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Total 158 documents matching your query.

101. Re: [Amps] Linear Amps (score: 1)
Author: "EP Swynar" <gswynar@durham.net>
Date: Mon, 1 Dec 2008 13:58:33 -0500
"...I keep telling myself I will complete one more small one, have most of the parts ready." ** Hi Rich, I was "...mentally musing" in an off-site e-mail with another Ham about the fact that Ham Radi
/archives//html/Amps/2008-12/msg00018.html (8,825 bytes)

102. Re: [Amps] Linear Amps (score: 1)
Author: "EP Swynar" <gswynar@durham.net>
Date: Tue, 2 Dec 2008 09:12:36 -0500
"...I have most copies of HR. Do you know which editions? I can scan it and make it available..." ** Good Morning Dave, I think that'd be a superlative idea...! For your benefit -- as well as for tho
/archives//html/Amps/2008-12/msg00033.html (8,176 bytes)

103. Re: [Amps] Linear Amps (score: 1)
Author: "EP Swynar" <gswynar@durham.net>
Date: Tue, 2 Dec 2008 15:44:00 -0500
Hi Tom, Who said that non-homebrewers weren't real Hams...? All I was trying to convey was the reality that those who have never tried homebrewing may be missing a wonderful ingredient that helps mak
/archives//html/Amps/2008-12/msg00044.html (11,370 bytes)

104. Re: [Amps] 4-1000A Featured [well... seen] on National Television (score: 1)
Author: "EP Swynar" <gswynar@durham.net>
Date: Sat, 13 Dec 2008 13:20:18 -0500
Hi Pat, I saw the very same thing, and pointed it out to my XYL... Maybe he really is "...one of us", Hi Hi. ~74~ Eddy VE3CUI - VE3XZ ** -- Original Message -- From: "Pat Barthelow" <aa6eg@hotmail.co
/archives//html/Amps/2008-12/msg00216.html (8,986 bytes)

105. Re: [Amps] High voltage wire (score: 1)
Author: "EP Swynar" <gswynar@durham.net>
Date: Tue, 23 Dec 2008 10:41:46 -0500
Hi Jim, I agree 101% -- that's all I ever do here with my HV B+ leads (maximum 2800-VDC)... I even dispense with the Millen HV connectors, & instead, use GOOD QUALITY PL-259 connectors / SO-239 recep
/archives//html/Amps/2008-12/msg00304.html (8,861 bytes)

106. Re: [Amps] High voltage wire (score: 1)
Author: "EP Swynar" <gswynar@durham.net>
Date: Thu, 25 Dec 2008 11:09:19 -0500
Hi Ken, That is an EXCELLENT tip...! What I do here whenever I work on my amp / p.s. is to install / remove each of the cables one at a time, and then trace the ends of the cable I'm working on befor
/archives//html/Amps/2008-12/msg00328.html (9,661 bytes)

107. Re: [Amps] Shaft Misalignment Solutions (score: 1)
Author: "Eddy Swynar" <gswynar@durham.net>
Date: Fri, 23 Jan 2009 07:38:50 -0500
Hi Bob, I had a similar situation here some years ago with a HB VFO that I was working on: I had to control TWO variable capacitors with only ONE shaft / knob! I ended-up going to the local automotiv
/archives//html/Amps/2009-01/msg00267.html (10,738 bytes)

108. [Amps] Plate Choke Values (score: 1)
Author: "Eddy Swynar" <gswynar@durham.net>
Date: Thu, 5 Feb 2009 07:35:24 -0500
Good Morning All, Am I missing something here...? Extensive research here into years & years of ARRL HANDBOOKS, Bill Orr HANDBOOKS, and the internet have shed precious little light in the matter of o
/archives//html/Amps/2009-02/msg00105.html (7,436 bytes)

109. Re: [Amps] Seeking sockets for 851 tubes (score: 1)
Author: "Edward Swynar" <gswynar@durham.net>
Date: Mon, 9 Feb 2009 14:39:32 -0500
Hi Joe, Those are VERY rare rascals, indeed -- even by eBay standards... I've been told that with a bit of mechanical savvy, one CAN homebrew these things with just a bit of effort...but I certainly
/archives//html/Amps/2009-02/msg00247.html (7,741 bytes)

110. Re: [Amps] Roller Inductor specs (score: 1)
Author: "Edward Swynar" <gswynar@durham.net>
Date: Sun, 15 Feb 2009 14:13:11 -0500
Hi Dennis, That's a new one on me here, and I've seen my share over the years, too, certainly...! It looks like a really good buy: although he seller doesn't specifically show it, as such, it APPEARS
/archives//html/Amps/2009-02/msg00478.html (8,767 bytes)

