Introduction
本指南使用9伏电池和数字万用表来测试扬声器和电线的功能。
What you need
Almost done!
用相反的步骤来组装设备
Conclusion
用相反的步骤来组装设备
Cancel: I did not complete this guide.
16 other people completed this guide.
Special thanks to these translators:
en zh
100%
天下有狗狗 is helping us fix the world! Want to contribute?
Start translating ›
4 Comments
what if your speaker is from the late 1920s and has 4 wires?