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The 1500 watt amp

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Arie Kleingeld PA3A-2

Crowdfunding a 1500 watt amp

I think that crowdfunding a KPA1500 would help to get Elecraft going
again on a big amp.
Crowdfunding would also give a good indication on how many KPA1500's you
could sell in the market as it is today.

73
Arie PA3A
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Guy Olinger K2AV

Re: The 1500 watt amp

In reply to this post by k1tgx

One of the things going here is that people would have sprung for an
*ELECRAFT* KPA1500 with the same reliability, compactness etc. That is to
say they would have sprung for a KPA1500 made to the Wayne/Eric Elecraft
standards, reliability and price points we have all come to love.

The man keeps saying he isn't gonna.

How many hundred times the guy gonna have to post the same answer before
the huddled masses notice he said no. There WAS just as much very positive
chatter from the peanut gallery way back after that first prototype
surfaced at Dayton. Even with all that encouragement the answer still
turned out no.

Wayne grew Elecraft right through the Great Recession. Gotta think he can
call these product to market or not things on the button. If he says no
there's reasons why no.

If he finally says yes it will still be for his reasons and up to his
standards.

73, Guy K2AV

On Monday, August 1, 2016, Jerry <[hidden email]> wrote:

> I'm with Greg. Though I am only a casual DX chaser and even more casual
> contester I found the KPA500 just wasn't enough to suit me, but I knew that
> going in. I only ordered the 500 as a temporary measure to hold me until my
> 2K-FA came in. I certainly would have gone with a 1500w Elecraft product,
> if it existed.
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--
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Ignacy

Re: The 1500 watt amp

Perhaps with slight modifications KPA500 can become KPA1000 or even KPA1300 at a lower weight. Replace MRF151 with the Microsemi device and replace a toroidal PS with a switching power supply. Perhaps adjust firmware so that the amp works near saturation on CW for increased efficiency and perhaps the same heat dissipation as KPA500.

Current standard bearer for amps is SPE 1.3k. 20lb , antenna tuner, 4 antenna switch plus automatic 110/220V switching. At a campsite with AC available, this is an extension for KX3 that suddenly makes KX3 competitive even with moderate antennas. From 5 lb to 25 lb and 100 times stronger.

1.3 k is not perfect. It is loud, may have some hash (2k-fa does), its CAT is limited, and relays click.

Ignacy, NO9E

Jerry Moore

Re: The 1500 watt amp

In reply to this post by Guy Olinger K2AV

I don't see the point of having a large power amp. It doesn't help receive.
My whole Ham life I've been told to put the money into antennas, better
feedlines, and a better receiver.
If you are a skilled operator then you'll make the contact if band
conditions permit.
Doing the math I really don't see why anyone "needs" an amp past
500-600watts. Maybe on 60/160?
If a QRP /Low power station can make the contact but you can't then maybe
you need to ask for help getting your station optimized a bit better.
Just my view.
I used to run an SB220 and loved it when I made the contact. I later came to
resent Ops I heard running power just to get over the pileup.
I sold the Amp and don't regret it for a minute. If I were to get another
amp the math shows 500w to be the sweet spot, however, I have so much
opportunity to improve feedlines and antenna it doesn't makes sense to run
power at this time.

Just my view.
Jer

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Dr. William J. Schmidt, II

Re: The 1500 watt amp

In reply to this post by wayne burdick

The question of Elecraft building1500 watt amps has been settled, but there are those of us that can build pretty much whatever we want... and that includes me. I currently have a twin BLF188XR amp nearing completion on my lab bench, and my issue has always been making it look like the existing equipment... whatever that is. I would be very happy with Elecraft offering "project boxes" like they did with past lines, or connecting with the sub that does their sheet metal do get some boxes that go with the K3. That way those advanced amps could become reality and Elecraft really has no skin in the game.

Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ

Owner - Operator
Big Signal Ranch – K9ZC
Staunton, Illinois

Owner – Operator
Villa Grand Piton – J68HZ
Soufriere, St. Lucia W.I.
Rent it: www.VillaGrandPiton.com

email: [hidden email]

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Charlie T, K3ICH

Re: The 1500 watt amp

In reply to this post by Jerry Moore

We should probably carry that logic over to many facets of life:

No automobile needs to go over 45 MPH or need more than 25 HP.
AC and iced drinks should be outlawed.
Also, the sugar content needs to be about 1/10th of what it is currently in
ALL foods.
Houses should be limited to 1000 Sq. Ft.
87 Octane gasoline is plenty.
Jack Daniels should be limited to 70 proof.
One six-pack of Bud per month.

Oh wait, strike those last two.

I wasn't thinking.

73, Charlie k3ICH

-----Original Message-----
From: Elecraft [mailto:[hidden email]] On Behalf Of Jerry
Moore
Sent: Monday, August 01, 2016 9:51 AM
To: 'Guy Olinger K2AV' <[hidden email]>; 'Elecraft Reflector'
<[hidden email]>
Subject: Re: [Elecraft] The 1500 watt amp

I don't see the point of having a large power amp. It doesn't help receive.
My whole Ham life I've been told to put the money into antennas, better
feedlines, and a better receiver.
If you are a skilled operator then you'll make the contact if band
conditions permit.
Doing the math I really don't see why anyone "needs" an amp past
500-600watts. Maybe on 60/160?
If a QRP /Low power station can make the contact but you can't then maybe
you need to ask for help getting your station optimized a bit better.
Just my view.
I used to run an SB220 and loved it when I made the contact. I later came to
resent Ops I heard running power just to get over the pileup.
I sold the Amp and don't regret it for a minute. If I were to get another
amp the math shows 500w to be the sweet spot, however, I have so much
opportunity to improve feedlines and antenna it doesn't makes sense to run
power at this time.

Just my view.
Jer

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Nr4c

Re: The 1500 watt amp

In reply to this post by Dr. William J. Schmidt, II

Buy some of the "2D " blocks from Elecraft and have Front Panel Express to make the panels for you from your design.

Sent from my iPhone
...nr4c. bill

> On Aug 1, 2016, at 9:56 AM, Dr. William J. Schmidt, II <[hidden email]> wrote:
>
> The question of Elecraft building1500 watt amps has been settled, but there are those of us that can build pretty much whatever we want... and that includes me. I currently have a twin BLF188XR amp nearing completion on my lab bench, and my issue has always been making it look like the existing equipment... whatever that is. I would be very happy with Elecraft offering "project boxes" like they did with past lines, or connecting with the sub that does their sheet metal do get some boxes that go with the K3. That way those advanced amps could become reality and Elecraft really has no skin in the game.
>
>
> Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ
>
> Owner - Operator
> Big Signal Ranch – K9ZC
> Staunton, Illinois
>
> Owner – Operator
> Villa Grand Piton – J68HZ
> Soufriere, St. Lucia W.I.
> Rent it: www.VillaGrandPiton.com
>
> email: [hidden email]
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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N2TK

Re: The 1500 watt amp

In reply to this post by k1tgx

I remember seeing the KPA1500 at Dayton heating up the building. I reached
for my credit card but was told not taking orders. Bummer.

Today I have a KPA500 and an Acom-2000A (very early one) sitting on a shelf
7' off the floor in the basement. Literally right below my feet here in the
office/shack. Keeps the heat and noise downstairs. Both track the K3. So
when I key the amp it is on freq and ready. I have two switches between the
pair of K3's - one to select which K3 and one to select which amp.
Most of the time both amps are off. I find 100 W is usually enough. But in a
decent pileup I will turn on the KPA500. For DXpeditions like VK0 and FT4,
especially on the low bands, I can get in and out more quickly with the
Acom. For contesting the Acom stays on the entire weekend.

