... circuits within a very short time. All the illustrations in the manual are very close simulations of real ... radio,or recorder can be set up and activated by magnet,touch,water,etc,within just two minutes. ... flickering light or a flying disk soaring in the air,etc.The product is so simplified that everyone young or ... ,W-35,W-58,W-39,etc.The number shows the kind of circuits could be constructed. There ...