[Elecraft] K2/10 Low power

[Byron Allen]

Don,

I have now done more tests and bandpass filter alignments....Don,
 As you suggested I checked all the voltages in the Elecraft manual on the
RF board. All are good...

Here is the  (MAX) power (OUT) int a dummy load on each band and I noticed
something  that was peculiar.

10m = 2 watts
12m = 2 watts
15m = 3.5 watts
17m = 4 watts
20m = 5 watts
30m = 10 watts
40m = 12 watts
80m = 12 watts
160m = 4 - 5 watts

I notice while on 40 meters that as I decrease the power setting the power
out peaks a tiny bit at he 12 oclock position to 13 watts  and doesnt start
decreasing until I get to 10 oclock and as I turn powerback up after I get
past 12 oclock the max power drops off by 1 watt.

What do I test or change next?  is my driver transistor at fault, just not
driving the finals???

Trying to get this resolved before the  CQ 160 Meter CW Contest on the
27th, need a true 5 watts during the contest and to not harm my rig during
the event.

Byron / N4AX


On Tue, Jan 3, 2017 at 7:46 AM, Byron Allen <n4axdxer at gmail.com> wrote:

> Serial # 4455
>
> What would cause the following low power after all the bandpass filters
> have been peaked?  maximum power setting
>
> 160 meters - pwr= 2 watts
> 80 mtrs-pwr= 6 watts
> 40mtrs-pwr= 7 watts
> 30mtrs-pwr= 8 watts
> 20meters-pwr=3 watts
> 17 meters-pwr =2 watts
> 15 mtrs- pwr= 3 watts
> 12 mtrs-pwr=1.5 watts
> 10mtrs-pwr 1.0 watt
>
> Byron / N4AX
>