net>
Date: Thu, 12 Jun 2008 13:03:26 -0400
Hi Jerome, Alas & alak, my HB 2x813 amplifier here was also cursed with that dreaded "Ker-CHUNK!!!" from the robust T/R relay I employed whenever I'd start / stop transmitting... This past autumn I a
/archives//html/Amps/2008-06/msg00100.html (10,607 bytes)

87. Re: [Amps] Hammond Plate Transformer (score: 1)
Author: "EP Swynar" <gswynar@durham.net>
Date: Sat, 12 Jul 2008 15:46:12 -0400
Hi Dennis, I have the August 1956 issue of the Hammond transformer catalogue here in front of me, & there are NO "model 2740" plate transformers listed in it at all... What they DO show are "X" mount
/archives//html/Amps/2008-07/msg00119.html (8,374 bytes)

88. Re: [Amps] Building an Amp, Selecting a Tube (score: 1)
Author: "EP Swynar" <gswynar@durham.net>
Date: Sun, 27 Jul 2008 09:39:32 -0400
Hi Carl, Repeated reference has been made on this reflector regarding so-called "...medical pull" tubes... How does one go about getting one's hot little pinkies wrapped around one of these rascals..
/archives//html/Amps/2008-07/msg00290.html (13,004 bytes)

89. Re: [Amps] Roller Inductor info (score: 1)
Author: "EP Swynar" <gswynar@durham.net>
Date: Mon, 28 Jul 2008 12:54:38 -0400
Hi Mike, That's an easy one to answer, IF you have most any copy of THE RADIO AMATEUR'S HANDBOOK in front of you... To whit, wire size #14 in a coil will handle: -500-watts of input on 1.8- & 3.5-MHz
/archives//html/Amps/2008-07/msg00335.html (8,218 bytes)

90. [Amps] So-Called Utility "Smart Meters" (score: 1)
Author: "EP Swynar" <gswynar@durham.net>
Date: Tue, 12 Aug 2008 12:01:16 -0400
Good Morning All, The good folks here at the Ontario Hydro generating outfit (or WHATEVER it is that they might call themselves this week) have elected to install so-called "smart meters", in place o
/archives//html/Amps/2008-08/msg00065.html (8,710 bytes)

91. Re: [Amps] So-Called Utility "Smart Meters" (score: 1)
Author: "EP Swynar" <gswynar@durham.net>
Date: Tue, 12 Aug 2008 16:25:46 -0400
Hi All, Many thanks for the overwhelming response to my query re. RFI to / from utility "smart meters"... Consensus has it that, unless I operate in the 33 cm band, there should be no problems with H
/archives//html/Amps/2008-08/msg00075.html (8,264 bytes)

92. Re: [Amps] illegal amps? (score: 1)
Author: "EP Swynar" <gswynar@durham.net>
Date: Fri, 29 Aug 2008 11:31:55 -0400
Hi Jay, Don't knock 'em! Instead, get in on some of the action & get yourself a good that might be readily converted to legit Ham radio use. That's what I did years ago with a Palomar-150...what a gr
/archives//html/Amps/2008-08/msg00156.html (8,108 bytes)

93. Re: [Amps] illegal amps? (score: 1)
Author: "EP Swynar" <gswynar@durham.net>
Date: Fri, 29 Aug 2008 13:41:44 -0400
Hi Ray, A good point, well made... Another thing I discovered -- after I first fired-up the Palomar on 10-meters & called CQ -- was that the doggone thing sounded just AWFUL at the other end. All I d
/archives//html/Amps/2008-08/msg00163.html (9,064 bytes)

94. Re: [Amps] Cleaning Roller Inductors (score: 1)
Author: "EP Swynar" <gswynar@durham.net>
Date: Mon, 1 Sep 2008 07:40:38 -0400
Hi John, I use a soft cloth soaked in isopropyl rubbing alcohol to wipe clean all of my roller inductors (employ one ach in my transmatch, as well as me HB linear amplifier)... I hold the dampened cl
/archives//html/Amps/2008-09/msg00000.html (7,365 bytes)

95. Re: [Amps] 1/4" shaft connectors (score: 1)
Author: "EP Swynar" <gswynar@durham.net>
Date: Fri, 26 Sep 2008 18:07:24 -0400
Hi Jim, I just clicked onto that site you mentioned, & looked-up their shaft couplers... Do I understand correctly that their most INEXPENSIVE coupler costs a whopping $9.30...EACH?! If that's correc
/archives//html/Amps/2008-09/msg00216.html (9,640 bytes)

96. Re: [Amps] 1/4" shaft connectors (score: 1)
Author: "EP Swynar" <gswynar@durham.net>
Date: Fri, 26 Sep 2008 22:12:07 -0400
Relax Jim, You didn't do ME the favour, it was for someone else...you see, I wasn't the guy asking -- but since you made the post public, I took a look at it. Is there a problem with that? Besides, Y
/archives//html/Amps/2008-09/msg00222.html (12,931 bytes)

97. [Amps] High-Voltage Electrolytic Capacitors (score: 1)
Author: "EP Swynar" <gswynar@durham.net>
Date: Wed, 22 Oct 2008 13:59:21 -0400
Good Day All, I blew a fuse in my 2x813 HB kilowatt the other day, due to a shorted electrolytic capacitor in the filter "string" of the 2500-volts B+ p.s. (the darn things are some 30 years old alre
/archives//html/Amps/2008-10/msg00093.html (7,800 bytes)

98. [Amps] Fw: Strange Loading Issue (score: 1)
Author: "EP Swynar" <gswynar@durham.net>
Date: Thu, 20 Nov 2008 10:19:51 -0500
Hi Lee, What does it do on the other bands...? It almost sounds as if the amplifier is being loaded strictly by paralleled fixed padder caps -- like the lead to the variable cap has somehow been brok
/archives//html/Amps/2008-11/msg00193.html (9,293 bytes)

99. [Amps] Linear Amplifiers (score: 1)
Author: "EP Swynar" <gswynar@durham.net>
Date: Sun, 30 Nov 2008 12:39:31 -0500
Good Day All, I am continually amazed & perplexed at how some Hams will readily dole out HUGE $$$ for amplifiers like this (see earlier eBay reference item 220304468622), when they can just as easily
/archives//html/Amps/2008-11/msg00261.html (7,763 bytes)

100. Re: [Amps] Linear Amplifiers (score: 1)
Author: "EP Swynar" <gswynar@durham.net>
Date: Mon, 1 Dec 2008 08:43:23 -0500
"...Those are a LOT of skills for anyone who has not been learning and excercising all of them pretty much constantly over the last 30 yrs or so. Unfortunately, many of us have spent those valuable y
/archives//html/Amps/2008-12/msg00006.html (8,780 bytes)

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