Do-It-Yourself Digital Trainer Soldering Kit for Electrical Engineering Prototyping and Experimentation (Intermediate Skill Level)NOTE: Assembly with a soldering iron is required (solder and soldering iron are not included) This Digital Trainer comes in Do It Yourself kit form once assembled, it provides all the functions necessary for digital experimentation and prototyping The DT3's features include 8 binary switches (4 buffered), 8 LED indicators, a clock conditioning circuit, pulse switch with 0 to + 5V or + 5V to 0V output, and 7 board mounted tie blocks for easy circuit