Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

[Edward R Cole]

Having done a few home metal bending jobs, I leave it to the 
professional metal smiths if I need a nice enclosure.  I use to have 
access to a brake at work (retired five years).  I also used to buy 
some really nice enclosures from a K3 ham in the east who is now sk 
(used in my 2m-8877 and CCI HF amps).


I have resorted to the wood block method but the results were not 
good enough to sell someone.  So either, I use angle stock for 
corners on HB projects or buy commercial enclosures.  Bud is still in 
business for a utilitarian box.  Mouser offers a selection which I 
got an enclosure for my 30w 1296 PA project.  But costs are high when 
you add shipping.


Thus, I chose to use the Hammond box for my production amp.  It costs 
$20.29 from Mouser.  Can't make any that cheap after material costs, 
tooling costs, and labor.


BTW there are more than four holes in the 80w amplifier 
project.  Four to attach heat sink to chassis; eight for coax 
connectors; four to attach pc board; two for 80w RF module; four for 
fan attachment; two to attach LED power indicator.  Most will require 
tapping 4-40 or 6-32 threads into the heat sink.  Hammond box cover 
already has tapped holes for attachment.  Probably a couple hours 
metal work labor in each amp without having to make the enclosure.


73, Ed - KL7UW

Date: Tue, 22 Sep 2015 18:58:44 -0700
From: "Richard W. Solomon" <w1...@earthlink.net>
To: "'Elecraft Reflector Reflector'" <elecraft@mailman.qth.net>
Subject: Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier
Message-ID: <000c01d0f5a3$610227f0$230677d0$@net>
Content-Type: text/plain;   charset="UTF-8"

Bending sheet metal to make a box ... really ...

If I needed something that looked like the letter "Z" to mount stuff
Then maybe.

But for a project box there are just too many sizes and variations to
Waste my time and money to make a box.

Just one mans opinion.

73, Dick, W1KSZ



73, Ed - KL7UW
http://www.kl7uw.com
"Kits made by KL7UW"
Dubus Mag business:
dubus...@gmail.com

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Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

[Chester Alderman]

A REAL ham speaks!! One of the few!!
Congrats on your accomplishments Jim.

73,
Tom - W4BQF


-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of James
Bennett
Sent: Tuesday, September 22, 2015 2:23 PM
To: Elecraft Reflector Reflector
Subject: Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

I built that W6PQL 80 watt amp last year. Built the aluminum chassis, too. I
did not have a sheet metal brake, but a few minutes on Google turned up
quite a few home-brew brake plans. I built one of them and used it to form
the chassis for my amp, and later on a couple other small boxes for shack
utility projects. If you enjoy building stuff, creating your own brake is
worth the effort. I think I made mine for less than $25. And it works pretty
darn well!

Jim / W6JHB



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Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

[James Bennett]

I built that W6PQL 80 watt amp last year. Built the aluminum chassis, too. I 
did not have a sheet metal brake, but a few minutes on Google turned up quite a 
few home-brew brake plans. I built one of them and used it to form the chassis 
for my amp, and later on a couple other small boxes for shack utility projects. 
If you enjoy building stuff, creating your own brake is worth the effort. I 
think I made mine for less than $25. And it works pretty darn well!

Jim / W6JHB


> On   Tuesday, Sep 22, 2015, at  Tuesday, 10:47 AM, P.J.Hicks 
>  wrote:
> 
> 
> 
> Crafting a case very similar to the one pictured on the sited page is 
> relatively easy. While I do have a brake and no problem crafting cases I will 
> tell you how I would do it without major tools. 
> 
> 1. Do a drawing of the case with sizes and flanges laid out piece by piece; 
> top, bottom, sides, ends, etc. 
> 
> 2. Locate the nearest Metal Supermarket. I use them as they are close and 
> reasonable and I know them and their stock. They will cut your metal pieces 
> to size very cheaply. Often free. 
> 
> 3. Contact them for a quote and order. They may mail your order, I do not 
> know. There are other places who do the same type business; small orders with 
> cutting. 
> 
> 4. Cut 2 hardwood blocks that just fits inside the lines of the front and 
> rear panels. They should be smaller by the thickness of the metal material 
> plus a smidgeon. 
> 
> 5. Carefully fit the blocks within the lines of the panel you are bending and 
> clamp in a vice. The blocks should be aligned as well as with in the panel 
> lines; Use double sided tape if necessary. 
> 
> 6. Use another hardwood block as a "push block" and gently push and hammer 
> against the flange all along its length until it is bent 90 deg. bending only 
> a small part of the angle at a time. 
> 
> 7. The blocks are also useful when drilling the holes. Some may prefer to 
> drill first but that makes hole alignment very difficult. 
> 
> PJH, N7PXY
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[Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

[P.J.Hicks]

Crafting a case very similar to the one pictured on the sited page is 
relatively easy. While I do have a brake and no problem crafting cases I will 
tell you how I would do it without major tools. 

1. Do a drawing of the case with sizes and flanges laid out piece by piece; 
top, bottom, sides, ends, etc. 

2. Locate the nearest Metal Supermarket. I use them as they are close and 
reasonable and I know them and their stock. They will cut your metal pieces to 
size very cheaply. Often free. 

3. Contact them for a quote and order. They may mail your order, I do not know. 
There are other places who do the same type business; small orders with 
cutting. 

4. Cut 2 hardwood blocks that just fits inside the lines of the front and rear 
panels. They should be smaller by the thickness of the metal material plus a 
smidgeon. 

5. Carefully fit the blocks within the lines of the panel you are bending and 
clamp in a vice. The blocks should be aligned as well as with in the panel 
lines; Use double sided tape if necessary. 

6. Use another hardwood block as a "push block" and gently push and hammer 
against the flange all along its length until it is bent 90 deg. bending only a 
small part of the angle at a time. 

7. The blocks are also useful when drilling the holes. Some may prefer to drill 
first but that makes hole alignment very difficult. 

PJH, N7PXY
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Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

[Bob McGraw - K4TAX]

Yes well, as to EME and MS, my viewpoint is anything less than legal 
limit is considered QRP.Which brings a point to mind.  I get really 
annoyed with stations adding a power amp and doing nothing to improve 
their receiving situation.  Seems hams like to have folks brag on their 
big signal when their  receiving conditions are as deaf as an anvil.


73
Bob, K4TAX
K3S s/n 10,163


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Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

[Jim Brown]

On Tue,9/22/2015 6:39 AM, Bob McGraw - K4TAX wrote:
My experience on VHF is 10 to 20 watts and a 10 ele yagi is OK for 
most CW and SSB work when good tropo conditions exist. 


