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Total 19 documents matching your query.

1. [Amps] 4-1000 Cooling (score: 1)
Author: "Mark Beckwith" <n5ot@n5ot.com>
Date: Fri, 5 Aug 2005 09:11:29 -0500
I just bought a homebrew deck that used a modern day coffee decanter pot (i.e. "Mr. Coffee" et al) with the bottom cut out of it, plus some aluminum sheet for the chimney. I'll try and take a photo
/archives//html/Amps/2005-08/msg00164.html (7,135 bytes)

2. Re: [Amps] 4-1000 Cooling (score: 1)
Author: "Mark Beckwith" <n5ot@n5ot.com>
Date: Sun, 7 Aug 2005 21:35:44 -0500
You fail to account for the difference in price between a used chimney on eBay and a pickle jar. I suspect this is a compelling reason to remember pickle jars under certain circumstances. Mark, N5OT
/archives//html/Amps/2005-08/msg00267.html (7,112 bytes)

3. Re: [Amps] SB-230 question (score: 1)
Author: "Mark Beckwith, N5OT" <n5ot@n5ot.com>
Date: Tue, 13 Jun 2006 09:42:21 -0500
If a previous owner was using an outboard TR switch, under some circumstances he might not need the inboard TR-relay. I was considering doing this to an old store-bought amp to achieve full QSK. I fo
/archives//html/Amps/2006-06/msg00273.html (7,676 bytes)

4. Re: [Amps] 3cx3000A7 driver (score: 1)
Author: "Mark Beckwith" <n5ot@n5ot.com>
Date: Sun, 23 Jul 2006 14:41:21 -0500
I also grew up with a Cosmophone. Mine was a Cosmophone 35. Dave Bell was my Elmer, and he leant me his out-of-service Cosmophone when I was 14 years old (1972). I operated that rig for years. After
/archives//html/Amps/2006-07/msg00970.html (8,524 bytes)

5. Re: [Amps] 3cx3000A7 driver (score: 1)
Author: "Mark Beckwith" <n5ot@n5ot.com>
Date: Sun, 23 Jul 2006 18:20:38 -0500
The two radios sound very similar indeed. Mark, N5OT _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2006-07/msg00976.html (8,680 bytes)

6. Re: [Amps] B&W PT2500A (score: 1)
Author: "Mark Beckwith" <n5ot@n5ot.com>
Date: Mon, 5 Feb 2007 06:16:43 -0600
Paul, here's some comments from some owners - you should be aware that it started as "Viewstar" and then B&W bought them out. The B&W and the Viewstar are absolutely the same. http://www.eham.net/rev
/archives//html/Amps/2007-02/msg00048.html (7,995 bytes)

7. Re: [Amps] PS-3000A (score: 1)
Author: "Mark Beckwith" <n5ot@n5ot.com>
Date: Tue, 6 Mar 2007 09:37:25 -0600
Thanks Fernando. I, too, am very interested in anyone's experience with this HV switching power supply. Also I wonder how easy they are to build and if that would really save any money. Mark, N5OT __
/archives//html/Amps/2007-03/msg00114.html (6,774 bytes)

8. [Amps] Help ID this amp? (score: 1)
Author: "Mark Beckwith" <n5ot@n5ot.com>
Date: Tue, 6 Mar 2007 14:35:39 -0600
I just got this amp opened up and frankly I can't make heads or tails out of it. Some of you on AMPS have more experience with this kind of thing than I do, so perhaps you could point me in the right
/archives//html/Amps/2007-03/msg00118.html (7,012 bytes)

9. Re: [Amps] AMP Reflector Quality of Information (score: 1)
Author: "Mark Beckwith" <n5ot@n5ot.com>
Date: Tue, 20 Mar 2007 08:05:39 -0500
Wow. Everyone carries two buckets; one has water in it and the other gasoline. Everyone has to decide which bucket to use when they see a little fire break out. Everyone gets to make their own decis
/archives//html/Amps/2007-03/msg00240.html (8,455 bytes)

10. Re: [Amps] Jennings and Kilovac vacuum relays for sale (score: 1)
Author: "Mark Beckwith" <n5ot@n5ot.com>
Date: Sat, 7 Jul 2007 08:13:34 -0500
I tried www.gigavac.com, went right to it, and on the front page there's a link in red for "Amateur Radio Operators" which takes you to a page that describes their whole ham deal, which seems about a
/archives//html/Amps/2007-07/msg00065.html (8,237 bytes)

