[Elecraft] RFC1 and RFC2 on KSB2

[Jean-François Ménard]

Hi,

If you scratch a little bit the wire of RFC toroïds on the SSB board... Just
borrow from your wife and put a little bit of "red nail varnish" on the wire
where you scratch it.... I did this and it prevents problem, and it works
!!!

73


-----Message d'origine-----
De : elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] De la part de pa3gyu
Envoyé : 22 janvier 2005 12:01
À : elecraft at mailman.qth.net
Objet : [Elecraft] RFC1 and RFC2 on KSB2


Maybe it's just me, but I found RFC1 and RFC2 on the KSB2 to be very tight 
fits. They are both quite stuck between the crystal and resistor pack. That 
would normally not be a problem, but allthough the manual says to 'try to 
avoid scrapping the wire', one of my RFC's apparently did not come through 
unscraped. After mounting and checking for continuity, I had the good sense 
to check for a short to the crystal can and Bingo! Shorted!

I might have made some more room, if the manual had warned that the crystal 
and the resistor pack should have been soldered as far away from eachother 
as possible. I'm not sure, as this is my first KSB2. I'd rather not start 
messing with them now they are already in there.

If it's just me, no problem, it's fixed.
If it is more common, maybe it would be a good idea to have the manual 
check for shorts between the RFC and the crystal. I'm not sure how long it 
would have taken me to find this one if I hadn't done it right away. From 
the schematic I'd say it would have introduced some weird filter switching 
problems....


Bart de PA3GYU.

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