[Elecraft] Re: BFO Drift (and a solution for it)

[Bob Nielsen]

I haven't seen the announcement yet, but the mod kit shows up on the
Elecraft web site (I ordered mine last night, $7.00).

73,
Bob N7XY

On Sun, Nov 03, 2002 at 10:25:11PM -0800, Wayne Burdick wrote:
> "David A. Belsley" wrote:
> > 
> > Wayne:
> >   I'm kinda confused.  L33 in my K2 is not a toroid, but a 39uH solenoidal,
> > shielded inductor. I believe there may have been a mod to replace this with
> > a toroid, but I never did.  Does the solenoidal inductor have the same
> > problem relative to drift?  Would it be better to switch this out with your
> > modification kit when it becomes available?
> 
> Hi David,
> 
> The new T44-7 toroid is a factor of 8 more stable than either the old T44-8 or the
> original solenoidal inductor. It also has less leakage, so it's a win-win solution. On the
> other hand, it's costing us a lot to get them pre-wound, but we feel that it's worth it to
> reduce the drift for those who have been inconvenienced by it.
> 
> We'll announce the mod kit price and availability next week.
> 
> 73,
> Wayne
> N6KR
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-- 
Bob Nielsen, N7XY                          n7xy@n7xy.net
Bainbridge Island, WA  
IOTA NA-065, USI WA-028S