Your experience would be quite different west of the Mississippi, where 
population density is much less, and with much greater distances between 
population centers. That's why, for example, the FCC licenses 10 dB 
greater TX power west of the MS river.


Higher TX power also helps for moonbounce and meteor scatter.

73, Jim K9YC
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Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

[Bob McGraw - K4TAX]

Are you saying I can run 15 KW PEP in West Memphis AR which is west of 
the MS river and only 1.5 KW in Memphis, TN which is east of the MS river?


73
Bob, K4TAX
K3S s/n 10,163

That's why, for example, the FCC licenses 10 dB
greater TX power west of the MS river.



Higher TX power also helps for moonbounce and meteor scatter.


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Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

[Jim Brown]

On Tue,9/22/2015 10:45 AM, Bob McGraw - K4TAX wrote:
Are you saying I can run 15 KW PEP in West Memphis AR which is west of 
the MS river and only 1.5 KW in Memphis, TN which is east of the MS 
river? 


Sorry -- I was referencing FM broadcast and TV, and failed to say so.

73, Jim K9YC
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Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

[David Rutledge]

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Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

[Phil Hystad]

And, there is a much better quality sheet metal brake for about $189 from 
Eastwood (Versa Bend Sheet Metal Brake).

I saw that Harbor Freight one for $39 but I wouldn’t buy it without looking at 
it (physically touching it) closely.

phil, K7PEH

> On Sep 22, 2015, at 1:56 PM, Dale LeDoux  wrote:
> 
> Harbor Freight sells an 18” sheet metal brake for about forty bucks.
> 
> I’ve used a lot of Harbor Freight tools.  Some of them require a bit of 
> tweaking to work perfectly, but they’re generally good enough right out of 
> the box.
> 
> Dale
> W5OHM
> 
>> On Sep 22, 2015, at 1:22 PM, James Bennett  wrote:
>> 
>> I built that W6PQL 80 watt amp last year. Built the aluminum chassis, too. I 
>> did not have a sheet metal brake, but a few minutes on Google turned up 
>> quite a few home-brew brake plans. I built one of them and used it to form 
>> the chassis for my amp, and later on a couple other small boxes for shack 
>> utility projects. If you enjoy building stuff, creating your own brake is 
>> worth the effort. I think I made mine for less than $25. And it works pretty 
>> darn well!
>> 
>> Jim / W6JHB
>> 
>> 
>>> On   Tuesday, Sep 22, 2015, at  Tuesday, 10:47 AM, P.J.Hicks 
>>>  wrote:
>>> 
>>> 
>>> 
>>> Crafting a case very similar to the one pictured on the sited page is 
>>> relatively easy. While I do have a brake and no problem crafting cases I 
>>> will tell you how I would do it without major tools. 
>>> 
>>> 1. Do a drawing of the case with sizes and flanges laid out piece by piece; 
>>> top, bottom, sides, ends, etc. 
>>> 
>>> 2. Locate the nearest Metal Supermarket. I use them as they are close and 
>>> reasonable and I know them and their stock. They will cut your metal pieces 
>>> to size very cheaply. Often free. 
>>> 
>>> 3. Contact them for a quote and order. They may mail your order, I do not 
>>> know. There are other places who do the same type business; small orders 
>>> with cutting. 
>>> 
>>> 4. Cut 2 hardwood blocks that just fits inside the lines of the front and 
>>> rear panels. They should be smaller by the thickness of the metal material 
>>> plus a smidgeon. 
>>> 
>>> 5. Carefully fit the blocks within the lines of the panel you are bending 
>>> and clamp in a vice. The blocks should be aligned as well as with in the 
>>> panel lines; Use double sided tape if necessary. 
>>> 
>>> 6. Use another hardwood block as a "push block" and gently push and hammer 
>>> against the flange all along its length until it is bent 90 deg. bending 
>>> only a small part of the angle at a time. 
>>> 
>>> 7. The blocks are also useful when drilling the holes. Some may prefer to 
>>> drill first but that makes hole alignment very difficult. 
>>> 
>>> PJH, N7PXY
>>> __
>>> Elecraft mailing list
>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>> Help: http://mailman.qth.net/mmfaq.htm
>>> Post: mailto:Elecraft@mailman.qth.net
>>> 
>>> This list hosted by: http://www.qsl.net
>>> Please help support this email list: http://www.qsl.net/donate.html
>>> Message delivered to w6...@me.com
>> 
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> 
> 
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Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

[Richard W. Solomon]

Bending sheet metal to make a box ... really ... 

If I needed something that looked like the letter "Z" to mount stuff 
Then maybe.

But for a project box there are just too many sizes and variations to 
Waste my time and money to make a box.

Just one mans opinion.

73, Dick, W1KSZ

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Phil 
Hystad
Sent: Tuesday, September 22, 2015 5:41 PM
To: Dale LeDoux
Cc: Elecraft Reflector Reflector
Subject: Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

And, there is a much better quality sheet metal brake for about $189 from 
Eastwood (Versa Bend Sheet Metal Brake).

I saw that Harbor Freight one for $39 but I wouldn’t buy it without looking at 
it (physically touching it) closely.

