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Total 26 documents matching your query.

1. Re: [Amps] Great Stuff (score: 1)
Author: Ken Beals <k6mr@outlook.com>
Date: Wed, 17 Apr 2013 20:11:38 -0700
That address goes to a roofer in the UK. You perhaps mean Apex Electronics in Sun Valley? Ken _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contes
/archives//html/Amps/2013-04/msg00170.html (8,327 bytes)

2. Re: [Amps] Great Stuff (score: 1)
Author: Ken Beals <k6mr@outlook.com>
Date: Wed, 17 Apr 2013 20:23:20 -0700
Rick corrected the url. I wonder if the proprietor is related to the original Apex. I remember going there in the 60s and the owner had a couple of sons working there....maybe grandsons now... This p
/archives//html/Amps/2013-04/msg00172.html (8,070 bytes)

3. Re: [Amps] 12V IM3 (score: 1)
Author: Ken K6MR <k6mr@outlook.com>
Date: Fri, 22 May 2015 10:28:00 -0700
As Paul said, it can be done.  Manufacturers tout receiver figures that are nonsensical.  They are real, they can be duplicated and proven, but the gain us little to nothing as long as the bands are
/archives//html/Amps/2015-05/msg00154.html (11,724 bytes)

4. Re: [Amps] question about SPE 1.3K FA amp (score: 1)
Author: Ken K6MR <k6mr@outlook.com>
Date: Mon, 9 Nov 2015 09:39:14 -0800
Probably something similar to the NXP BLF188XR LDMOS that W6PQL uses in his amps. Two devices in the package with a common source. Rated for 1270 CW watts out @ 2-30 MHz. He has an example of a two p
/archives//html/Amps/2015-11/msg00039.html (7,507 bytes)

5. Re: [Amps] Filament monitoring - LOOKING FOR ELMER (score: 1)
Author: Ken K6MR <k6mr@outlook.com>
Date: Mon, 11 Apr 2016 10:56:48 -0700
There is no second chance with this stuff. Occasionally one gets lucky. I grabbed the plate cap of a 3-1000Z when I was 16. Ended up across the room before I knew what hit me. Still have scars from t
/archives//html/Amps/2016-04/msg00019.html (9,474 bytes)

6. Re: [Amps] New amplifier selection: SPE (score: 1)
Author: Ken K6MR <k6mr@outlook.com>
Date: Sun, 21 Aug 2016 09:02:55 -0700
If you mean an amp from anyone, Flex is showing a new 4O3A designed amp on their web page. Ken K6MR The 2K FA has been around for a while now. Is there any rumor of a new 2KW amp? - Pau -- This email
/archives//html/Amps/2016-08/msg00060.html (8,808 bytes)

7. Re: [Amps] LDMOS HEAT SPREADERS (score: 1)
Author: Ken K6MR <k6mr@outlook.com>
Date: Wed, 31 Aug 2016 11:09:31 -0700
With some care and ingenuity, a thick copper or aluminium plate placed on the kitchen range or a camping stove will do fine. W6PQL has a video on his site that shows how he does it. Hot plate and lar
/archives//html/Amps/2016-08/msg00081.html (7,996 bytes)

8. Re: [Amps] The cost of amplifiers, radios (score: 1)
Author: Ken K6MR <k6mr@outlook.com>
Date: Sun, 4 Dec 2016 02:15:42 +0000
"In terms of effort, I would have been way ahead to flip burgers at McDonalds until I had the cash." Except that you don't learn anything at McDs. The best part of building stuff is figuring out why
/archives//html/Amps/2016-12/msg00039.html (9,393 bytes)

9. Re: [Amps] triode vs tetrode (score: 1)
Author: Ken K6MR <k6mr@outlook.com>
Date: Tue, 6 Dec 2016 00:33:36 +0000
When I was in electronics class the teacher called the screen grid in a tetrode an accelerator. With that not doing any accelerating I don't think it would work very well. Not as popular now, but bac
/archives//html/Amps/2016-12/msg00109.html (7,401 bytes)

10. Re: [Amps] SS amps and auto-tune. Is it even necessary? (score: 1)
Author: Ken K6MR <k6mr@outlook.com>
Date: Thu, 8 Dec 2016 18:16:13 +0000
Another option to rolling your own higher power SS amp is to combine commercial amps. As W2SC has noted, combiners/splitters are simple and reliable. I have two KPA500s running in parallel, which whi
/archives//html/Amps/2016-12/msg00197.html (8,522 bytes)

