为了开发青少年的智力教育,中央电视台、上海电视台及全国其它地方电视台经常举办智力竞赛电视节目。思维敏捷的青少年不仅为引人入胜的竞赛题目所吸引,而且对准确无疑的抢答判定原理颇感兴趣。这里,向广大无线电爱好者推荐一种实用的抢答鉴别器,这种鉴别器线路简单,制作容易,使用方便,并具有声色并茂,判断精确的特点,值得有兴趣的读 In order to develop intellectual education for young people, CCTV, Shanghai TV and other local television stations in the country often hold quiz shows. Agile teens are not only drawn to engaging competition topics, but are also interested in the precise principle of responsiveness. Here, to recommend to the majority of radio enthusiasts a practical answer to the discriminator, this discriminator circuit is simple, easy to make, easy to use, and has the sensual and accurate, accurate features, it is interesting to read