The B1000 10-12 meter features 8 HG2SC2879 transistors. This unit is available in both class c as well as biased for ssb. It can be built for use on 110v or 220v (110v requires 20 amp service). Built in temperature display to keep an eye on your investment. Recommended 250w pep max drive. Please allow 3-6 weeks from order to delivery.