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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