[Elecraft] IMPORTANT CORRECTION: K1 RF Board Trimmer Caps

[Don Wilhelm]

The flat side on the board is indeed the grounded side - but as I 
mentioned, you cannot see the flat on the silkscreen any more, you will 
have to follow the diagram in the manual.  The flat sides are not in the 
same relative orientation - in each row of 4 there are 2 with the flat 
to the left and 2 with the flat to the right.

73,
Don W3FPR

On 12/24/2012 10:43 AM, Bruce Beford wrote:
> IMPORTANT ADDENDUM/CORRECTION TO MY PREVIOUS POST ON THIS.
>
> I wrote:
>> Take your ohmmeter and measure from the center, where the adjustment tool
>> contacts the capacitor. Measure to each of the two contacts, and find the
>> one that is shorted to the adjustment slot. That is the side you want to
>> be grounded after install. Next, look at the board, and see which hole for
>> either C1, C2, C5, C6, CA, CB, CE, or CH are connected to the ground plane
>> of the board. That is hole that you want the lead that you just identified
>> to end up in. The trimmers are all oriented the same way.
> The trimmers DO NOT all mount the same way! You must look at the assembly
> instructions for the KFL1_4 board, and take note of how the trimmers mount.
> On my manual, it's page 17. Compare the drawing with the trimmers you have,
> to determine the proper orientation of each, once you know which side on
> yours corresponds to the "flat" side in the drawing. Again, you need to
> determine which side of the cap is connected to the center adjustment screw.
> That is the side you want to be grounded. Compare that with the board, and
> see if that corresponds to the "flat" side on the original trimmers, or the
> other side. I don't have a board here to check. Once you know how your
> trimmers compare to the original ones pictured in the (fig 11), you can then
> orient all your trimmers accordingly.
>
> Sorry for the mis-information in my original reply, and good luck,
> Bruce, N1RX
>
>
>
>
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