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Looking for a KPA500 Schematic

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Jerry

Looking for a KPA500 Schematic

Good morning,

It looks like my KPA500 has gone down for the count. Is there a schematic
available for this amplifier/

Best regards,

Jerry, W1IE

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Phil Hystad-3

Re: Looking for a KPA500 Schematic

Jerry,

You might try my tested and very successful method of working on Elecraft gear.

1. Open up the cabinet (top and bottom).
2. Observe the components inside, looking at each one, contemplating issues,
and possible problems.
3. Place the cabinet back together.
4. Ship off to Elecraft.

Works every time. Of course, there are other techniques I have heard about involving
some variant of home surgery methods.

Good luck,

73, phil, K7PEH

> On Mar 27, 2015, at 8:18 AM, Jerry Knowlton <[hidden email]> wrote:
>
> Good morning,
>
>
>
> It looks like my KPA500 has gone down for the count. Is there a schematic
> available for this amplifier/
>
>
>
> Best regards,
>
>
>
> Jerry, W1IE
>
> ______________________________________________________________
> 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]

Elecraft mailing list

Re: Looking for a KPA500 Schematic

I also would like the schematic

My NEW KPA500 also just failed today

From: Phil Hystad <[hidden email]>
To: Jerry Knowlton <[hidden email]>
Cc: [hidden email]
Sent: Friday, March 27, 2015 12:07 PM
Subject: Re: [Elecraft] Looking for a KPA500 Schematic

Jerry,

You might try my tested and very successful method of working on Elecraft gear.

1. Open up the cabinet (top and bottom).
2. Observe the components inside, looking at each one, contemplating issues,
and possible problems.
3. Place the cabinet back together.
4. Ship off to Elecraft.

Works every time. Of course, there are other techniques I have heard about involving
some variant of home surgery methods.

Good luck,

73, phil, K7PEH

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Scott Manthe-2

Re: Looking for a KPA500 Schematic

Why would you want a schematic? If it's new, Elecraft will fix it free.
I'm all for being able to troubleshoot my gear, but if I buy something
new and it fails within the warranty period, I'm not going to waste my
time trying to fix it, the manufacturer will.

73,
Scott, N9AA

On 3/27/15 12:44 PM, Harry Yingst via Elecraft wrote:

> I also would like the schematic
>
> My NEW KPA500 also just failed today
>
>
>
>
>
> From: Phil Hystad <[hidden email]>
> To: Jerry Knowlton <[hidden email]>
> Cc: [hidden email]
> Sent: Friday, March 27, 2015 12:07 PM
> Subject: Re: [Elecraft] Looking for a KPA500 Schematic
>
> Jerry,
>
> You might try my tested and very successful method of working on Elecraft gear.
>
> 1. Open up the cabinet (top and bottom).
> 2. Observe the components inside, looking at each one, contemplating issues,
> and possible problems.
> 3. Place the cabinet back together.
> 4. Ship off to Elecraft.
>
> Works every time. Of course, there are other techniques I have heard about involving
> some variant of home surgery methods.
>
> Good luck,
>
> 73, phil, K7PEH
>
>
>

Grant Youngman

Re: Looking for a KPA500 Schematic

This is very similar to the "car quits on the road" diagnostic technique. The first step is to pull off the road. Step 2 is to open the hood and stare at the engine. Look everywhere. Look at it very carefully. Is it still there? If the answer is yes, step 3 is to call AAA.

