89(R) SR 555 - Introduced version

sr555The SR555 and SR556 are ideal low‐noise current preamplifiers for SRS’ lock‐in amplifiers, and can also be used for any other small current detection purposes.Below you will find brief information for current preamplifier SR555, current preamplifier SR556. These devices are low-noise current preamplifiers desned to be used with Stanford