With the Elecraft upgrade kit shipped to the UK costing over $20 for a 100 uH choke and two surface mount resistors (yes I know there are 4 in the kit and two axial ones), I wound a choke and used two surface mount resistors from my spares/repair kit. For anyone who is struggling to justify buying a slim RF choke to fit between the K3 RF board and the cover plate (needs to be no thicker than 0.275"), I made a 100 uH choke using 15 turns of enamelled copper wire on a FT50-43 core and covered it with clear heatshrink. I cannot really say the audio sounds any better on my bookshelf speakers after changing the choke, but at least it didn't cost much...
73 Dave, G4AON K3/100 #80 _______________________________________________ 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