phil, K7PEH

> On Sep 22, 2015, at 1:56 PM, Dale LeDoux <dled...@camtel.net> wrote:
> 
> Harbor Freight sells an 18” sheet metal brake for about forty bucks.
> 
> I’ve used a lot of Harbor Freight tools.  Some of them require a bit of 
> tweaking to work perfectly, but they’re generally good enough right out of 
> the box.
> 
> Dale
> W5OHM
> 
>> On Sep 22, 2015, at 1:22 PM, James Bennett <w6...@me.com> wrote:
>> 
>> I built that W6PQL 80 watt amp last year. Built the aluminum chassis, too. I 
>> did not have a sheet metal brake, but a few minutes on Google turned up 
>> quite a few home-brew brake plans. I built one of them and used it to form 
>> the chassis for my amp, and later on a couple other small boxes for shack 
>> utility projects. If you enjoy building stuff, creating your own brake is 
>> worth the effort. I think I made mine for less than $25. And it works pretty 
>> darn well!
>> 
>> Jim / W6JHB
>> 
>> 
>>> On   Tuesday, Sep 22, 2015, at  Tuesday, 10:47 AM, P.J.Hicks 
>>> <hickspj...@comcast.net> wrote:
>>> 
>>> 
>>> 
>>> Crafting a case very similar to the one pictured on the sited page is 
>>> relatively easy. While I do have a brake and no problem crafting cases I 
>>> will tell you how I would do it without major tools. 
>>> 
>>> 1. Do a drawing of the case with sizes and flanges laid out piece by piece; 
>>> top, bottom, sides, ends, etc. 
>>> 
>>> 2. Locate the nearest Metal Supermarket. I use them as they are close and 
>>> reasonable and I know them and their stock. They will cut your metal pieces 
>>> to size very cheaply. Often free. 
>>> 
>>> 3. Contact them for a quote and order. They may mail your order, I do not 
>>> know. There are other places who do the same type business; small orders 
>>> with cutting. 
>>> 
>>> 4. Cut 2 hardwood blocks that just fits inside the lines of the front and 
>>> rear panels. They should be smaller by the thickness of the metal material 
>>> plus a smidgeon. 
>>> 
>>> 5. Carefully fit the blocks within the lines of the panel you are bending 
>>> and clamp in a vice. The blocks should be aligned as well as with in the 
>>> panel lines; Use double sided tape if necessary. 
>>> 
>>> 6. Use another hardwood block as a "push block" and gently push and hammer 
>>> against the flange all along its length until it is bent 90 deg. bending 
>>> only a small part of the angle at a time. 
>>> 
>>> 7. The blocks are also useful when drilling the holes. Some may prefer to 
>>> drill first but that makes hole alignment very difficult. 
>>> 
>>> PJH, N7PXY
>>> __
>>> Elecraft mailing list
>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>> Help: http://mailman.qth.net/mmfaq.htm
>>> Post: mailto:Elecraft@mailman.qth.net
>>> 
>>> This list hosted by: http://www.qsl.net Please help support this 
>>> email list: http://www.qsl.net/donate.html Message delivered to 
>>> w6...@me.com
>> 
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>> dled...@camtel.net
> 
> 
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Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

[Dale LeDoux]

Harbor Freight sells an 18” sheet metal brake for about forty bucks.

I’ve used a lot of Harbor Freight tools.  Some of them require a bit of 
tweaking to work perfectly, but they’re generally good enough right out of the 
box.

Dale
W5OHM

> On Sep 22, 2015, at 1:22 PM, James Bennett  wrote:
> 
> I built that W6PQL 80 watt amp last year. Built the aluminum chassis, too. I 
> did not have a sheet metal brake, but a few minutes on Google turned up quite 
> a few home-brew brake plans. I built one of them and used it to form the 
> chassis for my amp, and later on a couple other small boxes for shack utility 
> projects. If you enjoy building stuff, creating your own brake is worth the 
> effort. I think I made mine for less than $25. And it works pretty darn well!
> 
> Jim / W6JHB
> 
> 
>> On   Tuesday, Sep 22, 2015, at  Tuesday, 10:47 AM, P.J.Hicks 
>>  wrote:
>> 
>> 
>> 
>> Crafting a case very similar to the one pictured on the sited page is 
>> relatively easy. While I do have a brake and no problem crafting cases I 
>> will tell you how I would do it without major tools. 
>> 
>> 1. Do a drawing of the case with sizes and flanges laid out piece by piece; 
>> top, bottom, sides, ends, etc. 
>> 
>> 2. Locate the nearest Metal Supermarket. I use them as they are close and 
>> reasonable and I know them and their stock. They will cut your metal pieces 
>> to size very cheaply. Often free. 
>> 
>> 3. Contact them for a quote and order. They may mail your order, I do not 
>> know. There are other places who do the same type business; small orders 
>> with cutting. 
>> 
>> 4. Cut 2 hardwood blocks that just fits inside the lines of the front and 
>> rear panels. They should be smaller by the thickness of the metal material 
>> plus a smidgeon. 
>> 
>> 5. Carefully fit the blocks within the lines of the panel you are bending 
>> and clamp in a vice. The blocks should be aligned as well as with in the 
>> panel lines; Use double sided tape if necessary. 
>> 
>> 6. Use another hardwood block as a "push block" and gently push and hammer 
>> against the flange all along its length until it is bent 90 deg. bending 
>> only a small part of the angle at a time. 
>> 
>> 7. The blocks are also useful when drilling the holes. Some may prefer to 
>> drill first but that makes hole alignment very difficult. 
>> 
>> PJH, N7PXY
>> __
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Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

[Edward R Cole]

I have analyzed my costs to build single units of the W6PQL 80w 2m 
amplifier and the total material costs come to $254.  Based on that I 
have posted information at:

http://www.kl7uw.com/kits.htm

The amplifier will use a 1.375x5.375x8 inch heat sink with a 120mm 
fan.  Fan will be thermistor controlled.  The enclosure chosen is the 
Hammond 1590D 4.7x7.4 inch diecast aluminum box.  It will be 
available in natural aluminum or  painted a light flat gray.  A 
ten-segment LED RF power indicator will be included.  Otherwise is as 
described on the W6PQL website (link from my website).


It will be offered as a partial kit (all surface-mount components 
pre-installed but all thru-hole left to the customer).  Price $284.00 
+ $18 flat-rate shipping & insurance
Also available fully assembled and tested for $354 + $18 flat-rate 
shipping & insurance


Optional N female connectors for additional $5.00.

All prices in US funds and subject to change without notice and only 
apply in the USA.  I will ship international but shipping will be more.


NO ORDERS accepted until November, 2015.  E-mail me if you want to be 
put on a pre-order waiting list. PayPal will be preferred method of 
payment.  These will be built one at a time with my 30-day delivery 
policy.  90-day warrantee on labor and materials.


Input power range 50mw to 10w which must be stated with order.


73, Ed - KL7UW
http://www.kl7uw.com
"Kits made by KL7UW"
Dubus Mag business:
dubus...@gmail.com

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Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

[Kevin Stover]

Most metal houses will shear stuff to size for a small pittance. A 
desktop drill press for drilling holes, Bob's your uncleCase parts.


Being a semi-retired production and R+D welder, and having a pretty nice 
Mig/Tig setup just begging to melt some metal, it wouldn't take me long 
to tig weld an aluminum case.


 Look Ma! Very few screws! I count four to hold the heat sink in the 
case, maybe six, and whatever the number is to attach an N style chassis 
connector.


--
R. Kevin Stover
AC0H
ARRL
FISTS #11993
SKCC #215
NAQCC #3441

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Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

[w7nmd]

Try this:  Chris at the Metalwerks. You can reach him anytime at
801-231-2658 or by email Chris at KF7P dot com. I have used him for a
number of projects and can vouch for the quality of workmanship and
timeliness of delivery. He probably still has the set of drawings that I
sent him for the enclosure.

