[Amps] Nitpicking

Sat Apr 29 01:07:54 EDT 2017

I'm sorry Bill, I missed it. Indeed, that infraction does not make me 
above the "reflector law" so I'm going to take this time now to 
apologize for my "transgression" on the Amps reflector. I'm sorry for 
violating the

"Responding to posts from the Digest" law.

I have made a note of it, and I shall not duly violate the law here again.

73,

WT2P

On 4/29/2017 12:03 AM, amps-request at contesting.com wrote:
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> Today's Topics:
>
>     1. Nitpicking (WT2P - CJ Johnson)
>     2. Re: W6PQL Designs (Ken K6MR)
>     3. Re: Ham Tests, was Price per Watt Conversation (Bill Turner)
>     4. Re: Nitpicking (Bill Turner)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Fri, 28 Apr 2017 23:34:04 -0500
> From: WT2P - CJ Johnson <fredwt2p at gmail.com>
> To: Chas Hamilton <schuetzen at gmail.com>, amps at contesting.com
> Subject: [Amps] Nitpicking
> Message-ID: <bd6b3931-bf62-c153-b46d-254eabbafe96 at gmail.com>
> Content-Type: text/plain; charset=windows-1252; format=flowed
>
> Well, I sincerely apologize for offending you because I forgot to change
> the digest label. Anything else you care to nitpick about?
>
> And you people wonder why us younger hams don't want to continue in this
> hobby. A bunch of old people just constantly b***ing and nitpicking at
> each other now.
>
> 73 and Good Luck. Hope you enjoy projecting your manhood on internet
> reflectors and on 40/75M.
> WT2P
>
> On 4/28/2017 11:13 PM, Chas Hamilton wrote:
>> Not a moderator of this list but Netiquette rules say to
>> Never use the digest label as a message title and
>> To change the thread subject line to something germane if you introduce a new subject.
>> Ok list owner- kick me for doing your job.
>>
>> Sent from my iPhone 6s+
>>
>>
>>> On Apr 28, 2017, at 22:36, WT2P - CJ Johnson <fredwt2p at gmail.com> wrote:
>>>
>>> Can we get back to the topic(s) at hand, namely building/repairing amps? I, for one, am very curious about the new SS amp line(s) coming out and researching as much as I can about the W6PQL designs and would like to hear more about the merits of that design and some advice for budding builders who want to experiment along that path.
>>>
>>> Or is this going to devolve into an online version of 7.200?
>>>
>>>
>>> Thanks,
>>> WT2P
>>> _______________________________________________
>>> Amps mailing list
>>> Amps at contesting.com
>>> http://lists.contesting.com/mailman/listinfo/amps
>
>
> ------------------------------
>
> Message: 2
> Date: Sat, 29 Apr 2017 04:51:52 +0000
> From: Ken K6MR <k6mr at outlook.com>
> To: WT2P - CJ Johnson <fredwt2p at gmail.com>, "amps at contesting.com"
> 	<amps at contesting.com>
> Subject: Re: [Amps] W6PQL Designs
> Message-ID:
> 	<CY4PR13MB125498B42F2C2FA2BD3E1D3D9E120 at CY4PR13MB1254.namprd13.prod.outlook.com>
> 	
> Content-Type: text/plain; charset="Windows-1252"
>
> 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 the two K3s.  I have an Arduino that handles switching band data, keyline, etc.. It uses the Tx Focus from the u2R to make the amps follow the active radio.  The amps are in the closet, I just watch them using the Elecraft remote programs.  Ditto for the tuners, one per radio.
>
> All of my antennas are fine on cw/rtty, but the 80m antennas get squirrely above 3650.  I hardly ever operate phone so it doesn?t affect me. The tuners will make them tolerable up to 3750 or so. The KAT500s are good to 1000W at 3:1.  Good enough for me.
>
> As long as the tuner will handle it, the feedline losses are so low on 80 that it?s not worth changing anything. 3 or 4 to 1 isn?t going to break anything even at 1500W with normal sized coax.
>
> Ken K6MR
>
> From: WT2P - CJ Johnson<mailto:fredwt2p at gmail.com>
> Sent: Friday, April 28, 2017 9:18 PM
> To: k6mr at outlook.com<mailto:k6mr at outlook.com>; amps at contesting.com<mailto:amps at contesting.com>
> Subject: Re: [Amps] W6PQL Designs
>
>
> Ken-
>
> Did you get the Combiner/Split for an existing amp?
>
