- SR555 - Stanford Research Systems

sr555The SR555 is a low-noise, hh-bandwidth, fixed-gain current (trans-impedance) amplifier desned to work with SRS lock-in amplifiers. Current amplifiers provide gain closeThe SRA555 is a five string SRA series solid body electric bass model introduced by for 2012. It was produced in China as part of the Standard . The SRA555 features a double