:)

>>
>> You might try my tested and very successful method of working on Elecraft gear.
>>
>> 1. Open up the cabinet (top and bottom).
>> 2. Observe the components inside, looking at each one, contemplating issues,
>> and possible problems.
>> 3. Place the cabinet back together.
>> 4. Ship off to Elecraft.
>>
>>

Phil Wheeler-2

Re: Looking for a KPA500 Schematic

In reply to this post by Phil Hystad-3

Good advice, Phil

73, Phil W7OX

On 3/27/15 9:07 AM, Phil Hystad wrote:

> Jerry,
>
> You might try my tested and very successful method of working on Elecraft gear.
>
> 1. Open up the cabinet (top and bottom).
> 2. Observe the components inside, looking at each one, contemplating issues,
> and possible problems.
> 3. Place the cabinet back together.
> 4. Ship off to Elecraft.
>
> Works every time. Of course, there are other techniques I have heard about involving
> some variant of home surgery methods.
>
> Good luck,
>
> 73, phil, K7PEH
>
>
>> On Mar 27, 2015, at 8:18 AM, Jerry Knowlton <[hidden email]> wrote:
>>
>> Good morning,
>>
>>
>>
>> It looks like my KPA500 has gone down for the count. Is there a schematic
>> available for this amplifier/
>>
>>
>>
>> Best regards,
>>
>>
>>
>> Jerry, W1IE
>>
>> ______________________________________________________________
>> 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]
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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> Post: mailto:[hidden email]
>
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> Message delivered to [hidden email]
>

Bill-3

Re: Looking for a KPA500 Schematic

In reply to this post by Grant Youngman

A simple enough request - yet such nasty and unhelpful responses. Are
they really necessary?

And, yes...... schematics should be available for ALL ham equipment. In
fact, they should accompany all ham equipment when purchased.

Bill W2BLC K-Line
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Rick Stealey

Re: Looking for a KPA500 Schematic

In reply to this post by Jerry

I think the answer as to why an owner would want a schematic is given to us by the slogan, "Elecraft - Hands on Ham Radio"Simple as that.
Rick K2XT

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GM4JJJ

Re: Looking for a KPA500 Schematic

In reply to this post by Scott Manthe-2

Lots of people like to have an understanding of what is under the hood, whether they can fix it or not. ;-)

BTW it isn't that hard to find a copy on the Internet, I am rather surprised Elecraft don't supply them with the amplifiers, it never crossed my mind that they wouldn't.

73

David Anderson GM4JJJ

> On 27 Mar 2015, at 17:40, Scott Manthe <[hidden email]> wrote:
>
> Why would you want a schematic? If it's new, Elecraft will fix it free. I'm all for being able to troubleshoot my gear, but if I buy something new and it fails within the warranty period, I'm not going to waste my time trying to fix it, the manufacturer will.
>
> 73,
> Scott, N9AA
>
>
>> On 3/27/15 12:44 PM, Harry Yingst via Elecraft wrote:
>> I also would like the schematic
>>
>> My NEW KPA500 also just failed today
>>
>>
>>
>>
>> From: Phil Hystad <[hidden email]>
>> To: Jerry Knowlton <[hidden email]>
>> Cc: [hidden email]
>> Sent: Friday, March 27, 2015 12:07 PM
>> Subject: Re: [Elecraft] Looking for a KPA500 Schematic
>> Jerry,
>>
>> You might try my tested and very successful method of working on Elecraft gear.
>>
>> 1. Open up the cabinet (top and bottom).
>> 2. Observe the components inside, looking at each one, contemplating issues,
>> and possible problems.
>> 3. Place the cabinet back together.
>> 4. Ship off to Elecraft.
>>
>> Works every time. Of course, there are other techniques I have heard about involving
>> some variant of home surgery methods.
>>
>> Good luck,
>>
>> 73, phil, K7PEH
>
> ______________________________________________________________
> 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]

Thomas Taylor-2

Re: Looking for a KPA500 Schematic

In reply to this post by Grant Youngman

On Fri, 27 Mar 2015 12:53:33 -0500
Grant Youngman <[hidden email]> wrote:

> This is very similar to the "car quits on the road" diagnostic technique. The
> first step is to pull off the road. Step 2 is to open the hood and stare at
> the engine. Look everywhere. Look at it very carefully. Is it still there?
> If the answer is yes, step 3 is to call AAA.
>
> :)
>
> >>
> >> You might try my tested and very successful method of working on Elecraft
> >> gear.
> >>
> >> 1. Open up the cabinet (top and bottom).
> >> 2. Observe the components inside, looking at each one, contemplating
> >> issues, and possible problems.
> >> 3. Place the cabinet back together.
> >> 4. Ship off to Elecraft.
> >>
> >>
> ______________________________________________________________
> 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]

And when the warranty expires wouldn't it be beneficial to have a schematic?

