The picture shows a Gould preamplifier system , consisting of a 19“ top desk case with an included power supply and 8 DC Bridge Amplifier type 13-G4615-30. Ideal compatible with the Gould TA2000 recorder . Delivered with the “3000 recorder interface”
Features:
Range: 25….10000 µinches / inch
Calibration and adjustments on frontpanel
Bridge extension selectable
Output lowpass filter selectable
Adjustable shunt calibration
Calibrated zero supression
This position is offered only TOGETHER with the TA 2000 recorder, not as a single device