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141. Re: [Amps] cap sizes (score: 1)
Author: "Edward Swynar" <gswynar@durham.net>
Date: Mon, 8 Feb 2010 06:50:18 -0500
"...I was surprised to see the small size of the same value caps .... the originals in the DTR-2000 Dentron were 7 inches long and inch in dia. The new ones (in 2009) were same size around, but about
/archives//html/Amps/2010-02/msg00226.html (7,865 bytes)

142. Re: [Amps] cap sizes (score: 1)
Author: "Edward Swynar" <gswynar@durham.net>
Date: Mon, 8 Feb 2010 07:07:00 -0500
Hi Peter, I wasn't aware of that--thanks for sharing. ~73!~ de Eddy VE3CUI - VE3XZ ** the The _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contes
/archives//html/Amps/2010-02/msg00229.html (10,827 bytes)

143. [Amps] "CQ" Magaizne Back Issues (score: 1)
Author: "Edward Swynar" <gswynar@durham.net>
Date: Tue, 9 Feb 2010 15:04:46 -0500
Good Day All, I wonder if anyone reading this might have a good collection of backissues of "CQ" magazine...? I'd LOVE to get a copy (scanned, or otherwise) of a piece penned by Lew McCoy (W1ICP) ent
/archives//html/Amps/2010-02/msg00286.html (6,981 bytes)

144. Re: [Amps] "CQ" Magaizne Back Issues (score: 1)
Author: "Edward Swynar" <gswynar@durham.net>
Date: Wed, 10 Feb 2010 08:07:40 -0500
Hi Again All, Per my previous posting (see below), I've since learned that the issue that I'm interested in is the DECEMBER 1985 one. "CQ" magazine, i.e. "The Silver City Kilowatt", by the venerable
/archives//html/Amps/2010-02/msg00292.html (8,468 bytes)

145. Re: [Amps] 3000/5000 (score: 1)
Author: "Edward Swynar" <gswynar@durham.net>
Date: Wed, 17 Feb 2010 15:08:47 -0500
"...Can you imagine building an all band HF amp and what it'd take for a tank circuit and band switch?" ** Hi Don, et al, In truth, it's really not all that difficult IF one incorporates a rotary ind
/archives//html/Amps/2010-02/msg00496.html (9,565 bytes)

146. Re: [Amps] soft start, how to determine if needed? (score: 1)
Author: "Edward Swynar" <gswynar@durham.net>
Date: Wed, 24 Feb 2010 07:07:34 -0500
Hi Guys, FWIW, I had to re-build my rectifier stack at least twice before I finally incorporated a soft-start / step-start scheme in the primary of my B+ transformer... The p.s. is a full-wave rectif
/archives//html/Amps/2010-02/msg00716.html (11,128 bytes)

147. Re: [Amps] Building 833 Amplifier. Hints and Suggestions? (score: 1)
Author: "Edward Swynar" <gswynar@durham.net>
Date: Tue, 16 Mar 2010 16:25:54 -0500
Hi Greg, The ARRL's "RadioAmateur's Handbook" for 1980 (I believe) features just such an amplifier--in fact, the 833A in it actually graces the front cover...! I, too, have an 833A that was recently
/archives//html/Amps/2010-03/msg00310.html (12,494 bytes)

148. Re: [Amps] Good engineering (score: 1)
Author: "Edward Swynar" <gswynar@durham.net>
Date: Wed, 24 Mar 2010 09:30:57 -0500
"...A good engineer will just meet the requirements without going overboard..." ** I was employed by one of the "Big Three" domestic automakers for some 34 years, and I saw, first-hand, the "de-volut
/archives//html/Amps/2010-03/msg00549.html (9,033 bytes)

149. Re: [Amps] Good engineering (score: 1)
Author: "Edward Swynar" <gswynar@durham.net>
Date: Wed, 24 Mar 2010 11:34:11 -0500
"...Sounds like the engineer who decided something was "just enough" was wrong. Making good decisions like that separates the good engineers from the not so good..." ** Hi Bill, Well, in truth, such
/archives//html/Amps/2010-03/msg00557.html (9,685 bytes)