Would someone PLEASE just point us to a location where we can d/l the schematic.

73 & thanks, Tom KG7CFC

--
You don't get to choose how you're going to die, or when. You can decide how
you're going to live now.
-Joan Baez

^^ --... ...-- / -.- --. --... -.-. ..-. -.-.

^^^^
Tom Taylor KG7CFC
openSUSE 13.1 (64-bit), Kernel 3.11.6-4-default,
KDE 4.11.2, AMD Phenom X4 955, GeForce GTX 550 Ti (Nvidia 337.19)
16GB RAM -- 3x1.5TB sata2 -- 128GB-SSD
FF 36.0, claws-mail 3.10.1
registered linux user 263467

--
You don't get to choose how you're going to die, or when. You can decide how
you're going to live now.
-Joan Baez

^^ --... ...-- / -.- --. --... -.-. ..-. -.-.

^^^^
Tom Taylor KG7CFC
openSUSE 13.1 (64-bit), Kernel 3.11.6-4-default,
KDE 4.11.2, AMD Phenom X4 955, GeForce GTX 550 Ti (Nvidia 337.19)
16GB RAM -- 3x1.5TB sata2 -- 128GB-SSD
FF 36.0, claws-mail 3.10.1
registered linux user 263467
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Wes (N7WS)

Re: Looking for a KPA500 Schematic

In reply to this post by Scott Manthe-2

Unbelievable.

On 3/27/2015 10:40 AM, Scott Manthe wrote:
> Why would you want a schematic? If it's new, Elecraft will fix it free. I'm
> all for being able to troubleshoot my gear, but if I buy something new and it
> fails within the warranty period, I'm not going to waste my time trying to fix
> it, the manufacturer will.
>
> 73,
> Scott, N9AA
>

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Johnny Siu

Looking for a KPA500 Schematic

In reply to this post by Bill-3

Bill,
You are correct. The schematics should simply be available for download in the elecraft official website.
73
Johnny VR2XMC
寄件人︰ Bill <[hidden email]>
收件人︰ [hidden email]
傳送日期︰ 2015年03月28日 (週六) 3:45 AM
主題︰ Re: [Elecraft] Looking for a KPA500 Schematic

A simple enough request - yet such nasty and unhelpful responses. Are
they really necessary?

And, yes...... schematics should be available for ALL ham equipment. In
fact, they should accompany all ham equipment when purchased.

Bill W2BLC K-Line

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Scott Manthe-2

Re: Looking for a KPA500 Schematic

In reply to this post by Wes (N7WS)

Apparently there is some misunderstanding regarding my comment (Or
people are responding without reading the entire message closely...). I
was NOT responding to the original poster. I was responding to the
second commenter, who said that he needed a schematic because his NEW
KPA500 had failed. My point was that rather than risk further damaging a
NEW, still under warranty KPA500, why not simply let Elecraft fix it.
I'm not sure why it's "unbelievable" that I'd send my NEW amp to
Elecraft for repair, but to each his or her own.

I wasn't suggesting that no one needs a schematic, just that it probably
wasn't the most necessary in that particular situation, where a piece of
gear was NEW and under warranty. A supplied schematic would be nice,
especially given that the skill level of the average Elecrafter might be
somewhat higher than the average ham.

