Hi Carl, I see my instructions for the KSB2 are rev D, January 8, 2004 to cover the problems with the RF board CW filter xtal grounding. Regards, Bob. G3VVT K2 #4168 -------------- next part -------------- An HTML attachment was scrubbed... URL: http://mailman.qth.net/pipermail/elecraft/attachments/20040510/2f97b4f3/attachment.htm