制作胆机时,有人会忽略一个重要问题,即电子管的高压延时间题。为了降低电源变压器的功耗,胆机常采用半导体二极管作为高压整流元件。在电子管预热期间。其阴极由于冷发射而易受损害以致影响电子管的使用寿命。为此,胆机加接高压延时电路是十分必要的。一般胆机的高压延时电路可以设计得简单一些, When making a tube amplifier, someone will ignore an important issue, that is, the high voltage tube delay problem. In order to reduce the power transformer power, the tube often uses semiconductor diodes as high-voltage rectifier. During tube preheating. Its cathode is easily damaged due to cold emission and therefore affects the service life of the electron tube. To this end, the amplifier plus high-voltage delay circuit is very necessary. General amplifier high-voltage delay circuit can be designed to be simpler,