73,
Scott, N9AA

On 3/27/15 10:53 PM, Wes (N7WS) wrote:

> Unbelievable.
>
> On 3/27/2015 10:40 AM, Scott Manthe wrote:
>> Why would you want a schematic? If it's new, Elecraft will fix it
>> free. I'm all for being able to troubleshoot my gear, but if I buy
>> something new and it fails within the warranty period, I'm not going
>> to waste my time trying to fix it, the manufacturer will.
>>
>> 73,
>> Scott, N9AA
>>
>
>

Johnny Siu

Looking for a KPA500 Schematic

Hello Scott,
I suggest we should also put in a suggestion "Contact [hidden email] "

Shipping of the entire amplifier could be expensive. The merit of elecraft products are their module design which is very good for overseas user. I simply ship back the defective module instead of the whole machine.
Perhaps, elecraft support could give a schematic to the interested kpa500 owners.
73
Johnny VR2XMC 寄件人︰ Scott Manthe <[hidden email]>
收件人︰ [hidden email]
傳送日期︰ 2015年03月29日 (週日) 8:37 AM
主題︰ Re: [Elecraft] Looking for a KPA500 Schematic

Apparently there is some misunderstanding regarding my comment (Or
people are responding without reading the entire message closely...). I
was NOT responding to the original poster. I was responding to the
second commenter, who said that he needed a schematic because his NEW
KPA500 had failed. My point was that rather than risk further damaging a
NEW, still under warranty KPA500, why not simply let Elecraft fix it.
I'm not sure why it's "unbelievable" that I'd send my NEW amp to
Elecraft for repair, but to each his or her own.

I wasn't suggesting that no one needs a schematic, just that it probably
wasn't the most necessary in that particular situation, where a piece of
gear was NEW and under warranty. A supplied schematic would be nice,
especially given that the skill level of the average Elecrafter might be
somewhat higher than the average ham.

73,
Scott, N9AA

On 3/27/15 10:53 PM, Wes (N7WS) wrote:

Wes (N7WS)

Re: Looking for a KPA500 Schematic

In reply to this post by Scott Manthe-2

I don't believe that there is a "misunderstanding" at all. The FCC rules state,
among other things:

§ 97.1 Basis and purpose.
The rules and regulations in this part are designed to provide an amateur radio
service having a fundamental purpose as expressed in
the following principles:
(a) Recognition and enhancement of the value of the amateur service to the
public as a voluntary noncommercial communication
service, particularly with respect to providing emergency communications.
(b) Continuation and extension of the amateur's proven ability to contribute to
the _advancement of the radio art._
(c) Encouragement and improvement of the amateur service through rules which
provide for advancing skills in both the communication
and _technical phases of the art._
(d) Expansion of the existing reservoir within the amateur radio service of
trained operators, _technicians, and electronics experts.__
_
How does all of this fit with having a failure and rather than troubleshooting
that failure first and possibly fixing it simply (i.e a cold solder joint),
boxing up the radio and shipping it off to the factory for repair, so as to
"avoid further damage?"

At the rate this hobby is going downhill I can envision the day when radios are
returned to the factory to get a blown fuse changed.

On 3/28/2015 5:37 PM, Scott Manthe wrote:

> Apparently there is some misunderstanding regarding my comment (Or people are
> responding without reading the entire message closely...). I was NOT
> responding to the original poster. I was responding to the second commenter,
> who said that he needed a schematic because his NEW KPA500 had failed. My
> point was that rather than risk further damaging a NEW, still under warranty
> KPA500, why not simply let Elecraft fix it. I'm not sure why it's
> "unbelievable" that I'd send my NEW amp to Elecraft for repair, but to each
> his or her own.
>
> I wasn't suggesting that no one needs a schematic, just that it probably
> wasn't the most necessary in that particular situation, where a piece of gear
> was NEW and under warranty. A supplied schematic would be nice, especially
> given that the skill level of the average Elecrafter might be somewhat higher
> than the average ham.
>
> 73,
> Scott, N9AA
>
>
> On 3/27/15 10:53 PM, Wes (N7WS) wrote:
>> Unbelievable.
>>
>> On 3/27/2015 10:40 AM, Scott Manthe wrote:
>>> Why would you want a schematic? If it's new, Elecraft will fix it free. I'm
>>> all for being able to troubleshoot my gear, but if I buy something new and
>>> it fails within the warranty period, I'm not going to waste my time trying
>>> to fix it, the manufacturer will.
>>>
>>> 73,
>>> Scott, N9AA
>>>
>>

Gary Gregory-2

Re: Looking for a KPA500 Schematic

In reply to this post by Johnny Siu

Has anybody asked Elecraft support for a schematic?

