At 06:54 PM 9/24/2009, .k8dd. wrote...
>At least on the K2 with it's bouncing switches it is not only a known
>problem, especially with the A/B and A=B switches, but you can fairly
>easily
>replace them - I changes out about 20 of them on my two K2s.
K2 switches are readily available from Mouser
AD6XY wrote:
>
> My K3 has sometimes had problems with switches too, but only rarely. My K2
> is much worse in this respect.
>
> Have we found any user applications for the connector on the bottom of the
> panel yet?
>
At least on the K2 with it's bouncing switches it is not only a known
pro
I remember having this problem with an old Advantest Drift-o-matic spectrum
analyser at Uni. The buttons stopped working because the plastic let out
some oils and this coated the gold and stopped the contacts working. I am
not saying this is what has happened to Elecraft, I am sure that problem
fr
David G3UNA, wrote:
> A quick look at the circuit diagram shows that buttons are taken
> from a
> potential divider to CD74HC4051M inputs. These switches (unless I've
> misread the diagram) will therefore take the input current of the
> multiplexer which is typically <1uA. I don't know the spec
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