Steve,
See if the DC voltage on the VFO pot wiper terminal also 'warbles' - it
may be hard to spot with a digital meter, if you have a fast reading
analog meter, use that and see if the meter needle 'wiggles'
What I am saying is that could be caused by a bad 10 turn potentiometer
- the voltage at the wiper directly controls the capacitance of the
varactors and therefore, the frequency of the VFO.
73,
Don W3FPR
w2ses wrote:
> After my K1 runs for awhile the received audio sounds wobbly and the rf
> output warbles as well. I am pretty sure there must be a voltage
> regulation issue, but before I open it up, has anyone seen this? A head
> start on the problem would be nice.
>
> 73
> Steve W2SES
> ______________________________________________________________
> 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> ------------------------------------------------------------------------
>
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 8.0.233 / Virus Database: 270.10.16/1928 - Release Date: 01/30/09 17:31:00
>
>
______________________________________________________________
Elecraft mailing list
Home:
http://mailman.qth.net/mailman/listinfo/elecraftHelp:
http://mailman.qth.net/mmfaq.htmPost: mailto:
[hidden email]
This list hosted by:
http://www.qsl.netPlease help support this email list:
http://www.qsl.net/donate.html
Locked