Cannot imagine they would say no.

Just sayin...........

73

Gary
Vk1ZZ
K3, KPA500-FT, KAT500-FT
On 29/03/2015 11:03 AM, "Johnny Siu" <[hidden email]> wrote:

> Hello Scott,
> I suggest we should also put in a suggestion "Contact [hidden email]
> "
>
> Shipping of the entire amplifier could be expensive. The merit of
> elecraft products are their module design which is very good for overseas
> user. I simply ship back the defective module instead of the whole machine.
> Perhaps, elecraft support could give a schematic to the interested kpa500
> owners.
> 73
> Johnny VR2XMC 寄件人︰ Scott Manthe <[hidden email]>
> 收件人︰ [hidden email]
> 傳送日期︰ 2015年03月29日 (週日) 8:37 AM
> 主題︰ Re: [Elecraft] Looking for a KPA500 Schematic
>
> Apparently there is some misunderstanding regarding my comment (Or
> people are responding without reading the entire message closely...). I
> was NOT responding to the original poster. I was responding to the
> second commenter, who said that he needed a schematic because his NEW
> KPA500 had failed. My point was that rather than risk further damaging a
> NEW, still under warranty KPA500, why not simply let Elecraft fix it.
> I'm not sure why it's "unbelievable" that I'd send my NEW amp to
> Elecraft for repair, but to each his or her own.
>
> I wasn't suggesting that no one needs a schematic, just that it probably
> wasn't the most necessary in that particular situation, where a piece of
> gear was NEW and under warranty. A supplied schematic would be nice,
> especially given that the skill level of the average Elecrafter might be
> somewhat higher than the average ham.
>
> 73,
> Scott, N9AA
>
>
>
>
> On 3/27/15 10:53 PM, Wes (N7WS) wrote:
> > Unbelievable.
> >
> > On 3/27/2015 10:40 AM, Scott Manthe wrote:
> >> Why would you want a schematic? If it's new, Elecraft will fix it
> >> free. I'm all for being able to troubleshoot my gear, but if I buy
> >> something new and it fails within the warranty period, I'm not going
> >> to waste my time trying to fix it, the manufacturer will.
> >>
> >> 73,
> >> Scott, N9AA
>
>
> ______________________________________________________________
> 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]

mcduffie

Re: Looking for a KPA500 Schematic

In reply to this post by Jerry

> Has anybody asked Elecraft support for a schematic?

I was about to ask the same thing. This thread is just plain silly. When I got
my KPA, I simply called them up and asked for one. They obliged. So simple. I
do happen to agree that it should have been provided in the package though.

Gary
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Harlan Sherriff

Re: Looking for a KPA500 Schematic

In reply to this post by Jerry

There is a set of 17 pages pdf that can be downloaded from www.mods.dk
No idea how old it is ...

Harlan
NC3C

Sent from my Verizon Wireless 4G LTE smartphone

<div>-------- Original message --------</div><div>From: Gary Gregory <[hidden email]> </div><div>Date:03/28/2015 10:06 PM (GMT-05:00) </div><div>To: Johnny Siu <[hidden email]> </div><div>Cc: Elecraft List <[hidden email]> </div><div>Subject: Re: [Elecraft] Looking for a KPA500 Schematic </div><div>
</div>Has anybody asked Elecraft support for a schematic?

Cannot imagine they would say no.