150. Re: [Amps] Good engineering (score: 1)
Author: "Edward Swynar" <gswynar@durham.net>
Date: Wed, 24 Mar 2010 14:25:56 -0500
"...What he found at issue was that instructor's contention that good engineering was to design so that the item would last for the length of the warranty plus one day..." ** Hi Gary, What an attitud
/archives//html/Amps/2010-03/msg00563.html (8,563 bytes)

151. Re: [Amps] 'Good engineering' (score: 1)
Author: "Edward Swynar" <gswynar@durham.net>
Date: Sat, 27 Mar 2010 06:46:01 -0500
"...They are much safer because of eccentrics like Jim wanted to push the envelope and go one better..." ** Hi Alek, This observation is off-topic, surely, but it sorta ties-in with what you're sayin
/archives//html/Amps/2010-03/msg00681.html (9,574 bytes)

152. Re: [Amps] Good engineering (score: 1)
Author: "Edward Swynar" <gswynar@durham.net>
Date: Sun, 28 Mar 2010 07:21:09 -0500
"...I hate to mention this, but as you mentioned it, many airframes are life cycle limited. So many takeoffs and landings and it's rebuild time. Aircraft engines are basically life limited to either
/archives//html/Amps/2010-03/msg00710.html (9,679 bytes)

153. Re: [Amps] Good engineering (score: 1)
Author: "Edward Swynar" <gswynar@durham.net>
Date: Tue, 30 Mar 2010 07:38:23 -0500
"...These are man-rated systems chock full of electronics, and EMC testing damn well ought to be mandatory." ** Hi Mike, This will doubtlessly be taken as my being biased/prejudiced by any & all who
/archives//html/Amps/2010-03/msg00854.html (9,531 bytes)

154. Re: [Amps] 813's.. Parasitic suppressor's (score: 1)
Author: "Edward Swynar" <gswynar@durham.net>
Date: Mon, 12 Apr 2010 07:17:19 -0400
Hi Jim, So VERY many guys who are running 813s like that, now being "...outted"!!! My, my... These days, it seems, NOBODY wants to get caught admitting that they run these venerable old jugs. Good fo
/archives//html/Amps/2010-04/msg00413.html (8,680 bytes)

155. Re: [Amps] 813's.. Parasitic suppressor's (score: 1)
Author: "Edward Swynar" <gswynar@durham.net>
Date: Mon, 12 Apr 2010 12:00:46 -0400
Hi Jim, What I meant to say was simply this: in ye olden golden daze, times were tough & money tight--so Hams had to use their smarts & innovate / modify / save money... But these days, credit is so
/archives//html/Amps/2010-04/msg00426.html (12,878 bytes)

156. Re: [Amps] Labeling panels (score: 1)
Author: "Edward Swynar" <gswynar@durham.net>
Date: Thu, 19 Aug 2010 08:28:03 -0400
"...What's a good way to label an unpainted aluminum panel?" ** Hi Vic, Keep it simple, permanent, and CHEAP, & do what I do here for a professional-looking label... Specifically, I buy 1/4" tall vin
/archives//html/Amps/2010-08/msg00318.html (8,030 bytes)

157. Re: [Amps] triode or tetrode (score: 1)
Author: "Edward Swynar" <gswynar@durham.net>
Date: Fri, 27 Aug 2010 18:22:16 -0400
Hi Guys, When building an amplifier--or ANY HB project, for that matter!--I always strive (where possible) to leave extra room here & there, both on the chassis top & the front panel, for "...future
/archives//html/Amps/2010-08/msg00411.html (12,372 bytes)

158. Re: [Amps] Building a Mock Up (score: 1)
Author: "Edward Swynar" <gswynar@durham.net>
Date: Wed, 17 Nov 2010 13:08:02 -0500
Hi Lee, I don't use cardboard, but I do make a drawing on an 8" x 10" sheet of paper showing all the parts, socket orientation, etc., of my HB creations... If you err at the drawing board, t'is far &
/archives//html/Amps/2010-11/msg00306.html (8,807 bytes)

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