100K is the correct value, as shown in the Rev D manual schematic. With 39K the system normally works, but it causes some voltages within the KPA100 to rise above that considered safe for some components.
Ron AC7AC -----Original Message----- The latest KPA-100 schematic (dated 9/25/06) shows R4 across the X1 crystal is 100K. A previous mod shows R4 was changed to 39K. My amp has been changed to the 39K value. Which value is correct? Thanks. Roy Morris W4WFB _______________________________________________ Elecraft mailing list Post to: [email protected] 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

