Login  Register

RE: RE: K2 BFO Test

Posted by Sverre Holm-2 on Dec 08, 2005; 9:06pm
URL: http://elecraft.85.s1.nabble.com/K2-BFO-Test-tp384371p384374.html

> -----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/
 

_______________________________________________
Elecraft mailing list
Post to: [hidden email]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
 http://mailman.qth.net/mailman/listinfo/elecraft   

Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com