[Elecraft] K2/100 kaputt

[Don Wilhelm]

Raimon,

If your diode voltages differ from the chart by more than 20%, that may 
indicate a problem.  The chart was created from readings on one KPA100 
which was working properly, but that KPA100 may not have been exactly 
typical (meaning component tolerances  were not checked for 
mid-tolerance values), so some variation is expected and is not an 
indication of a problem.

The oscillation possibility is an 'educated guess', so do change C31 and 
then if a problem persists, we can offer additional assistance if you 
give us data and your observations/conditions.

73,
Don W3FPR

raimon wrote:
> Dear Don
> Many thanks for your prompt reply and information.
> C31 in my KPA100 is 0.033 mf, I did not receive it with the upgrade 
> kit and I forgot to change it.
> I will try to get it from a local supplier, either .22mf, .2 mf or two 
> .1 mf as you suggest.
> Most voltage diodes readings agree with the new chart, but there are 
> still notable deviations.
> If you believe that my problem is caused by an oscillation, I will 
> wait until I can substitute C31.
> If you suspect any other reason, I will send the voltages chart again 
> in a more intelligible way.
> Many thanks again, I hope to have soon my K2/100  working again.
> 73
> EA3EZO
> Raimon
> rfuidio at telefonica.net
>