73
Palmer W7NMD
Ozark Precision TIG
Mountain Home, Ar



On 9/21/2015 10:34 PM, Ny9h@comcastNet [via Elecraft] wrote:
>
>
>
>
>  Original message 
> From: Phil Hystad <[hidden email] 
> >
> Date: 09/21/2015  8:06 PM  (GMT-05:00)
> To: "Richard W. Solomon" <[hidden email] 
> >
> Cc: [hidden email] 
> Subject: Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier
>
>
> > On Sep 21, 2015, at 4:55 PM, Richard W. Solomon <[hidden email] 
> > wrote:
> >
> > Have you looked at Hammond boxes ? Fairly heavy aluminum.
> >
> > 73, Dick, W1KSZ
> >
>
> Yes, I have considered them.  Our local industrial supply electronics 
> retail store (Vetco)  carries a selection of Hammond Boxes and I 
> didn’t find anything suitable.  I also checked the Hammond Web site 
> but again the closest match I could find was a bit larger than I 
> wanted (although, if pushed into a corner I agree it could work).
>
> They are heavy aluminum — cast aluminum I think.  And, this is one 
> thing I didn’t like about them but I guess my reasons for not liking 
> them were a bit trivial.
>
> 73, phil, K7PEH
>
> P.S.  I should admit that the main reason I am not rushing out to 
> build this W6PQL amp is because I haven’t had the spare time and I 
> have this back-of-the-head thought that Elecraft would come out with a 
> 2-meter brick announcement the day I finished that project.
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Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

[David Anderson]

Hi Phil,

For me, no. I already have a KX3 with transverter and SSPA. I have an old BNOS 
3W to 100 W amplifier in my cupboard, should I ever wish to go portable with 
the KX3 ( though I have not bought the internal 2m transverter yet, as I may 
instead get a 4m transverter to cover that band).

Can I ask you a few questions?

What would be your intended use for this amplifier?

1. Out portable with the KX3 (where you have a small generator or large 
battery)? Ruggedness is more important than looks here.

2. Local FM simplex at home where 3W barefoot from the KX3 might not be quite 
enough and you want a nice looking box to match the rest of the lineup?

3. Casual weak signal work from home on SSB CW WSJT? 

4. As a driver for a legal limit triode tube amplifier for Real DX and contest 
work?

These are the main uses I could see, and you have to ask how many people might 
be interested in those. ( You did ask the question and I think you will find 
the answer is very few in real numbers).

For item 4, more and more the legal limit tube amplifier is being replaced by 
the LDMOS SSPA which requires only 3W or so to drive it to a kW out, so the 
driver amplifier is no longer required.

For Item 3, there are so many DC- Light multimode multiband radios out there 
that cover 2m with 50 to 100 W output now that satisfy the casual user, the 
real contester and DXer will use a K3 and high quality transverter and tube or 
LDMOS SSPA nowadays.

I just can't see the numbers being anywhere near high enough for Elecraft to be 
able to make an intermediate power VHF amplifier at what would be a price that 
most would even think about paying. If in any doubt see how much the newly 
introduced matching Elecraft speakers are, and that is for a product that is 
going to be much more popular.

As others have said, the alternative is to build a W6PQL amplifier kit, into an 
Elecraft speaker box if necessary ;-)

73

David Anderson GM4JJJ 

> On 21 Sep 2015, at 22:58, Phil Hystad  wrote:
> 
> I am curious — how much interest is there in a 2-meter, solid-state, 
> amplifier from Elecraft that could be used with either the KX3 or the K3.
> 
> I own a KX3 with the 2-meter option and I have considered buying a 2-meter 
> amplifier in the 35 to 90 watt power range (or, something close to that).  
> But, I would rather have an Elecraft product.  Do others feel the same way or 
> am I wanting too much?
> 
> 
> 73, phil, K7PEH
> 
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Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

[Bob McGraw - K4TAX]

My experience on VHF is 10 to 20 watts and a 10 ele yagi is OK for most 
CW and SSB work when good tropo conditions exist.  However, more antenna 
in the air will help on both receive and transmit and be to more 
advantage to all as opposed to 100 to 200 watts alone.


73
Bob, K4TAX
K3S s/n 10,163


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Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

[Brian Linn]

Yes, a 2m amp from Electraft would be desireable.

73, Brian KD0HII

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Phil 
Hystad
Sent: Monday, September 21, 2015 16:58
To: Elecraft Reflector
Subject: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

I am curious — how much interest is there in a 2-meter, solid-state, amplifier 
from Elecraft that could be used with either the KX3 or the K3.

I own a KX3 with the 2-meter option and I have considered buying a 2-meter 
amplifier in the 35 to 90 watt power range (or, something close to that).  But, 
I would rather have an Elecraft product.  Do others feel the same way or am I 
wanting too much?


73, phil, K7PEH

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Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

[Charlie T, K3ICH]

My feeling is that unless an acceptable design or product could be re-branded, 
the total sales potential would never justify the engineering effort.

Just ask yourself, of all the K3's and K3S' sold, how many have the internal 2M 
option installed.  Of that percentage, how many need an outboard amp.  From 
THAT percentage, how many either already have one * or how many will buy a 
"pre-owned" amp?

I'd bet the answer is "Not a lot".  (Guessing under a hundred.)

73, Charlie k3ICH

* My TE Systems amp yields about 400 watts out driven by the internal 2M board 
in my K3S




-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Brian Linn
Sent: Tuesday, September 22, 2015 7:27 AM
To: 'Elecraft Reflector' <Elecraft@mailman.qth.net>
Subject: Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

Yes, a 2m amp from Electraft would be desireable.

73, Brian KD0HII



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Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

[Jerry Moore]

If the option had 50w I'd have it on my list to install. At 10w I'm not
confident it would be a good value. 

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of
Charlie T, K3ICH
Sent: Tuesday, September 22, 2015 8:07 AM
To: Elecraft@mailman.qth.net
Subject: Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

My feeling is that unless an acceptable design or product could be
re-branded, the total sales potential would never justify the engineering
effort.

Just ask yourself, of all the K3's and K3S' sold, how many have the internal
2M option installed.  Of that percentage, how many need an outboard amp.
>From THAT percentage, how many either already have one * or how many will
buy a "pre-owned" amp?

I'd bet the answer is "Not a lot".  (Guessing under a hundred.)

73, Charlie k3ICH

* My TE Systems amp yields about 400 watts out driven by the internal 2M
board in my K3S




-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Brian
Linn
Sent: Tuesday, September 22, 2015 7:27 AM
To: 'Elecraft Reflector' <Elecraft@mailman.qth.net>
Subject: Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

Yes, a 2m amp from Electraft would be desireable.

