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这里介绍的几套国产晶体三极管,大部分已在各类广播收音机中采用.其中3AX71-73、3AG71-72是一套全玻璃密封小功率PNP型合金结三极管,已使用在凯歌4B3型袖珍式收音机中.3AG71的截止频率大于3兆赫(作中放),3AG72的截止频率大干7兆赫(作混频),3AX71-72作低频放大和末级功率放大.3AG1-4和3AG11-14型高频晶体管使用于美多(27A、
Here are several sets of domestic crystal transistor, most of which have been used in various types of radio radio.Among them 3AX71-73,3 AG71-72 is a set of all-glass sealed low-power PNP alloy junction transistor has been used in the Kay Song 4B3-type pocket 3AG71 cutoff frequency is greater than 3 MHz (for release), 3AG72 cutoff frequency of 7 MHz (for mixing), 3AX71-72 for low-frequency amplification and the final power amplifier .3AG1-4 and 3AG11-14 type High-frequency transistors used in the United States and more (27A,