11. Re: [Amps] FCC Denies Expert Linears' Request for Waiver of (score: 1)
Author: Ken K6MR <k6mr@outlook.com>
Date: Thu, 29 Dec 2016 03:37:23 +0000
The FCCs War on CB Amplifiers has been as effective as the DOJs War on Drugs. And, just like the drug dealers are making a fortune, the CB amplifier suppliers are doing quite well. The FCC (like the
/archives//html/Amps/2016-12/msg00496.html (8,950 bytes)

12. Re: [Amps] PowerGenius XL Video (score: 1)
Author: Ken K6MR <k6mr@outlook.com>
Date: Fri, 10 Feb 2017 22:48:42 +0000
One advantage of SS amps is the ability to do SO2R with a single amp. Ive not heard of a tube amp that will change bands quickly enough to allow on the fly instant band changes (or are there?). Ken K
/archives//html/Amps/2017-02/msg00030.html (8,634 bytes)

13. Re: [Amps] PowerGenius XL Video (score: 1)
Author: Ken K6MR <k6mr@outlook.com>
Date: Sat, 11 Feb 2017 20:08:28 +0000
run all day key down maximum smoke on FM and RTTY (people really do that?) Maybe not all day, but in a serious RTTY SO2R contest effort dual CQ mode will keep my amp(s) transmitting nearly 100% of th
/archives//html/Amps/2017-02/msg00058.html (12,805 bytes)

14. Re: [Amps] blowing up CMOS (score: 1)
Author: Ken K6MR <k6mr@outlook.com>
Date: Tue, 11 Apr 2017 23:06:42 +0000
Because of this, you must be constantly grounded by a wrist strap. When you get really serious about static control, you make the floor conductive and require all personnel to wear heel straps. Stand
/archives//html/Amps/2017-04/msg00085.html (8,685 bytes)

15. Re: [Amps] Fwd: Re: FYI Visalia Attendees (score: 1)
Author: Ken K6MR <k6mr@outlook.com>
Date: Fri, 21 Apr 2017 04:49:49 +0000
Updated FAQ on the KPA1500: http://www.elecraft.com/KPA1500/KPA1500%20FAQ%20rev%20A1b.pdf High-resolution front panel photo: http://www.elecraft.com/KPA1500/KPA1500_cropped_hi.jpg High-resolution re
/archives//html/Amps/2017-04/msg00150.html (9,526 bytes)

16. Re: [Amps] Fwd: Re: FYI Visalia Attendees (score: 1)
Author: Ken K6MR <k6mr@outlook.com>
Date: Fri, 21 Apr 2017 05:12:10 +0000
Yes and Yes. Ken K6MR Is the Power Supply included ? How about the Antenna Tuner ? We all don't own SteppIrs !! 73, Dick, W1KSZ On Thu, Apr 20, 2017 at 9:49 PM, Ken K6MR <k6mr@outlook.com> wrote: ___
/archives//html/Amps/2017-04/msg00154.html (11,260 bytes)

17. Re: [Amps] Ham Tests, was Price per Watt Conversation (score: 1)
Author: Ken K6MR <k6mr@outlook.com>
Date: Sat, 29 Apr 2017 03:22:06 +0000
It's a dying skill but it still has a way to go. Yes, but no other mode can offer the fun factor of cw. Ive never been very good at it, but the idea of A Boy and his Radio (copyright K0HB) is what ke
/archives//html/Amps/2017-04/msg00414.html (11,751 bytes)

18. Re: [Amps] W6PQL Designs (score: 1)
Author: Ken K6MR <k6mr@outlook.com>
Date: Sat, 29 Apr 2017 04:00:35 +0000
I bought the combiner/splitter assemblies made by W6PQL for my dual KPA500 project. High quality boards and they work great. The amp pallets look like they are the same high quality. Im just too lazy
/archives//html/Amps/2017-04/msg00418.html (8,793 bytes)

19. Re: [Amps] W6PQL Designs (score: 1)
Author: Ken K6MR <k6mr@outlook.com>
Date: Sat, 29 Apr 2017 04:51:52 +0000
Yes. I have two KPA500s. I use the splitter to drive both of them on the same band, and the combiner to put the two outputs back together. I also have a set of relays that switch the assembly between
/archives//html/Amps/2017-04/msg00421.html (11,706 bytes)

20. Re: [Amps] W6PQL Designs (score: 1)
Author: Ken K6MR <k6mr@outlook.com>
Date: Sat, 29 Apr 2017 05:17:05 +0000
Ive been using it for about a year now, including some all weekend dual CQ efforts. No problems. The TopTen A/B relays take just under 30 ms to switch, so I program in 60 ms of delay between PTT and
/archives//html/Amps/2017-04/msg00427.html (13,536 bytes)


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