[Elecraft] KPA-1500 failed!

[Mike Cox]

oops... can't type... obviously, I'm using my KPA500 and KAT500 now...

On 2/23/2019 20:13, Mike Cox wrote:
> I'm avoiding it now! My KPA1500 died for the second time since it 
> arrived last September.  I contacted service last Thursday and, per 
> request,  sent them my configuration information. Nothing has been 
> heard since.
>
> Now my "old" KPA500 and KPA500 are back in line and working fine! That 
> appears to be a good fix as they've never let me down.
>
> Mike, AB9V
>
> On 2/23/2019 18:32, Paul Baldock wrote:
>> Eric -
>>
>> I know a number of KPA1500s have been returned to you with one of the 
>> output transistors dead. Is there common source for the problem that 
>> the rest of us can try and avoid?
>>
>> regards
>>
>> - Paul
>>
>> At 10:13 AM 2/16/2019, you wrote:
>>> Hi Peter,
>>>
>>> I'm sorry to hear about this failure and deeply apologize for the 
>>> problem.
>>>
>>> I'll follow up with another email to you to diagnose what actually 
>>> happened.
>>>
>>> In any case we'll deal with it quickly and get your amp repaired asap.
>>>
>>> Eric
>>> elecraft.com
>>> _..._
>>>
>>>
>>>
>>> > On Feb 16, 2019, at 6:28 AM, <lists at w2irt.net> <lists at w2irt.net> 
>>> wrote:
>>> >
>>> > I was operating in the ARRL-CW contest this morning and on 20m, 
>>> with a 1.2:1
>>> > SWR on the Yagi, all of a sudden I saw my power drop to about 
>>> 450-500W with
>>> > about 40W in. Worked a few stations but not as easily as when I 
>>> turned
>>> > everything on this morning. Switched over to phone and made a few 
>>> contacts.
>>> > Audio is fine barefoot with 100W out of the K3s-which suffered 
>>> blown finals
>>> > itself during CQWW SSB last fall, but with the amp in I got 
>>> reports that my
>>> > audio was badly distorted.
>>> >
>>> > Before I send it in, is there anything I should look at or any 
>>> diagnostics I
>>> > can easily perform? For the cost of this, I'd have thought 
>>> protection would
>>> > have kicked in to prevent anything untoward from happening. I'm in 
>>> complete
>>> > disbelief, to be honest.
>>> >
>>> > ---------------------------------------------
>>> > 73 and Good DX
>>> > Peter, W2IRT
>>> >
>>> >
>>> >
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>>
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