[Elecraft] K2 BFO Test

Sverre Holm svholm3 at broadpark.no
Thu Dec 8 16:06:43 EST 2005


> -----Original Message-----
> 
> The preferred method of padding the BFO capacitors is to 
> maintain the ratio between C173 and C174 by paralleling them 
> with capacitors.  A single capacitor from the junction to 
> ground will be in parallel with the series combination of 
> C173 and the varactor D38 and could make the BFO less stable 
> than it should be.
> 

Don,

How about a single capacitor (1-4 pF) from the junction of the crystals and
the L33 inductor as in
http://www.ac6rm.net/mailarchive/html/elecraft-list/2005-08/msg00562.html?
Does that create potential stability problems also?

I've got this link on my K2 mods page and just wanted to make sure I can
recommend it and keep it there. I have never had any problems with BFO range
myself so I have no personal experience with this myself.

73

Sverre
LA3ZA
http://www.qslnet.de/la3za/
 



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