[Elecraft] KFL1-4 Blue Trimmers

Tue Feb 19 18:09:00 2002

The narrow side of the blue trimmers should be aligned with the flat of
the PCB silk-screen.  This information is part of the KFL1-4 manual
errata, rev. A-1 dated Dec 13, 2001. I'll check to see if this is posted
on our website under the manuals and docs section.

Gary Surrency AB7MY
Elecraft technical support

On Tue, 19 Feb 2002 16:06:19 -0600 Tom Hammond =?iso-8859-1?Q?N=D8SS?=
<[email protected]> writes:
> Well, I've certainly been dead wrong before, John. Guess I should 
> have shut
> up.. <G>
> 
> I'll double check again...
> 
> OK... here's the dope on the question at hand, and THEN we'll 
> actually
> respond to Jerry's question which really DOES (I think) refer to the 
> (FWD &
> REFL) POTS, rather than to the caps!!!
> 
> The trimmer CAPS in the KFL1-4 DO have the rotor of the cap 
> connected to
> the pin at the ROUNDED side of the cap. I just disassembled my K1 
> and check
> them out!
> 
> Now, to answer Jerry's question...
> 
> The two blue-topped trimmer POTs have a LARGE flat and a small flat 
> (on the
> back side).
> The 'flat' referred to in the manual is the LARGE flat.
> 
> 73,
> 
> Tom  N0SS
> 
> W2AGN wrote:
> 
> Could be different with the new trimmers, but I checked one of the 
> old kind I
> had from an unbuilt 2 band module, and the flat side was connected 
> to the
> adjusting screw, therefore ground.
> 
>        John L Sielke   W2AGN
> 
>  >On Tuesday 19 February 2002 15:28, you wrote:
>  > > What I believe John may have forgotten to say was that what he 
> 
> describes is
>  > > the way to determine WHICH of the two pins is to be connected 
> to GROUND...
>  > > however, this appears to NOT be the flat side, but the more 
> ROUNDED side.
>  > > So the flat side would be the pin NOT connected to the 
> adjustment screw of
>  > > the CAPACITOR.
>  > >
>  > > Note - I got this info from comparing scans I made of the 
> (UNPOPULATED) K2
>  > > PC boards, incl. the RF board. I looked at the scan of the top 
> of the 
> board
>  > > and can see that the LEAST NARROW side of the capacitor is 
> connected to
>  > > ground. So the 'flat' side you are looking for is the MOST 
> NARROW side.
>  > >
>  > > 73,
>  > >
>  > > Tom  N0SS
> 
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Gary Surrency AB7MY
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