PHPWIND
HELLOCQ
UID:8037
UID:38953
UID:1199
UID:801
频谱仪都是50欧的,不会用高阻探头吧,示波器才会用高阻探头
找个运放,不知道行不
UID:51651
UID:10889
UID:7685
UID:67767
UID:862
UID:3412
UID:48904