This setup also gives me backup in case one of the amps fail. Also give me
more watts on 6M.

Someone mentioned about you got to hear them to work them. And I agree money
should be first spent on receiving - equipment, antennas, coax, receive
antennas, etc. But once you have optimized as much as you can because of
land, money and other restrictions, an amp is a nice way of helping you in a
pileup to work a station you can hear. And especially on the low bands going
from 500 to 1500 W may make the difference from working and not working a
station.
I still remember the one morning I heard Zone 19 on Topband for my first and
only time at my sunrise. Unfortunately I did not have the KPA500 then. Only
had the Acom. But the Acom was off. While I waited for the Acom to heat up I
tried calling the UA0 with 100W. He knew I was calling him but he could not
pull out my full call. By the time the Acom cycled ON, the UA0 was down in
the noise. Bummer.

73,
N2TK, Tony

-----Original Message-----
From: Elecraft [mailto:[hidden email]] On Behalf Of Jerry
Sent: Monday, August 01, 2016 7:36 AM
To: [hidden email]
Subject: Re: [Elecraft] The 1500 watt amp

I'm with Greg. Though I am only a casual DX chaser and even more casual
contester I found the KPA500 just wasn't enough to suit me, but I knew that
going in. I only ordered the 500 as a temporary measure to hold me until my
2K-FA came in. I certainly would have gone with a 1500w Elecraft product, if
it existed.
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EricJ-2

Re: The 1500 watt amp

In reply to this post by Jerry Moore

The point is dominance. If you are the strongest signal, the DX hears
you better. If you are the strongest, you hear the DX better because
everyone else stands by until you make the contact and go away. I lived
among the legendary California Kilowatts when I was a DXer. Letting them
in and letting them chat about their vacation at that location with the
DX because they could was the only way you could work the DX eventually
yourself. Same as in life.

Eric KE6US

On 8/1/2016 6:50 AM, Jerry Moore wrote:

> I don't see the point of having a large power amp. It doesn't help receive.
> My whole Ham life I've been told to put the money into antennas, better
> feedlines, and a better receiver.
> If you are a skilled operator then you'll make the contact if band
> conditions permit.
> Doing the math I really don't see why anyone "needs" an amp past
> 500-600watts. Maybe on 60/160?
> If a QRP /Low power station can make the contact but you can't then maybe
> you need to ask for help getting your station optimized a bit better.
> Just my view.
> I used to run an SB220 and loved it when I made the contact. I later came to
> resent Ops I heard running power just to get over the pileup.
> I sold the Amp and don't regret it for a minute. If I were to get another
> amp the math shows 500w to be the sweet spot, however, I have so much
> opportunity to improve feedlines and antenna it doesn't makes sense to run
> power at this time.
>
> Just my view.
> Jer
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
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> Message delivered to [hidden email]
>
>

EricJ-2

EC2 Clone (Was The 1500 watt amp)

In reply to this post by Nr4c

If you can build whatever you want, you can easily build the enclosure.
Here is an EC2 clone I built last week in about 6 hours. I made the side
panels with a hacksaw, file and drill press. The front panel I cut and
formed with an inexpensive 8" shear/brake. This one is branded Grizzly,
but Harbor Freight has them as well. I didn't use the Elecraft 2D
fasteners because I only had 2 on hand and didn't want to make a bunch
of little fussy pieces. I used 4 long sections of 1/4" square aluminum
stock and drilled them with the same hole pattern as the 2D fasteners.
The front panel will get painted after I drill and punch it for the
current project.

https://flic.kr/p/KBivtc

The smaller K1 enclosure is nearly the same design (slightly different
top cover) so it scales down easily. It would scale up for a large amp
just as easily. The cost of the EC2-clone was about $4 in materials
(0.080" and 0.050" sheet and 1/4" bar stock). All can be built with a
hacksaw, file and a hand drill. A bandsaw and a drill press make it more
precise. A shear/brake makes it even easier.

