K3 sudden loss of output power

classic Classic list List threaded Threaded
2 messages Options
Reply | Threaded
Open this post in threaded view
|

K3 sudden loss of output power

Pete Smith N4ZR
I was routinely calling VK9WA on 40 when my amp suddenly started showing
only 300 watts out.  A little exploration, with the amp out of the
circuit, showed that my K3's output has fallen off to only about 30
watts on 40and 45 on 20.  It shows 85 watts on 15 but full power on 10M.
  Indicated SWR is 1-1.5:1 on all bands.

Any diagnostic ideas much appreciated!

--

73, Pete N4ZR
Download the new N1MM Logger+ at
<http://N1MM.hamdocs.com>. Check
out the Reverse Beacon Network at
<http://reversebeacon.net>, now
spotting RTTY activity worldwide.
For spots, please use your favorite
"retail" DX cluster.

______________________________________________________________
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]
Reply | Threaded
Open this post in threaded view
|

Re: K3 sudden loss of output power - solved by the power company!

Pete Smith N4ZR
How strange - we had a momentary power drop this morning, and now the
K3's power is back to normal.  Sorry for the flap.

73, Pete N4ZR
Download the new N1MM Logger+ at
<http://N1MM.hamdocs.com>. Check
out the Reverse Beacon Network at
<http://reversebeacon.net>, now
spotting RTTY activity worldwide.
For spots, please use your favorite
"retail" DX cluster.

On 11/22/2015 10:18 AM, Pete Smith N4ZR wrote:
> I was routinely calling VK9WA on 40 when my amp suddenly started
> showing only 300 watts out.  A little exploration, with the amp out of
> the circuit, showed that my K3's output has fallen off to only about
> 30 watts on 40and 45 on 20.  It shows 85 watts on 15 but full power on
> 10M.  Indicated SWR is 1-1.5:1 on all bands.
>
> Any diagnostic ideas much appreciated!
>

______________________________________________________________
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]