I have 2 used 70cm preamps for sale, one working and one not. Mirage KP-1 (working) in-shack w/manual ------$100 shipped ARR SP432VDG (not working & was damaged with too much RF which means its about a $22 repair from ARR) -----$50 shipped If I don't sell them soon I'll list them on eBay which I'd rather avoid. Rick W2JAZ