Ref recent discussion on same I just dug out several new 100 mv 50 amp shunts. $10 each includes first class postage. Lloyd Godsey KK7IZ 1315 N. Udall Circle Mesa, Az 85203 1-480-620-7145 (cell) Please visit my web page http://members.cox.net/kk7iz/kk7iz/index.htm kk7iz at cox.net