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References: [ +from:gswynar@durham.net: 158 ]

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121. [Amps] Minimum Value of RF Plate Chokes (score: 1): Author: "Edward Swynar" <gswynar@durham.net>; Date: Thu, 26 Feb 2009 13:12:12 -0500; Many thanks, Gary & Paul, for your very informative feedback to my original head-scratching here, Hi Hi. Well, maybe I'm deluding myself here, but I like to at least *think* that I'm somewhat of a pu; /archives//html/Amps/2009-02/msg00685.html (9,539 bytes)
122. Re: [Amps] house cleaning AMP parts for sale (score: 1): Author: "Edward Swynar" <gswynar@durham.net>; Date: Sun, 1 Mar 2009 07:48:23 -0500; Hi All, I tried that web page listed below, but all I get back is "...can not be found." http://spreadsheets.google.com/ccc?key=pgAd1PO-wiqDBz0lSssZgPw Is this address missing something, or am I...?; /archives//html/Amps/2009-03/msg00007.html (10,565 bytes)
123. Re: [Amps] house cleaning AMP parts for sale (score: 1): Author: "Edward Swynar" <gswynar@durham.net>; Date: Sun, 1 Mar 2009 08:52:06 -0500; Ooooops...! I take it all back -- it's working now! (must have been a gremlin at my web server, I s'pose). "...Never mind"! ~73~ Eddy VE3CUI - VE3XZ some http://picasaweb.google.com/taldridge/AmpPart; /archives//html/Amps/2009-03/msg00009.html (12,105 bytes)
124. Re: [Amps] house cleaning AMP parts for sale (score: 1): Author: "Edward Swynar" <gswynar@durham.net>; Date: Sun, 1 Mar 2009 10:57:26 -0500; Hi All, Yes, it works A-OK for me now -- musta been either a gremlin(!), or our dial-up server here... ~73~ Eddy VE3CUI - VE3XZ ** I just tried the link and it works. One other person is viewing it a; /archives//html/Amps/2009-03/msg00012.html (10,989 bytes)
125. Re: [Amps] 833A (score: 1): Author: "Edward Swynar" <gswynar@durham.net>; Date: Mon, 2 Mar 2009 07:09:07 -0500; Hi Bob, The ARRL HANDBOOK for 1979(?) / 1980(?) featured a low-band amplifier designed around the 833A...even has a HB RF plate choke! ~73~ Eddy VE3CUI - VE3XZ ** refer to the design is P.J. 2000 on; /archives//html/Amps/2009-03/msg00045.html (7,602 bytes)
126. Re: [Amps] spray painting metal (score: 1): Author: "Edward Swynar" <gswynar@durham.net>; Date: Fri, 31 Jul 2009 13:01:44 -0400; Hi Alton, Go the distance & pre-spray the project with aluminum/galvanized metal primer that's specifically designed for that sorta stuff... I never did that on a major project that I built here year; /archives//html/Amps/2009-07/msg00438.html (9,675 bytes)
127. [Amps] The 304H (score: 1): Author: "Edward Swynar" <gswynar@durham.net>; Date: Tue, 1 Sep 2009 08:17:02 -0400; Good Day All, A good Ham radio friend of mine recently blessed me with a donation of three Heintz & Kaufmann 304H triodes (a near-carbon copy of the Eimac 304TH, according to Lud Sibley)... Has anyon; /archives//html/Amps/2009-09/msg00000.html (6,407 bytes)
128. Re: [Amps] The 304H (score: 1): Author: "Edward Swynar" <gswynar@durham.net>; Date: Tue, 1 Sep 2009 10:55:08 -0400; "...It's not worth the effort, as those OLD tubes are probably quite 'gassy' from sitting around for so long." ** Hi Don & Others, Many thanks for all of the interesting comments & suggestions receiv; /archives//html/Amps/2009-09/msg00005.html (8,327 bytes)
129. [Amps] The H&K 304H (score: 1): Author: "Edward Swynar" <gswynar@durham.net>; Date: Sat, 5 Sep 2009 10:31:42 -0400; Many thanks to all who took the time to respond to my query about the old Heintz & Kaufmann 304H (their version of the Eimac 304TH, per Lud's note to me)... Well, research into my radio shack library; /archives//html/Amps/2009-09/msg00047.html (7,392 bytes)
130. Re: [Amps] The H&K 304H (score: 1): Author: "Edward Swynar" <gswynar@durham.net>; Date: Sun, 6 Sep 2009 08:40:46 -0400; Hi Alex, I'd have to re-check the circuit, & that'd mean digging-up that old QST from my archives... I was SO put off by the notion of that 120-watts of drive, I guess, that mentally I stopped lookin; /archives//html/Amps/2009-09/msg00059.html (10,510 bytes)