> I'm looking at obviously not duplicating the 4O3A design in SO2R amps, and have been resigned to the fact that i'll probably operate two amps for SO2R... but I am looking at building at least *one* amp that is SS for my shack. That is the pinnacle here, of finally operating an amp that performs well in a contest and being able to say "I built/assembled it myself". And being able to troubleshoot any faults that may occur.
>
> There's been a lot of talk about LDMOS amps, and I'm genuinely curious... I have resonant ants for 40/20, but on 80, my seasonal antenna is fairly resonant but narrow bandwidth (3.5-3.68) before the SWR jumps. I've seen some videos of the LDMOS variant amps taking a 3:1 rating (obviously not at RTTY levels) but it has piqued my interest. Even my 76PA has "appeared" to tolerate my momentary excursions up to 75M, but I know that the reflected power is just eating away at the tubes. Probably even more so with transistors.
>
> I know the answer is to get resonant antennas, which I have done.. I'm impressed with my Alpha 76PA in the fact that it has dealt with me at 3AM mistuning the thing and it still works like a racehorse.
> On 4/28/2017 11:00 PM, Ken K6MR wrote:
> 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.  I?m just too lazy to take on a project like that.
>
> He did an update on the filter design that has better harmonic suppression for the high power model.
>
> Ken K6MR
>
> From: WT2P - CJ Johnson<mailto:fredwt2p at gmail.com>
> Sent: Friday, April 28, 2017 8:37 PM
> To: amps at contesting.com<mailto:amps at contesting.com>
> Subject: Re: [Amps] Amps Digest, Vol 172, Issue 92
>
> Can we get back to the topic(s) at hand, namely building/repairing amps?
> I, for one, am very curious about the new SS amp line(s) coming out and
> researching as much as I can about the W6PQL designs and would like to
> hear more about the merits of that design and some advice for budding
> builders who want to experiment along that path.
>
> Or is this going to devolve into an online version of 7.200?
>
>
> Thanks,
> WT2P
> _______________________________________________
> Amps mailing list
> Amps at contesting.com<mailto:Amps at contesting.com>
> http://lists.contesting.com/mailman/listinfo/amps
>
>
>
>
>
> ------------------------------
>
> Message: 3
> Date: Sat, 29 Apr 2017 04:56:46 +0000
> From: Bill Turner <dezrat at outlook.com>
> To: Amps group <amps at contesting.com>
> Subject: Re: [Amps] Ham Tests, was Price per Watt Conversation
> Message-ID:
> 	<CY1PR0301MB11964E6BDF2C765693261172C0120 at CY1PR0301MB1196.namprd03.prod.outlook.com>
> 	
> Content-Type: text/plain; charset="us-ascii"
>
> ------------ ORIGINAL MESSAGE ------------(may be snipped)
>
> On Fri, 28 Apr 2017 20:07:52 -0700, Jim wrote:
>
>> ##  at least with a 3-500Z amp,  you can shovel anything into it.  Like
>> 3-500Z,  3-400Z,  4-400A,  4-400B, 4-400C.   I have used all 5 of those
>> tubes.   Phillips  8163 will also work.  A  3CX-1200 A7  + D7  will also
>> plug right into those sockets.  A  3CX-1200Z7 will also work.
> REPLY:
>
> My point exactly, replacement variations will be available for a long
> time.
>
> I do agree about certain parts like CPUs. If you can't get the
> original you are probably out of luck. Of course that is true for
> either tube or SS.
>
> As to your friend's Hercules, I'd like to give it a shot. Please give
> him my email address and ask what he wants for it. Thanks.
>
> 73, Bill W6WRT
> dezrat at outlook.com
>
>
> ------------------------------
>
> Message: 4
> Date: Sat, 29 Apr 2017 05:03:25 +0000
> From: Bill Turner <dezrat at outlook.com>
> To: Amps group <amps at contesting.com>
> Subject: Re: [Amps] Nitpicking
> Message-ID:
> 	<CY1PR0301MB11963C7DC0946A25A6CAA3D6C0120 at CY1PR0301MB1196.namprd03.prod.outlook.com>
> 	
> Content-Type: text/plain; charset="us-ascii"
>
> ------------ ORIGINAL MESSAGE ------------(may be snipped)
>
> On Fri, 28 Apr 2017 23:34:04 -0500, WT2P wrote:
>
>> Well, I sincerely apologize for offending you because I forgot to change
>> the digest label. Anything else you care to nitpick about?
> REPLY:
>
> That' snot a nitpick. That "rule" about changing digest subject lines
> was established long ago for good reason.
>
> 73, Bill W6WRT
>
>
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>
> End of Amps Digest, Vol 172, Issue 94
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