目前 ,在全国中小城市中 ,广播电台使用的中波发射机大多数延续几十年的电子管形式。此类型发射机指标不稳定 ,管子型号繁多 ,费电易老化 ,管型难配 ,维护费用高。克服这些缺点和不足 ,又避免大量资金的投入 ,对此类机型的改造是各台很好的选择。我台自行研究、设计的利用大功 At present, the majority of medium-wave transmitters used by radio stations in small and medium-sized cities in the country have been in the form of electronic tubes that last for decades. This type of transmitter is not stable indicators, a wide range of models, easy to aging fee, difficult to match the tube, high maintenance costs. To overcome these shortcomings and deficiencies, but also to avoid a lot of money invested, the transformation of such models is a good choice for all. My own research, design and use of great power