131. Re: [Amps] 304TH, 304TL, 813 (score: 1): Author: "Edward Swynar" <gswynar@durham.net>; Date: Tue, 8 Sep 2009 07:52:38 -0400; Hi John, There is nice little 1954 paperback from CQ that precedes Stoner's book, which the latter borrowed heavily from when he wrote his "New Sideband Handbook"...I believe it's called "Single Side; /archives//html/Amps/2009-09/msg00086.html (11,642 bytes)
132. Re: [Amps] 304TH, 304TL, 813 (score: 1): Author: "Edward Swynar" <gswynar@durham.net>; Date: Tue, 8 Sep 2009 08:14:51 -0400; Hi Jerome, I had to smile to myself when I read the very last line of your note (below), i.e. the fact that you'd built the amplifier some 50 years ago... It reminded me a lot of the old story of the; /archives//html/Amps/2009-09/msg00088.html (10,214 bytes)
133. [Amps] ICOM Parts Availability (score: 1): Author: "Edward Swynar" <gswynar@durham.net>; Date: Sat, 21 Nov 2009 14:43:53 -0500; Good Afternoon All, Well, not STRICTLY amps content, maybe, but per chance, are there any ICOM 751's - 751A's out there being parted-out at the present time...? I'm specifically looking for a replace; /archives//html/Amps/2009-11/msg00219.html (6,506 bytes)
134. Re: [Amps] which HV connector to use?] (score: 1): Author: "Edward Swynar" <gswynar@durham.net>; Date: Fri, 15 Jan 2010 13:47:15 -0500; Hi Rob, Yes, as Alex correctly points-out, this topic HAS been round the oval at least once before...! Hi Hi ...And as before, I *still* maintain that you can't do much better than to employ good-qua; /archives//html/Amps/2010-01/msg00257.html (11,395 bytes)
135. Re: [Amps] which HV connector to use?] (score: 1): Author: "Edward Swynar" <gswynar@durham.net>; Date: Thu, 21 Jan 2010 09:24:53 -0500; "...With all due respect, using SO239/PL259 seems about the silliest suggestion I have ever heard. I'm not saying the insulation may be insufficient on some models made in the USA when they are mated; /archives//html/Amps/2010-01/msg00297.html (8,359 bytes)
136. Re: [Amps] Good amp to buy (score: 1): Author: "Edward Swynar" <gswynar@durham.net>; Date: Wed, 27 Jan 2010 14:03:38 -0500; "...What do you recommend as a good HIGH power amp?" ** "Roll y'er own!" I say... The venerable, tried & true 813 is still available both new, surplus, at Hamfests, etc. Two of these in parallel grou; /archives//html/Amps/2010-01/msg00425.html (8,844 bytes)
137. Re: [Amps] Good amp to buy maybe build? (score: 1): Author: "Edward Swynar" <gswynar@durham.net>; Date: Sat, 30 Jan 2010 07:33:11 -0500; Hi Guys, Vinyl "peel-n-stick" letters are the labels of choice here... You can buy these things at any of the stationery shops, & they come in a wide variety of sizes & colours & fonts. I like the 1/; /archives//html/Amps/2010-01/msg00598.html (9,253 bytes)
138. Re: [Amps] Good amp to buy maybe build.. (score: 1): Author: "Edward Swynar" <gswynar@durham.net>; Date: Sat, 30 Jan 2010 12:18:36 -0500; Hi All, Carl & Bob offer some sage advice herein to the newbie amplifier builder...! Neophytes, take heed... My own personal "route to redemption" in this regard went thusly: (A) I started out buildi; /archives//html/Amps/2010-01/msg00599.html (12,623 bytes)
139. Re: [Amps] Good amp to buy maybe build.. (score: 1): Author: "Edward Swynar" <gswynar@durham.net>; Date: Sun, 31 Jan 2010 13:02:00 -0500; "...You can't really compare hamfest scrounged parts to brand new. Would you buy an amp from Alpha if they told you all the parts were scrounged from a hamfest? When a person finishes their scrounged; /archives//html/Amps/2010-01/msg00601.html (9,290 bytes)
140. Re: [Amps] QRO Questions (score: 1): Author: "Edward Swynar" <gswynar@durham.net>; Date: Sun, 7 Feb 2010 08:06:00 -0500; Hi All, Here's a rather neat site wherein one can calculate true power output from any specified length / type of RF feedline, while tajing into account matters such as frequency, SWR, etc. Click her; /archives//html/Amps/2010-02/msg00178.html (9,126 bytes)

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