73, Brian KD0HII



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Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

[ae4pb]

I'm eventually wanting to play with Sats so I'll need a full duplex 2m/70cm
anyway.

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bob
McGraw - K4TAX
Sent: Tuesday, September 22, 2015 9:40 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

My experience on VHF is 10 to 20 watts and a 10 ele yagi is OK for most CW
and SSB work when good tropo conditions exist.  However, more antenna in the
air will help on both receive and transmit and be to more advantage to all
as opposed to 100 to 200 watts alone.

73
Bob, K4TAX
K3S s/n 10,163


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Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

[Harry Yingst via Elecraft]

I saw those before but does he have it as a 100% complete Kit?
(all grilled and stenciled case as well)


  From: Kevin Stover <kevin.sto...@mediacombb.net>
 To: elecraft@mailman.qth.net 
 Sent: Monday, September 21, 2015 6:43 PM
 Subject: Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier
   
If you're not averse to soldering here is a solution which I guarantee 
will be less expensive that anything Elecraft can or will produce. No 
fancy Auxbus, no standing on one leg and cooking your breakfast while 
singing the national anthem, it's just an amplifier with RF detect or 
key line PTT.

http://www.w6pql.com/2_meter_80w_all_mode_amplifier.htm

10W in 80-100W depending on how the Toshiba S-AV36 is biased.


On 9/21/2015 5:12 PM, Gary wrote:
> Uncle Phil,
>
> Absolutely.
>
> I am contemplating purchasing a clean 2m amp to give me 100w output from a 2m 
> internal transverter in my K3.
> I would get on that pre-order list from day one.
> I hope Eric & Wayne will do this.
> Gary


-- 
R. Kevin Stover
AC0H
ARRL
FISTS #11993
SKCC #215
NAQCC #3441



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Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

[Wes (N7WS)]

Or build something using one of these:

https://youtu.be/OSp54qHiS5E


On 9/21/2015 3:53 PM, Harry Yingst via Elecraft wrote:

I saw those before but does he have it as a 100% complete Kit?
(all grilled and stenciled case as well)


   From: Kevin Stover <kevin.sto...@mediacombb.net>
  To: elecraft@mailman.qth.net
  Sent: Monday, September 21, 2015 6:43 PM
  Subject: Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

If you're not averse to soldering here is a solution which I guarantee

will be less expensive that anything Elecraft can or will produce. No
fancy Auxbus, no standing on one leg and cooking your breakfast while
singing the national anthem, it's just an amplifier with RF detect or
key line PTT.

http://www.w6pql.com/2_meter_80w_all_mode_amplifier.htm

10W in 80-100W depending on how the Toshiba S-AV36 is biased.


On 9/21/2015 5:12 PM, Gary wrote:

Uncle Phil,

Absolutely.

I am contemplating purchasing a clean 2m amp to give me 100w output from a 2m 
internal transverter in my K3.
I would get on that pre-order list from day one.
I hope Eric & Wayne will do this.
Gary




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Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

[Richard W. Solomon]

Have you looked at Hammond boxes ? Fairly heavy aluminum.

73, Dick, W1KSZ

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Phil 
Hystad
Sent: Monday, September 21, 2015 4:14 PM
To: Kevin Stover
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

Kevin,

Yes, I know of W6PQL.  In fact, on my first version of the message I posted, I 
made a few comments about the 80-watt 2-meter amp.  But, I thought that would 
be too much in one message so I did not include it.

I was planning to build the W6PQL 80-watt amp and was already to order the 
commercial PCB fitted out with the SMT parts which is still a good deal.  But, 
and this was the thing that stopped me, I could not find a descent utility 
cabinet for the amp.  W6PQL lists instructions and templates for making your 
own but I have tried that before.  Without a bending brake it gets really 
sloppy in forming the box.  I can cut the right gauge aluminum no problem.  I 
even looked into buying those little corner bracket things that Elecraft uses 
in their kits for joining two sides at 90-degrees.  But, it would have cost 
almost $50 for those alone (Elecraft charges pretty pennies, lots of them, for 
those parts).

I am still on a half-way hunt for a good box.  I have even scoured the local 
ham-fests this year looking for something that might work well without too much 
trouble — didn’t find anything.  The boxes that are offered by various 
electronic parts suppliers just don’t seem suitable — they would be a very last 
resort.

73, phil, K7PEH


> On Sep 21, 2015, at 3:43 PM, Kevin Stover <kevin.sto...@mediacombb.net> wrote:
> 
> If you're not averse to soldering here is a solution which I guarantee will 
> be less expensive that anything Elecraft can or will produce. No fancy 
> Auxbus, no standing on one leg and cooking your breakfast while singing the 
> national anthem, it's just an amplifier with RF detect or key line PTT.
> 
> http://www.w6pql.com/2_meter_80w_all_mode_amplifier.htm
> 
> 10W in 80-100W depending on how the Toshiba S-AV36 is biased.
> 
> 
> On 9/21/2015 5:12 PM, Gary wrote:
>> Uncle Phil,
>> 
>> Absolutely.
>> 
>> I am contemplating purchasing a clean 2m amp to give me 100w output from a 
>> 2m internal transverter in my K3.
>> I would get on that pre-order list from day one.
>> I hope Eric & Wayne will do this.
>> Gary
> 
> 
> --
> R. Kevin Stover
> AC0H
> ARRL
> FISTS #11993
> SKCC #215
> NAQCC #3441
> 
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Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

[Gary]

Times two please
Gary 

-Original Message-
From: "KarlErb" <karle...@gmail.com>
Sent: ‎22/‎09/‎2015 8:37 AM
To: "Phil Hystad" <phys...@mac.com>
Cc: "Elecraft Reflector" <Elecraft@mailman.qth.net>
Subject: Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

Great question, Phil.  Count me in, especially if it's a kit.

Karl
W3BF

Karl Erb
5253 Strathmore Ave
Kensington, MD 20895
301 456 6212

> On Sep 21, 2015, at 5:58 PM, Phil Hystad <phys...@mac.com> wrote:
> 
> I am curious — how much interest is there in a 2-meter, solid-state, 
> amplifier from Elecraft that could be used with either the KX3 or the K3.
> 73, phil, K7PEH
> 
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Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

[Edward R Cole]

Anyone needing a W6PQL 80w 2m linear amplifier for their KX3-2M or 
Elecraft transverter and want it professionally built I have the 
answer for you.  I had already considered offering the W6PQL 80w amp 
fully assembled with RF output bar meter.  The kit comes with 
attenuator that will accept up to 10w drive or a low as 50mw.  For 
the KX3 I suggest 1-to-2w as a good drive level.  I didn't finish my 
cost analysis but I can state cost will be approximately $100 over 
parts for an amp assembled by "Kits made by KL7UW".  The amp will 
include a fan-cooled 1-inch heatsink auto-controlled by thermistor.