111. Re: [Amps] best tuner (score: 1)
Author: "Edward Swynar" <gswynar@durham.net>
Date: Sun, 15 Feb 2009 21:06:31 -0500
Hi Sam, They say that the SPC transmatch ("Series Parallel Capacitance") is a tough one to beat...I see it in newer versions of the ARRL HANDBOOK. In fact, just this past week I built another, smalle
/archives//html/Amps/2009-02/msg00487.html (8,634 bytes)

112. Re: [Amps] best tuner (score: 1)
Author: "Edward Swynar" <gswynar@durham.net>
Date: Mon, 16 Feb 2009 12:31:49 -0500
Good Day All, Just as soon as the nicad batteries in my digital camera here might charge up(!), I'll post a few shots of the S.P.C. transmatch that I built here last week, using nothing more than sur
/archives//html/Amps/2009-02/msg00500.html (10,676 bytes)

113. Re: [Amps] best tuner (score: 1)
Author: "Edward Swynar" <gswynar@durham.net>
Date: Mon, 16 Feb 2009 15:33:36 -0500
Good Day ALL Yet Again, If anyone wishes to see the fruits of my labour here in the matter of a HB transmatch, feel free to click onto this website: http://www.flickr.com/photos/15888272@N05/?saved=1
/archives//html/Amps/2009-02/msg00515.html (7,658 bytes)

114. Re: [Amps] best atu (score: 1)
Author: "Edward Swynar" <gswynar@durham.net>
Date: Mon, 16 Feb 2009 18:28:15 -0500
Hi Allan, Well, an ATU (properly designed) will help keep your harmonics / spurious signals from being radiated -- AND it'll add front-end selectivity to your receiver, for starters... "...To each hi
/archives//html/Amps/2009-02/msg00528.html (8,105 bytes)

115. [Amps] Homebrewed "SPC" Transmatch (score: 1)
Author: "Edward Swynar" <gswynar@durham.net>
Date: Tue, 17 Feb 2009 08:24:08 -0500
"...Looks nice Ed but that empty area sure could use the diagram of the tuner. Not all of us are in a position to get it..." ** Hi Again Bob, Et Al, If you click back onto my Flickr website again, yo
/archives//html/Amps/2009-02/msg00533.html (8,155 bytes)

116. [Amps] Minimum Value of RF Plate Chokes (score: 1)
Author: "Edward Swynar" <gswynar@durham.net>
Date: Thu, 19 Feb 2009 15:00:41 -0500
Good Day All, Many thanks to all who responded to me re. my recent query as to the "...black magic factor"(!) in determining the proper minimum value of plate chokes in linear amplifiers... I was for
/archives//html/Amps/2009-02/msg00574.html (7,451 bytes)

117. Re: [Amps] Question for All Amp Builders... (score: 1)
Author: "Edward Swynar" <gswynar@durham.net>
Date: Fri, 20 Feb 2009 07:15:33 -0500
Hi Scott, It sounds to me like you desperately need to increase the collection of reference books you have there in your Ham radio library...! Hi Hi. ANY ARRL Handbook, or Bill Orr Handbook, has that
/archives//html/Amps/2009-02/msg00584.html (8,775 bytes)

118. Re: [Amps] Doorknob quality (score: 1)
Author: "Edward Swynar" <gswynar@durham.net>
Date: Sun, 22 Feb 2009 08:36:36 -0500
"...When using doorknob capacitors for RF tuning circuits, is there something special I should aware of?" ** Hi Evert, Do not assume that merely because a capacitor like this may be rated for some 20
/archives//html/Amps/2009-02/msg00643.html (8,338 bytes)

119. [Amps] Final Pi Tank Component Values (score: 1)
Author: "Edward Swynar" <gswynar@durham.net>
Date: Mon, 23 Feb 2009 13:50:17 -0500
Good Day All, The other day, someone asked about the whys & the wherefores of those specific component values as are used in final RF amplifier pi tank circuits... Here's a really quick & easy site t
/archives//html/Amps/2009-02/msg00664.html (6,796 bytes)

120. Re: [Amps] Minimum Value of RF Plate Chokes (score: 1)
Author: "Edward Swynar" <gswynar@durham.net>
Date: Thu, 26 Feb 2009 11:06:58 -0500
"...Seems that with a small choke (small inductance for the frequency) the choke is actually tuned to resonance when its reactance is a low value compared to load impedance. If the choke is too small
/archives//html/Amps/2009-02/msg00681.html (8,511 bytes)

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