传声器管的高温反偏试验

High Temperature Reverse Bias Test of Microphone Transistor

近年来，驻极体传声器发展很快，对于传声器管的电参数要求更高，尤其高温反偏试验更为严苛。多年来，对此项试验发现与以前有关资料中的结果存在某些差异，给予补充说明。

For these year, the development speed of the electret microphones is rapid. so, the electrial parameter of the microphone transistors will be asked higher, and high tempra ture test will be particularly more strict. For these years, the results of the test is different from past years, the paper will give a additional remarks.