Have two. Both with Clifton Labs preamp/isolation board. In die cast box. Been used on my K3 VFO A and VFO B. $75 each including priority mail. Brian/K3KO ----- No virus found in this message. Checked by AVG - www.avg.com Version: 10.0.1424 / Virus Database: 2411/4936 - Release Date: 04/14/12