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sr555The SR555 is a low-noise, hh-bandwidth, fixed-gain current (trans-impedance) amplifier desned to work with SRS lockin amplifiers. Current amplifiers provide gain close toSR555 Jangan lewatkan kesempatan emas setiap hari! Raih peluang dan nikmati hadiah luar biasa dan ajak temanmu untuk bergabung SR 555!