I cannot start assembly until November as I am totally booked until 
then building Down East Microwave Transverters (five in que at 
present).  I will work up the complete costs and will have that on my website:

http://www.kl7uw.com/kits.htm

I currently offer 90-day warrantee on my workmanship building DEMI kits.

If interested contact me off the list and I will add you to my info 
list.  Not taking orders until I have the complete costs analyzed and 
a price set.  Thanks.


73, Ed - KL7UW


rom: Kevin Stover <kevin.sto...@mediacombb.net>
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier
Message-ID: <560087fa.4050...@mediacombb.net>
Content-Type: text/plain; charset=utf-8; format=flowed

If you're not averse to soldering here is a solution which I guarantee
will be less expensive that anything Elecraft can or will produce. No
fancy Auxbus, no standing on one leg and cooking your breakfast while
singing the national anthem, it's just an amplifier with RF detect or
key line PTT.

http://www.w6pql.com/2_meter_80w_all_mode_amplifier.htm

10W in 80-100W depending on how the Toshiba S-AV36 is biased.

On 9/21/2015 5:12 PM, Gary wrote:
> Uncle Phil,
>
> Absolutely.
>
> I am contemplating purchasing a clean 2m amp to give me 100w 
output from a 2m internal transverter in my K3.

> I would get on that pre-order list from day one.
> I hope Eric & Wayne will do this.
> Gary



73, Ed - KL7UW
http://www.kl7uw.com
"Kits made by KL7UW"
Dubus Mag business:
dubus...@gmail.com

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Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

[Bill Steffey NY9H]

 Original message 
From: Phil Hystad <phys...@mac.com> 
Date: 09/21/2015  8:06 PM  (GMT-05:00) 
To: "Richard W. Solomon" <w1...@earthlink.net> 
Cc: elecraft@mailman.qth.net 
Subject: Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier 


> On Sep 21, 2015, at 4:55 PM, Richard W. Solomon <w1...@earthlink.net> wrote:
> 
> Have you looked at Hammond boxes ? Fairly heavy aluminum.
> 
> 73, Dick, W1KSZ
> 

Yes, I have considered them.  Our local industrial supply electronics retail 
store (Vetco)  carries a selection of Hammond Boxes and I didn’t find anything 
suitable.  I also checked the Hammond Web site but again the closest match I 
could find was a bit larger than I wanted (although, if pushed into a corner I 
agree it could work).

They are heavy aluminum — cast aluminum I think.  And, this is one thing I 
didn’t like about them but I guess my reasons for not liking them were a bit 
trivial.

73, phil, K7PEH

P.S.  I should admit that the main reason I am not rushing out to build this 
W6PQL amp is because I haven’t had the spare time and I have this 
back-of-the-head thought that Elecraft would come out with a 2-meter brick 
announcement the day I finished that project.
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Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

[Kevin Stover]

If you're not averse to soldering here is a solution which I guarantee 
will be less expensive that anything Elecraft can or will produce. No 
fancy Auxbus, no standing on one leg and cooking your breakfast while 
singing the national anthem, it's just an amplifier with RF detect or 
key line PTT.


http://www.w6pql.com/2_meter_80w_all_mode_amplifier.htm

10W in 80-100W depending on how the Toshiba S-AV36 is biased.


On 9/21/2015 5:12 PM, Gary wrote:

Uncle Phil,

Absolutely.

I am contemplating purchasing a clean 2m amp to give me 100w output from a 2m 
internal transverter in my K3.
I would get on that pre-order list from day one.
I hope Eric & Wayne will do this.
Gary



--
R. Kevin Stover
AC0H
ARRL
FISTS #11993
SKCC #215
NAQCC #3441

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Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

[Phil Hystad]

> On Sep 21, 2015, at 4:55 PM, Richard W. Solomon  wrote:
> 
> Have you looked at Hammond boxes ? Fairly heavy aluminum.
> 
> 73, Dick, W1KSZ
> 

Yes, I have considered them.  Our local industrial supply electronics retail 
store (Vetco)  carries a selection of Hammond Boxes and I didn’t find anything 
suitable.  I also checked the Hammond Web site but again the closest match I 
could find was a bit larger than I wanted (although, if pushed into a corner I 
agree it could work).

They are heavy aluminum — cast aluminum I think.  And, this is one thing I 
didn’t like about them but I guess my reasons for not liking them were a bit 
trivial.

73, phil, K7PEH

P.S.  I should admit that the main reason I am not rushing out to build this 
W6PQL amp is because I haven’t had the spare time and I have this 
back-of-the-head thought that Elecraft would come out with a 2-meter brick 
announcement the day I finished that project.
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Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

[KarlErb]

Great question, Phil.  Count me in, especially if it's a kit.

Karl
W3BF

Karl Erb
5253 Strathmore Ave
Kensington, MD 20895
301 456 6212

> On Sep 21, 2015, at 5:58 PM, Phil Hystad  wrote:
> 
> I am curious — how much interest is there in a 2-meter, solid-state, 
> amplifier from Elecraft that could be used with either the KX3 or the K3.
> 73, phil, K7PEH
> 
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Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

[Phil Hystad]

Kevin,

Yes, I know of W6PQL.  In fact, on my first version of the message I posted, I 
made a few comments about the 80-watt 2-meter amp.  But, I thought that would 
be too much in one message so I did not include it.

I was planning to build the W6PQL 80-watt amp and was already to order the 
commercial PCB fitted out with the SMT parts which is still a good deal.  But, 
and this was the thing that stopped me, I could not find a descent utility 
cabinet for the amp.  W6PQL lists instructions and templates for making your 
own but I have tried that before.  Without a bending brake it gets really 
sloppy in forming the box.  I can cut the right gauge aluminum no problem.  I 
even looked into buying those little corner bracket things that Elecraft uses 
in their kits for joining two sides at 90-degrees.  But, it would have cost 
almost $50 for those alone (Elecraft charges pretty pennies, lots of them, for 
those parts).

I am still on a half-way hunt for a good box.  I have even scoured the local 
ham-fests this year looking for something that might work well without too much 
trouble — didn’t find anything.  The boxes that are offered by various 
electronic parts suppliers just don’t seem suitable — they would be a very last 
resort.

