Eric & All: I captured that grid block "bug" CW sound of your antique transmitter on 474 kHz a short while ago... http://www.youtube.com/watch?v=ULiDgEeJbBA Also downloadable from photobucket here http://s1296.photobucket.com/user/wa3tts/media/MVI_3956_zps76438230.mp4.html 73, Mike wa3tts