11. Re: [Amps] AL-80A tube glow (score: 1)
Author: "Mark Beckwith" <n5ot@n5ot.com>
Date: Sat, 7 Jul 2007 08:36:37 -0500
Hmm. Okay. I have used amps (all GG) with these kinds of tubes and sometimes they glow more than other times. Why is this? It seems like it has happened when one of these conditions exist: 1. out of
/archives//html/Amps/2007-07/msg00067.html (7,222 bytes)

12. [Amps] Tube Glow 101 (score: 1)
Author: "Mark Beckwith" <n5ot@n5ot.com>
Date: Tue, 10 Jul 2007 09:17:41 -0500
Thanks Tom, for taking the time to write this helpful long explanation (most of which is not included in this response). I understand there's more to it than I thought, and you managed to increase m
/archives//html/Amps/2007-07/msg00146.html (9,926 bytes)

13. Re: [Amps] Caution buying from Anna's CW Store on eBay (score: 1)
Author: "Mark Beckwith" <n5ot@n5ot.com>
Date: Thu, 10 Jan 2008 07:44:14 -0600
My goodness. I know if *I* was looking to bilk people and wondered what segment of the population was loosest with their hard-earned money, I would try to appeal to CW radio ham experimenters. (I'm j
/archives//html/Amps/2008-01/msg00091.html (7,725 bytes)

14. Re: [Amps] How to safely clean an amplifier? (score: 1)
Author: "Mark Beckwith" <n5ot@n5ot.com>
Date: Sat, 31 May 2008 14:26:19 -0500
Don't I recall hearing as a kid that Henry Radio cleaned Collins S-Lines by putting them in a bath tub and taking the hose to them? I guess it would depend on how the amp is built and what it will wi
/archives//html/Amps/2008-05/msg00221.html (9,490 bytes)

15. Re: [Amps] Transformer reliability? 34yr old Collins... (score: 1)
Author: "Mark Beckwith" <n5ot@n5ot.com>
Date: Sat, 4 Oct 2008 11:43:14 -0500
Man am I glad this thread came up. I just moved a big transformer I bought used in 1976. It's been sitting all this time waiting for my 4-1000 project. I'll bake it when the XYL is out. What further
/archives//html/Amps/2008-10/msg00023.html (11,635 bytes)

16. Re: [Amps] help on a old transformer (score: 1)
Author: "Mark Beckwith" <n5ot@n5ot.com>
Date: Mon, 29 Dec 2008 09:41:00 -0600
I'm so lucky my big iron sitting on the floor of the garage has terminals on each side that are clearly marked :) All I have to do is worry about dehumidifying it (or whatever you guys call that proc
/archives//html/Amps/2008-12/msg00363.html (7,538 bytes)

17. Re: [Amps] Question for All Amp Builders... (score: 1)
Author: "Mark Beckwith" <n5ot@n5ot.com>
Date: Fri, 20 Feb 2009 14:57:48 -0600
My compliments to everyone who replied to Scott's request. Constructive answers. This is great! Scott I haven't built one either, I'm still collecting parts for 4 single-band amps. One day I'll need
/archives//html/Amps/2009-02/msg00597.html (10,299 bytes)

18. Re: [Amps] Source for large purchase of toroids? (score: 1)
Author: "Mark Beckwith" <n5ot@n5ot.com>
Date: Sat, 23 Jan 2010 08:30:31 -0600
I don't really know how the prices compare but I have bought, like, 100 at a time in the past more than once, and have been completely satisfied, from Newark: Phone: 1-800-4-NEWARK || Website: http:/
/archives//html/Amps/2010-01/msg00284.html (9,988 bytes)

19. [Amps] CP smoking room for trade (score: 1)
Author: "Mark Beckwith" <n5ot@n5ot.com>
Date: Wed, 12 May 2010 11:40:06 -0500
I just found out I have a smoking room (double) at the Crowne Plaza and would prefer a non-smoking room (double). By chance is there anyone on here who is the other way round and wants to trade? My r
/archives//html/Amps/2010-05/msg00143.html (6,480 bytes)

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