Just sayin...........

73

Gary
Vk1ZZ
K3, KPA500-FT, KAT500-FT
On 29/03/2015 11:03 AM, "Johnny Siu" <[hidden email]> wrote:

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Elecraft mailing list

Re: Looking for a KPA500 Schematic - Issue Resolved

In reply to this post by mcduffie

I have the schematic, Thank you to all who responded to me.I wanted to do some troubleshooting before calling Elecraft.

Elecraft is taking care of the issue and I'm all set.

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Yngvi (TF3Y)

Re: Looking for a KPA500 Schematic

In reply to this post by Jerry

I believe I saw a pdf diagram for the KPA500 on the elecraft yahoo group in
the Files area a while back.

73, Yngvi TF3Y

On Sun, Mar 29, 2015 at 2:25 AM, hsherriff <[hidden email]> wrote:

> There is a set of 17 pages pdf that can be downloaded from www.mods.dk
> No idea how old it is ...
>
> Harlan
> NC3C
>
>
> Sent from my Verizon Wireless 4G LTE smartphone
>
> <div>-------- Original message --------</div><div>From: Gary Gregory <
> [hidden email]> </div><div>Date:03/28/2015 10:06 PM (GMT-05:00)
> </div><div>To: Johnny Siu <[hidden email]> </div><div>Cc: Elecraft
> List <[hidden email]> </div><div>Subject: Re: [Elecraft]
> Looking for a KPA500 Schematic </div><div>
> </div>Has anybody asked Elecraft support for a schematic?
>
> Cannot imagine they would say no.
>
> Just sayin...........
>
> 73
>
> Gary
> Vk1ZZ
> K3, KPA500-FT, KAT500-FT
> On 29/03/2015 11:03 AM, "Johnny Siu" <[hidden email]> wrote:
>
> > Hello Scott,
> > I suggest we should also put in a suggestion "Contact
> [hidden email]
> > "
> >
> > Shipping of the entire amplifier could be expensive. The merit of
> > elecraft products are their module design which is very good for overseas
> > user. I simply ship back the defective module instead of the whole
> machine.
> > Perhaps, elecraft support could give a schematic to the interested kpa500
> > owners.
> > 73
> > Johnny VR2XMC 寄件人︰ Scott Manthe <[hidden email]>
> > 收件人︰ [hidden email]
> > 傳送日期︰ 2015年03月29日 (週日) 8:37 AM
> > 主題︰ Re: [Elecraft] Looking for a KPA500 Schematic
> >
> > Apparently there is some misunderstanding regarding my comment (Or
> > people are responding without reading the entire message closely...). I
> > was NOT responding to the original poster. I was responding to the
> > second commenter, who said that he needed a schematic because his NEW
> > KPA500 had failed. My point was that rather than risk further damaging a
> > NEW, still under warranty KPA500, why not simply let Elecraft fix it.
> > I'm not sure why it's "unbelievable" that I'd send my NEW amp to
> > Elecraft for repair, but to each his or her own.
> >
> > I wasn't suggesting that no one needs a schematic, just that it probably
> > wasn't the most necessary in that particular situation, where a piece of
> > gear was NEW and under warranty. A supplied schematic would be nice,
> > especially given that the skill level of the average Elecrafter might be
> > somewhat higher than the average ham.
> >
> > 73,
> > Scott, N9AA
> >
> >
> >
> >
> > On 3/27/15 10:53 PM, Wes (N7WS) wrote:
> > > Unbelievable.
> > >
> > > On 3/27/2015 10:40 AM, Scott Manthe wrote:
> > >> Why would you want a schematic? If it's new, Elecraft will fix it
> > >> free. I'm all for being able to troubleshoot my gear, but if I buy
> > >> something new and it fails within the warranty period, I'm not going
> > >> to waste my time trying to fix it, the manufacturer will.
> > >>
> > >> 73,
> > >> Scott, N9AA
> >
> >
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