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想问下TL072 TL072A TL072B TL072C 这些有什么区别，主要用来组3运放，做仪器仪表前级信号放大用。

user4664031
Prodigy 70 points
Other Parts Discussed in Thread: TL072B, TL072A, TL072

想问下TL072 TL072A TL072B TL072C 这些有什么区别，主要用来组3运放，做仪器仪表前级信号放大用。