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TL-6902子母机手机充电座中所用的小型变压器市场上很难买到,笔者在其损坏后,用常见的1.5W双12V无绳电话变压器(Randix 8320中周)代换,做法简单且效果良好,代换时须将原桥式整流电路改为全波整流电路。具体做法是:拆除原变压器,将好的1.5W双12V变压器次级线头所焊位置处,中间抽头与原整流电路中的地相连,再把原桥式整流电路中正极接地的两只二极管及与其并连的瓷介电容拆除即可。
Small transformers used in TL-6902 base phone cradle are difficult to buy on the market. After the damage, the author replaces them with common 1.5W dual 12V cordless phone transformers (week of Randix 8320), the method is simple and works well , Replace the original bridge rectifier circuit to full-wave rectifier circuit. The specific approach is: remove the original transformer, the good 1.5W dual 12V transformer secondary wire head welding position, the middle tap with the original rectifier circuit is connected, and then the original bridge rectifier circuit is grounded in the two diodes and With its porcelain capacitor can be removed in conjunction.