[Elecraft] C9 trimmer cap on the KAT1

[Don Wilhelm]

  Mike,

If you look carefully at the long side of those capacitors, you will 
note that that side has rounded corners - the narrow other end has sharp 
anglular transitions from the end to the sides - so the narrow end is 
flat, while the larger end is "rounded".

None-the-less, it does not matter much in that particular application - 
both ends of that capacitor are isolated from ground and the trimmer 
must be adjusted with a fully insulated (non-metallic) tool if you are 
to achieve the correct setting.

Adjust it first with a non-metallic tool, and if you still cannot find a 
null point, look for the problem some other place than the trimmer (the 
windings of the bi-filar wound toroid are the most probable problem point.

73,
Don W3FPR

On 5/23/2011 11:23 AM, wf8o wrote:
> I have possibly installed this trimmer cap with the wrong orientation. The
> instructions say to orient it
> with the "flat side" to the left.  The trimmer is of the newer design, as
> the blue ones used on the KFl1-4,  It has two "flat sides".  I  installed it
> with the wider "flat side" to the left. Does any one know the correct
> orientation?  Does it really matter, anyway? I am ready to install the atu
> inside my K1.  Please advise.
>
>