Ken is right about Heathkit requiring some real electrical knowledge & a talent for soldering!! Dad was among being a scale pilot since the ripe old age of 16, an electrical engineer after he got out of the Airforce at the end of the Korean war. That is where he spent his working career, as an electrical engineer. So for him these Heathkits were a walk in the park. I on the other hand would not even attempt one. I know enough about electricity, to know better than to mess with it!