I built one on perf board. It's simple, tucks in neatly and works very well. Good luck. Chuck, NN7U -- View this message in context: http://elecraft.365791.n2.nabble.com/W3PFR-N0SS-audio-output-board-for-K2-STILL-wanted-tp7570336p7570415.html Sent from the Elecraft mailing list archive at Nabble.com.