73, phil, K7PEH


> On Sep 21, 2015, at 3:43 PM, Kevin Stover  wrote:
> 
> If you're not averse to soldering here is a solution which I guarantee will 
> be less expensive that anything Elecraft can or will produce. No fancy 
> Auxbus, no standing on one leg and cooking your breakfast while singing the 
> national anthem, it's just an amplifier with RF detect or key line PTT.
> 
> http://www.w6pql.com/2_meter_80w_all_mode_amplifier.htm
> 
> 10W in 80-100W depending on how the Toshiba S-AV36 is biased.
> 
> 
> On 9/21/2015 5:12 PM, Gary wrote:
>> Uncle Phil,
>> 
>> Absolutely.
>> 
>> I am contemplating purchasing a clean 2m amp to give me 100w output from a 
>> 2m internal transverter in my K3.
>> I would get on that pre-order list from day one.
>> I hope Eric & Wayne will do this.
>> Gary
> 
> 
> -- 
> R. Kevin Stover
> AC0H
> ARRL
> FISTS #11993
> SKCC #215
> NAQCC #3441
> 
> __
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Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

[Mel Farrer via Elecraft]

No you are not asking too much, but consider the market of used ones around 
since the 1970's.

Come on guys, its a BRICK.  Once powered up and mode switch selected it sits in 
the closet, or under the car seat.  Lots of competition and low ball prices 
including the used ones.  Now if it had bells and whistles, maybe.  Mine is a 5 
in 140 out used one for <$100 sits behind the rear sit with the shortest run of 
coax to the antenna.  No I don't use it portable.  So, no thanks for me.  

Mel, K6KBE

 

 From: hsherriff <hsherr...@reagan.com>
 To: Phil Hystad <phys...@mac.com>; Elecraft Reflector 
<Elecraft@mailman.qth.net> 
 Sent: Monday, September 21, 2015 3:05 PM
 Subject: Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier
   

    
I think it's a great idea.
Harlan NC3C 


Sent from my Verizon Wireless 4G LTE smartphone

 Original message 
From: Phil Hystad <phys...@mac.com> 
Date: 09/21/2015  5:58 PM  (GMT-05:00) 
To: Elecraft Reflector <Elecraft@mailman.qth.net> 
Subject: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier 

I am curious — how much interest is there in a 2-meter, solid-state, amplifier 
from Elecraft that could be used with either the KX3 or the K3.

I own a KX3 with the 2-meter option and I have considered buying a 2-meter 
amplifier in the 35 to 90 watt power range (or, something close to that).  But, 
I would rather have an Elecraft product.  Do others feel the same way or am I 
wanting too much?


73, phil, K7PEH

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Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

[Phil Wheeler]

Kevin,

At the link shown earlier there is this info: " 
Drawings for making the chassis parts are here: 
front panel 
<http://www.w6pql.com/2m/80w-amp/photo-07.jpg> 
rear panel 
<http://www.w6pql.com/2m/80w-amp/photo-08.jpg> 
bottom 
<http://www.w6pql.com/2m/80w-amp/photo-09.jpg>cover <http://www.w6pql.com/2m/80w-amp/photo-09.jpg>. 
For heat sink material, a heat sink with a base 
thickness of .300 or better should be used. The 
size of the one I used was 8" long x 5.375" wide."


Not my cup of tea; not into 2 m from my location 
(was 20 years ago, and broke my pick due to poor 
location).


73, Phil W7OX

On 9/21/15 4:13 PM, Kevin Stover wrote:

It was a QST article back in 2013 I think.
I re-read the webpage and don't see a reference 
to a case and there are some connectors an LED's 
he doesn't supply. You'll have to root around on 
his parts page to see for sure. $90 for a 
populated board sans the case and some 
connectors can't be beat with a big stick.



On 9/21/2015 5:53 PM, Harry Yingst wrote:
I saw those before but does he have it as a 
100% complete Kit?


(all grilled and stenciled case as well)



 


*From:* Kevin Stover <kevin.sto...@mediacombb.net>
*To:* elecraft@mailman.qth.net
*Sent:* Monday, September 21, 2015 6:43 PM
*Subject:* Re: [Elecraft] KX3 (or, K3) 2-meter 
solid-state amplifier


If you're not averse to soldering here is a 
solution which I guarantee
will be less expensive that anything Elecraft 
can or will produce. No
fancy Auxbus, no standing on one leg and 
cooking your breakfast while
singing the national anthem, it's just an 
amplifier with RF detect or

key line PTT.

http://www.w6pql.com/2_meter_80w_all_mode_amplifier.htm 



10W in 80-100W depending on how the Toshiba 
S-AV36 is biased.







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Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

[Kevin Stover]

I think I read in one of the higher power amps write up that he uses a 
company called http://www.frontpanelexpress.com/ to make his cabinets. 
I'll bet it's like PCB express.


On 9/21/2015 6:21 PM, Phil Wheeler wrote:

Kevin,

At the link shown earlier there is this info: " Drawings for making 
the chassis parts are here: front panel 
 rear panel 
 bottom 
cover 
. For heat sink 
material, a heat sink with a base thickness of .300 or better should 
be used. The size of the one I used was 8" long x 5.375" wide."


Not my cup of tea; not into 2 m from my location (was 20 years ago, 
and broke my pick due to poor location).


73, Phil W7OX




--
R. Kevin Stover
AC0H
ARRL
FISTS #11993
SKCC #215
NAQCC #3441

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Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

[Kevin Stover]

It was a QST article back in 2013 I think.
I re-read the webpage and don't see a reference to a case and there are 
some connectors an LED's he doesn't supply. You'll have to root around 
on his parts page to see for sure. $90 for a populated board sans the 
case and some connectors can't be beat with a big stick.



On 9/21/2015 5:53 PM, Harry Yingst wrote:

I saw those before but does he have it as a 100% complete Kit?

(all grilled and stenciled case as well)




*From:* Kevin Stover <kevin.sto...@mediacombb.net>
*To:* elecraft@mailman.qth.net
*Sent:* Monday, September 21, 2015 6:43 PM
*Subject:* Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

If you're not averse to soldering here is a solution which I guarantee
will be less expensive that anything Elecraft can or will produce. No
fancy Auxbus, no standing on one leg and cooking your breakfast while
singing the national anthem, it's just an amplifier with RF detect or
key line PTT.

http://www.w6pql.com/2_meter_80w_all_mode_amplifier.htm

10W in 80-100W depending on how the Toshiba S-AV36 is biased.




