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1. Re: [Amps] Ebay selling CB amps (score: 1): Author: "Diane and Edward Swynar" <deswynar@xplornet.ca>; Date: Fri, 18 Feb 2011 10:36:20 -0500; Didn't the FCC rescind that old standing rule against (potential) Ham-cum-CB amplifiers some time ago...? I know that several years ago eBay USED to de-list any & all auctions that featured so-called; /archives//html/Amps/2011-02/msg00133.html (8,601 bytes)
2. Re: [Amps] door knob capacitors (score: 1): Author: "Diane and Edward Swynar" <deswynar@xplornet.ca>; Date: Wed, 2 Mar 2011 12:39:56 -0500; Hi Guys, All this talk about door knob capacitors only serves to remind me of all of the many travails & troubles that I've had over the years, using them as padders in both the plate loading and pla; /archives//html/Amps/2011-03/msg00022.html (10,548 bytes)
3. Re: [Amps] Homebrew is back.. (score: 1): Author: "Diane & Edward Swynar" <deswynar@xplornet.ca>; Date: Mon, 28 Mar 2011 14:38:12 -0500; Hi Roger et al, I use a pair of 813s in parallel grounded-grid service here in my homebrewed KW amplifier, and--I'm blushing as I type this!--but I have NEVER EVER purchased any of the jugs that are; /archives//html/Amps/2011-03/msg00227.html (10,473 bytes)
4. Re: [Amps] Homebrew is back.. (score: 1): Author: "Diane & Edward Swynar" <deswynar@xplornet.ca>; Date: Mon, 28 Mar 2011 15:34:45 -0500; Hi Roger, Nice note--thanks! Yes, the 813 has cost advantages, alright--but you have to jump through some hoops in order to make them "play" on 15- and 10-meters efficiently, because of the high inte; /archives//html/Amps/2011-03/msg00229.html (11,742 bytes)
5. Re: [Amps] Homebrew is back.. (score: 1): Author: "Diane & Edward Swynar" <deswynar@xplornet.ca>; Date: Tue, 29 Mar 2011 12:01:09 -0500; Hi Carl, I believe bandwidth limitations are for audio transmissions in general, and not specific to SSB... More details surely may be found if you snoop around this Industry Canada (our FCC) website; /archives//html/Amps/2011-03/msg00250.html (11,822 bytes)
6. Re: [Amps] Homebrew is back.. (score: 1): Author: "Diane & Edward Swynar" <deswynar@xplornet.ca>; Date: Tue, 29 Mar 2011 12:09:33 -0500; Hi Carl, "...Tap the 10M coil in the center with the Tune cap which gives a 4X stepup for the required C. Do not add a seperate L coil. The last 4x 813 amp I built used the vacuum variable with the t; /archives//html/Amps/2011-03/msg00251.html (9,682 bytes)
7. Re: [Amps] 813 Amplifier Article (score: 1): Author: "Diane & Edward Swynar" <deswynar@xplornet.ca>; Date: Thu, 31 Mar 2011 12:03:25 -0500; Hi Rob, D'you want RARE...? How about those Eimac water-cooled tubes that were used in mobile linear amplifier designs by Bill Orr in the late 50's/early 60's...?! I believe their type designations w; /archives//html/Amps/2011-03/msg00298.html (10,430 bytes)
8. Re: [Amps] Blown anode choke TL922 (score: 1): Author: "Diane & Edward Swynar" <deswynar@xplornet.ca>; Date: Sun, 24 Apr 2011 17:34:13 -0400; Hi Guys, Does that specific amplifier incorporate 160-meters...? If not, find yourself a good old National-brand R-175A plate choke (I believe that's the model/part number of it), & install it (hopef; /archives//html/Amps/2011-04/msg00509.html (12,906 bytes)
9. Re: [Amps] Blown anode choke TL922 (score: 1): Author: "Diane & Edward Swynar" <deswynar@xplornet.ca>; Date: Mon, 25 Apr 2011 09:20:30 -0400; Hi Guys, I don't believe the old National R-175 / 175A had enough "L" to be suitable for 160-meters--but I could (as always) be corrected! Hi ~73~ de Eddy VE3CUI - VE3XZ ** ** it'll ** if successful.; /archives//html/Amps/2011-04/msg00515.html (15,979 bytes)
10. Re: [Amps] Blown anode choke TL922 (score: 1): Author: "Diane & Edward Swynar" <deswynar@xplornet.ca>; Date: Mon, 25 Apr 2011 10:32:06 -0400; Hi Carl, Most interesting--many thanks! Maybe I'll pull the ol' multi-pi National 3.0-Mh.(?) behemoth out of my HB 2x813 affair, & replace it with the R-175A that I have here in my junque boxxe: a co; /archives//html/Amps/2011-04/msg00520.html (19,799 bytes)
