Signal conditioners and Power sources
Brüel & Kjær 2693 4-channel, with integrators on 2 channels
PCB 483C15 8-channel Signal conditioner
Kistler signal conditioner for charge-type transducer
Brüel & Kjær 1704 2-channel Battery-Powered
CCLD Signal Conditioner
GWinstek GPS-3030D DC power source