--
R. Kevin Stover
AC0H
ARRL
FISTS #11993
SKCC #215
NAQCC #3441

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Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

[Phil Hystad]

Kevin,

I also learned about the use of Front Panel Express from some e-mail exchanges 
with Jim (W6PQL).  I then discovered that they are local to the Seattle area 
(my QTH is Kirkland, in the Seattle region).  In fact, they are a couple of 
doors down from the Woodcraft Store in south Seattle.  Since my woodworking 
hobby regularly takes me to Woodcraft I dropped by their location on one of my 
trips.  But, it is not a retail office — I think they do almost all of their 
interaction via the web.

But, expensive!  I costed out a small cabinet fitting to the 2-meter amp and it 
was about $100 or so.  They are set up to do dozens or 100s of copies from a 
single design.  They do sell raw material though in good sizes for making your 
own box and this is what led me into looking at the 90-degree corner brackets 
that Elecraft uses but charges quite a bit for them.

73, phil, K7PEH


> On Sep 21, 2015, at 4:40 PM, Kevin Stover  wrote:
> 
> I think I read in one of the higher power amps write up that he uses a 
> company called http://www.frontpanelexpress.com/ to make his cabinets. I'll 
> bet it's like PCB express.
> 
> On 9/21/2015 6:21 PM, Phil Wheeler wrote:
>> Kevin,
>> 
>> At the link shown earlier there is this info: " Drawings for making the 
>> chassis parts are here: front panel 
>>  rear panel 
>>  bottom 
>> cover 
>> . For heat sink material, a 
>> heat sink with a base thickness of .300 or better should be used. The size 
>> of the one I used was 8" long x 5.375" wide."
>> 
>> Not my cup of tea; not into 2 m from my location (was 20 years ago, and 
>> broke my pick due to poor location).
>> 
>> 73, Phil W7OX
>> 
> 
> 
> -- 
> R. Kevin Stover
> AC0H
> ARRL
> FISTS #11993
> SKCC #215
> NAQCC #3441
> 
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Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

[Richard W. Solomon]

It looks like the Hammond 1590X might do. 

As for cast Aluminum, I like the idea of more mass to conduct heat.
Should be easy to attach a heat sink to it.

73, Dick, W1KSZ

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Phil 
Hystad
Sent: Monday, September 21, 2015 4:59 PM
To: Kevin Stover
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

Kevin,

I also learned about the use of Front Panel Express from some e-mail exchanges 
with Jim (W6PQL).  I then discovered that they are local to the Seattle area 
(my QTH is Kirkland, in the Seattle region).  In fact, they are a couple of 
doors down from the Woodcraft Store in south Seattle.  Since my woodworking 
hobby regularly takes me to Woodcraft I dropped by their location on one of my 
trips.  But, it is not a retail office — I think they do almost all of their 
interaction via the web.

But, expensive!  I costed out a small cabinet fitting to the 2-meter amp and it 
was about $100 or so.  They are set up to do dozens or 100s of copies from a 
single design.  They do sell raw material though in good sizes for making your 
own box and this is what led me into looking at the 90-degree corner brackets 
that Elecraft uses but charges quite a bit for them.

73, phil, K7PEH


> On Sep 21, 2015, at 4:40 PM, Kevin Stover <kevin.sto...@mediacombb.net> wrote:
> 
> I think I read in one of the higher power amps write up that he uses a 
> company called http://www.frontpanelexpress.com/ to make his cabinets. I'll 
> bet it's like PCB express.
> 
> On 9/21/2015 6:21 PM, Phil Wheeler wrote:
>> Kevin,
>> 
>> At the link shown earlier there is this info: " Drawings for making the 
>> chassis parts are here: front panel 
>> <http://www.w6pql.com/2m/80w-amp/photo-07.jpg> rear panel 
>> <http://www.w6pql.com/2m/80w-amp/photo-08.jpg> bottom 
>> <http://www.w6pql.com/2m/80w-amp/photo-09.jpg>cover 
>> <http://www.w6pql.com/2m/80w-amp/photo-09.jpg>. For heat sink material, a 
>> heat sink with a base thickness of .300 or better should be used. The size 
>> of the one I used was 8" long x 5.375" wide."
>> 
>> Not my cup of tea; not into 2 m from my location (was 20 years ago, and 
>> broke my pick due to poor location).
>> 
>> 73, Phil W7OX
>> 
> 
> 
> --
> R. Kevin Stover
> AC0H
> ARRL
> FISTS #11993
> SKCC #215
> NAQCC #3441
> 
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> list: http://www.qsl.net/donate.html Message delivered to 
> phys...@mac.com

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[Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

[Phil Hystad]

I am curious — how much interest is there in a 2-meter, solid-state, amplifier 
from Elecraft that could be used with either the KX3 or the K3.

I own a KX3 with the 2-meter option and I have considered buying a 2-meter 
amplifier in the 35 to 90 watt power range (or, something close to that).  But, 
I would rather have an Elecraft product.  Do others feel the same way or am I 
wanting too much?


73, phil, K7PEH

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Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

[hsherriff]

I think it's a great idea.
Harlan NC3C 


Sent from my Verizon Wireless 4G LTE smartphone

 Original message 
From: Phil Hystad <phys...@mac.com> 
Date: 09/21/2015  5:58 PM  (GMT-05:00) 
To: Elecraft Reflector <Elecraft@mailman.qth.net> 
Subject: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier 

I am curious — how much interest is there in a 2-meter, solid-state, amplifier 
from Elecraft that could be used with either the KX3 or the K3.

I own a KX3 with the 2-meter option and I have considered buying a 2-meter 
amplifier in the 35 to 90 watt power range (or, something close to that).  But, 
I would rather have an Elecraft product.  Do others feel the same way or am I 
wanting too much?


73, phil, K7PEH

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Re: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

[Gary]

Uncle Phil,

Absolutely.

I am contemplating purchasing a clean 2m amp to give me 100w output from a 2m 
internal transverter in my K3.
I would get on that pre-order list from day one.
I hope Eric & Wayne will do this.
Gary 

-Original Message-
From: "Phil Hystad" <phys...@mac.com>
Sent: ‎22/‎09/‎2015 7:59 AM
To: "Elecraft Reflector" <Elecraft@mailman.qth.net>
Subject: [Elecraft] KX3 (or, K3) 2-meter solid-state amplifier

I am curious — how much interest is there in a 2-meter, solid-state, amplifier 
from Elecraft that could be used with either the KX3 or the K3.

I own a KX3 with the 2-meter option and I have considered buying a 2-meter 
amplifier in the 35 to 90 watt power range (or, something close to that).  But, 
I would rather have an Elecraft product.  Do others feel the same way or am I 
wanting too much?


73, phil, K7PEH

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