11. Re: [Amps] Hammond HL-2000A (score: 1): Author: Eddy Swynar <deswynar@xplornet.ca>; Date: Sat, 28 May 2011 18:55:38 -0400; Hi Jerome, Originally that amplifier was built by a company in Scarborough, Ontario, called "VIEWSTAR". When they went outta business, Fred Hammond picked-up the product line--and when that arrangeme; /archives//html/Amps/2011-05/msg00272.html (8,694 bytes)
12. Re: [Amps] RF choke switching (score: 1): Author: Eddy Swynar <deswynar@xplornet.ca>; Date: Thu, 9 Jun 2011 22:10:44 -0400; Hi Vic, For some time now I've mulling over a very similar set-up here...only in my instance, I was thinking of somehow shorting the bigger inductor whenever I wanted to use the higher frequency band; /archives//html/Amps/2011-06/msg00116.html (9,359 bytes)
13. Re: [Amps] Shipping to Japan (score: 1): Author: Eddy Swynar <deswynar@xplornet.ca>; Date: Mon, 20 Jun 2011 07:15:29 -0400; Hi Gary, Although it's of little / no concern to the person initiating the shipment, the receiver of anything sent to Canada by way of a commercial carrier is liable for for the brokerage fees that s; /archives//html/Amps/2011-06/msg00262.html (7,892 bytes)
14. Re: [Amps] Shipping to Japan (score: 1): Author: Eddy Swynar <deswynar@xplornet.ca>; Date: Tue, 21 Jun 2011 06:46:37 -0400; Funny thing is, Jim, that anything I receive here via the US Post Office / Canada Post doesn't cost me anything, either, "shuffled paper work" notwithstanding... Go figure. ~73~ de Eddy VE3CUI - VE3X; /archives//html/Amps/2011-06/msg00278.html (8,441 bytes)
15. Re: [Amps] shaft couplers and extensions (score: 1): Author: Eddy Swynar <deswynar@xplornet.ca>; Date: Sat, 27 Aug 2011 07:40:07 -0400; Hi Steve, This is *sorta* related to your parts dilemma, & may well be worth remembering for possible future use...I only just discovered it myself a coupla weeks ago! Do you ever find yourself in ne; /archives//html/Amps/2011-08/msg00205.html (10,509 bytes)
16. Re: [Amps] NOS 811's & 30L1 (score: 1): Author: Eddy Swynar <deswynar@xplornet.ca>; Date: Wed, 21 Sep 2011 15:49:59 -0400; Hi Mike, I wonder just exactly how those 811As were "matched" at source...? Years ago when I built my first HB kilowatt amplifier--using 4 surplus 811As--I learned the hard way of the importance of p; /archives//html/Amps/2011-09/msg00139.html (8,709 bytes)
17. Re: [Amps] Cetron 811a. (score: 1): Author: Eddy Swynar <deswynar@xplornet.ca>; Date: Tue, 6 Dec 2011 13:13:28 -0500; Hi Ulf, Well, I can only speak of my own personal experiences here with a 4 x 811A amplifier that I built here some 31 years ago...FWIW! First-off, I used surplus tubes in mine--so take what I say wi; /archives//html/Amps/2011-12/msg00047.html (10,522 bytes)
18. [Amps] Linear Amplifier Tuning---PROPERLY! (score: 1): Author: Eddy Swynar <deswynar@xplornet.ca>; Date: Mon, 19 Dec 2011 08:32:49 -0500; Good Day All, A stupid question to many, no doubt, but one that I'd like some clarification on, at long last... Specifically, anything that I've read in different literature & in on-line write-ups re; /archives//html/Amps/2011-12/msg00146.html (7,802 bytes)
19. Re: [Amps] Linear Amplifier Tuning---PROPERLY! (score: 1): Author: Eddy Swynar <deswynar@xplornet.ca>; Date: Tue, 20 Dec 2011 07:47:58 -0500; Hi Jim, Here's exactly what Tom says in his website which you directed me to: The last few tuning steps should always be: Load the amplifier to maximum obtainable output at full exciter drive (withou; /archives//html/Amps/2011-12/msg00152.html (8,328 bytes)
20. [Amps] Fwd: Linear Amplifier Tuning---PROPERLY! (score: 1): Author: Eddy Swynar <deswynar@xplornet.ca>; Date: Tue, 20 Dec 2011 08:04:16 -0500; Hi Guys, Obviously this is a VERY interesting question, & one which I really & truly believe that not much thought is given to by the amplifier-using / designing community, judging by the e-mails tha; /archives//html/Amps/2011-12/msg00155.html (10,410 bytes)

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