rd) between the board and the bumper.
> See if the BFO still drifts.
>
> If it stops, then your assumption is correct and you should get a new rubber
> bumper.
>
> Good troubleshooting!
>
> 73,
> Don W3FPR
>
>
> On 4/15/2014 2:15 AM, TheMG . wrote:
>>
>&g
t a replacement mounting resistor as well.
>
> 73,
> Don W3FPR
>
>
> On 4/13/2014 9:23 PM, TheMG . wrote:
>>
>> Leads under L33 are flush cut as flat as possible and it is mounted on
>> the rubber bumper with half the stem cut off exactly as per the
>> inst
> sound like there is something amiss with L33 - or the soldering of the
> crystals under it. Before mounting a new L33, re-flow the soldering below
> it.
>
> 73,
> Don W3FPR
>
>
> On 4/13/2014 2:45 PM, TheMG . wrote:
>>
>> Well, I messed around with it a bit
an easy place to measure
> it. Then when the BFO shifts frequency, measure it again (do not change
> that filter setting). If the voltage changes, then the problem may be with
> U10 on the control board. Re-solder U10 and RP2 and RP3 to see if that
> stops the change.
>
> On 4/13/20
Well, a few weeks ago I finished assembling and testing my K2 S/N 7520 and
the KPA100, KSB2, K60XV, and K160RX options. All went without any problems
at and have had several successful QSO with it.
However, since then I've been noticing quite severe BFO drift. I have to
re-align the filters using
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