[Elecraft] K2 BFO L33 Upgrade - L33, BFO Drift, andSSBCarrier Suppression

[George, W5YR]

What is a "sinusoidal" coil? I have #489 and this has me curious . . .
Thanks . . .

73/72, George    
Fairview, TX 30 mi NE of Dallas in Collin county EM13qe   
Amateur Radio W5YR -  the Yellow Rose of Texas
In the 57th year and it just keeps getting better!



> At 11:19 AM 9/21/2002 -0400, Helmut Usbeck wrote:
> >The mod kit is for older K2's that had a sinusoidal coil and the mod is
> >the toroid that is used in all the newer K2's.
> >--Helm.  WB2ADT
> >
> >Kevin Cozens wrote:
> > >
> > > At 11:23 PM 09/21/2002 -0400, WA9GQT wrote:
> > > >      I just noticed that there is a VFO upgrade kit available now
> > along with
> > > >other modifications.  I think Larrry East W1HUE did some initial testing
> > > >about a year ago on this.
> > > [snip]
> > > >      I never did see any modification listed on any of the technical
> > pages,
> > > >eventhough this change is being made to new K2's.  Please enlighten me.
> > >
> > > I can't find information about this on the Elecraft web site. Where did you
> > > see this mentioned?