At the below url is a pic of a homemade bug that I cobbled together several months ago. Yes, it really works, and is a semi-automatic keyer. It's based on a CQ article published many years ago. If anyone wants a copy of this article let me know. Actually calling this thang a bug is a bit of a misnomer...rat would be better. http://www.geocities.com/husbeck/k2bug.jpg Regards, Helm. WB2ADT [K2, 2698]