Eric KE6US

On Aug 1, 2016, at 9:56 AM, Dr. William J. Schmidt, II
<[hidden email]> wrote:
>> The question of Elecraft building1500 watt amps has been settled, but there are those of us that can build pretty much whatever we want... and that includes me.

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wayne burdick

Re: The 1500 watt amp

Administrator

In reply to this post by EricJ-2

I wrote an epic poem on this subject :) See:

http://www.qsotoday.com/n6kr-poetry.html

Wayne
N6KR

On Aug 1, 2016, at 9:04 AM, EricJ <[hidden email]> wrote:

> The point is dominance. If you are the strongest signal, the DX hears you better. If you are the strongest, you hear the DX better because everyone else stands by until you make the contact and go away. I lived among the legendary California Kilowatts when I was a DXer. Letting them in and letting them chat about their vacation at that location with the DX because they could was the only way you could work the DX eventually yourself. Same as in life.
>
> Eric KE6US
>
>
> On 8/1/2016 6:50 AM, Jerry Moore wrote:
>> I don't see the point of having a large power amp. It doesn't help receive.
>> My whole Ham life I've been told to put the money into antennas, better
>> feedlines, and a better receiver.
>> If you are a skilled operator then you'll make the contact if band
>> conditions permit.
>> Doing the math I really don't see why anyone "needs" an amp past
>> 500-600watts. Maybe on 60/160?
>> If a QRP /Low power station can make the contact but you can't then maybe
>> you need to ask for help getting your station optimized a bit better.
>> Just my view.
>> I used to run an SB220 and loved it when I made the contact. I later came to
>> resent Ops I heard running power just to get over the pileup.
>> I sold the Amp and don't regret it for a minute. If I were to get another
>> amp the math shows 500w to be the sweet spot, however, I have so much
>> opportunity to improve feedlines and antenna it doesn't makes sense to run
>> power at this time.
>>
>> Just my view.
>> Jer
>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to [hidden email]
>>
>>
>
> ______________________________________________________________
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wayne burdick

Re: Crowdfunding a 1500 watt amp

Administrator

In reply to this post by Arie Kleingeld PA3A-2

This would be extreme overkill, IMHO. I suggest a simple survey instead.

Wayne
N6KR

On Aug 1, 2016, at 5:20 AM, Arie Kleingeld PA3A <[hidden email]> wrote:

> I think that crowdfunding a KPA1500 would help to get Elecraft going again on a big amp.
> Crowdfunding would also give a good indication on how many KPA1500's you could sell in the market as it is today.
>
> 73
> Arie PA3A
> ______________________________________________________________
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wlbrooks

Re: The 1500 watt amp

In reply to this post by wayne burdick

Very nice, Wayne.

On Monday, August 1, 2016, Wayne Burdick <[hidden email]> wrote:

> I wrote an epic poem on this subject :) See:
>
> http://www.qsotoday.com/n6kr-poetry.html
>
> Wayne
> N6KR
>
>
> On Aug 1, 2016, at 9:04 AM, EricJ <[hidden email] <javascript:;>>
> wrote:
>
> > The point is dominance. If you are the strongest signal, the DX hears
> you better. If you are the strongest, you hear the DX better because
> everyone else stands by until you make the contact and go away. I lived
> among the legendary California Kilowatts when I was a DXer. Letting them in
> and letting them chat about their vacation at that location with the DX
> because they could was the only way you could work the DX eventually
> yourself. Same as in life.
> >
> > Eric KE6US
> >
> >
> > On 8/1/2016 6:50 AM, Jerry Moore wrote:
> >> I don't see the point of having a large power amp. It doesn't help
> receive.
> >> My whole Ham life I've been told to put the money into antennas, better
> >> feedlines, and a better receiver.
> >> If you are a skilled operator then you'll make the contact if band
> >> conditions permit.
> >> Doing the math I really don't see why anyone "needs" an amp past
> >> 500-600watts. Maybe on 60/160?
> >> If a QRP /Low power station can make the contact but you can't then
> maybe
> >> you need to ask for help getting your station optimized a bit better.
> >> Just my view.
> >> I used to run an SB220 and loved it when I made the contact. I later
> came to
> >> resent Ops I heard running power just to get over the pileup.
> >> I sold the Amp and don't regret it for a minute. If I were to get
> another
> >> amp the math shows 500w to be the sweet spot, however, I have so much
> >> opportunity to improve feedlines and antenna it doesn't makes sense to
> run
> >> power at this time.
> >>
> >> Just my view.
> >> Jer
> >>
> >> ______________________________________________________________
> >> Elecraft mailing list
> >> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> >> Help: http://mailman.qth.net/mmfaq.htm
> >> Post: mailto:[hidden email] <javascript:;>
> >>
> >> This list hosted by: http://www.qsl.net
> >> Please help support this email list: http://www.qsl.net/donate.html
> >> Message delivered to [hidden email] <javascript:;>
> >>
> >>
> >
> > ______________________________________________________________
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>
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--
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432-244-8863
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Jim Brown-10

Re: The 1500 watt amp

In reply to this post by Jerry Moore

On Mon,8/1/2016 6:50 AM, Jerry Moore wrote:
> If a QRP /Low power station can make the contact but you can't then maybe
> you need to ask for help getting your station optimized a bit better.

I don't buy this logic. I've optimized my station and have an antenna
farm most hams would die for. I've got 320 countries confirmed with
unlimited power, running 1.5kW to work the ones over difficult paths.
Since I'm not competitive in DX contests from W6, I often work them QRP.
I have about 160 countries confirmed running 5W.

Others have said it quite well -- the primary reason for running high
power is receive noise at the station you're trying to work. If the
other guy's noise is S9, you're unlikely to work him QRP, no matter how
much you have optimized your station. Likewise, if your antenna is a low
dipole or a wire strung into a tree, you're starting with at least one
hand tied behind you. No use tying the second hand with low power.

73, Jim K9YC

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'DGB'

Re: Crowdfunding a 1500 watt amp

In reply to this post by wayne burdick

PSE - start it! ;-)

73 de NS9I

On 8/1/2016 11:55 AM, Wayne Burdick wrote:

> This would be extreme overkill, IMHO. I suggest a simple survey instead.
>
> Wayne
> N6KR
>
>
> On Aug 1, 2016, at 5:20 AM, Arie Kleingeld PA3A <[hidden email]> wrote:
>
>> I think that crowdfunding a KPA1500 would help to get Elecraft going again on a big amp.
>> Crowdfunding would also give a good indication on how many KPA1500's you could sell in the market as it is today.
>>
>> 73
>> Arie PA3A
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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>> Post: mailto:[hidden email]
>>
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>

Jim Cassidy

Re: The 1500 watt amp

In reply to this post by Jim Brown-10

Lynn W. Taylor, WB6UUT

Re: The 1500 watt amp

In reply to this post by Guy Olinger K2AV

I've been in way too many situations where my customers said "you need
to offer this."

I spent time and money making "this" available, and turned to the
customers and said "here it is, it costs this much."

Silence.

Just sayin'

-- Lynn

P.S. I'm happy at 12 watts.

On 8/1/2016 5:30 AM, Guy Olinger K2AV wrote:
> There WAS just as much very positive
> chatter from the peanut gallery way back after that first prototype
> surfaced at Dayton. Even with all that encouragement the answer still
> turned out no.

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Phil Wheeler-2

Re: The 1500 watt amp

In reply to this post by EricJ-2

Hmm .. another solution would be to reduce max
power to 500 W and enforce it ;-)

Phil W7OX

On 8/1/16 9:04 AM, EricJ wrote:

> The point is dominance. If you are the strongest
> signal, the DX hears you better. If you are the
> strongest, you hear the DX better because
> everyone else stands by until you make the
> contact and go away. I lived among the legendary
> California Kilowatts when I was a DXer. Letting
> them in and letting them chat about their
> vacation at that location with the DX because
> they could was the only way you could work the
> DX eventually yourself. Same as in life.
>
> Eric KE6US
>
>
> On 8/1/2016 6:50 AM, Jerry Moore wrote:
>> I don't see the point of having a large power
>> amp. It doesn't help receive.
>> My whole Ham life I've been told to put the
>> money into antennas, better
>> feedlines, and a better receiver.
>> If you are a skilled operator then you'll make
>> the contact if band
>> conditions permit.
>> Doing the math I really don't see why anyone
>> "needs" an amp past
>> 500-600watts. Maybe on 60/160?
>> If a QRP /Low power station can make the
>> contact but you can't then maybe
>> you need to ask for help getting your station
>> optimized a bit better.
>> Just my view.
>> I used to run an SB220 and loved it when I made
>> the contact. I later came to
>> resent Ops I heard running power just to get
>> over the pileup.
>> I sold the Amp and don't regret it for a
>> minute. If I were to get another
>> amp the math shows 500w to be the sweet spot,
>> however, I have so much
>> opportunity to improve feedlines and antenna it
>> doesn't makes sense to run
>> power at this time.
>>
>> Just my view.
>> Jer

Jerry Moore

Re: The 1500 watt amp

+1
Too many alligators imho.
On the weak path contacts. Sure, how often does that happen?

-----Original Message-----
From: Elecraft [mailto:[hidden email]] On Behalf Of Phil
Wheeler
Sent: Monday, August 01, 2016 1:20 PM
To: [hidden email]
Subject: Re: [Elecraft] The 1500 watt amp

Hmm .. another solution would be to reduce max power to 500 W and enforce it
;-)

Phil W7OX

On 8/1/16 9:04 AM, EricJ wrote:

> The point is dominance. If you are the strongest signal, the DX hears
> you better. If you are the strongest, you hear the DX better because
> everyone else stands by until you make the contact and go away. I
> lived among the legendary California Kilowatts when I was a DXer.
> Letting them in and letting them chat about their vacation at that
> location with the DX because they could was the only way you could
> work the DX eventually yourself. Same as in life.
>
> Eric KE6US
>
>
> On 8/1/2016 6:50 AM, Jerry Moore wrote:
>> I don't see the point of having a large power amp. It doesn't help
>> receive.
>> My whole Ham life I've been told to put the money into antennas,
>> better feedlines, and a better receiver.
>> If you are a skilled operator then you'll make the contact if band
>> conditions permit.
>> Doing the math I really don't see why anyone "needs" an amp past
>> 500-600watts. Maybe on 60/160?
>> If a QRP /Low power station can make the contact but you can't then
>> maybe you need to ask for help getting your station optimized a bit
>> better.
>> Just my view.
>> I used to run an SB220 and loved it when I made the contact. I later
>> came to resent Ops I heard running power just to get over the pileup.
>> I sold the Amp and don't regret it for a minute. If I were to get
>> another amp the math shows 500w to be the sweet spot, however, I have
>> so much opportunity to improve feedlines and antenna it doesn't makes
>> sense to run power at this time.
>>
>> Just my view.
>> Jer

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Fred Moore-2

Re: The 1500 watt amp

In reply to this post by Jerry Moore

I'm with you Jer..

I always wonder that some of you guys "cost/QSO" is.. it only a hobby,
not a masculinity contest.. Many times I see a 10K station and ask how
often they operate.. many times the answer is I turn on at least once
per month to make sure it work..

Fred

On 8/1/16 9:50 AM, Jerry Moore wrote:

--
Fred Moore
email: [hidden email]
[hidden email]
phone: 321-217-8699

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