The CD257 Carrier Demodulator is designed as a plug-in module for the Validyne MC1 Modular System. When this unit is plugged into any position in the Validyne MC1 System Module Case, it provides excitation power for variable reluctance and LVDT transducers. It also provides a dual 10 Vdc output for minimum 15 mV/V input.The CD257 contains a 10 Vdc suppression circuit and a X10 gain amplifier circuit. The suppression circuit is front panel selectable and can be switched in or out. The suppression control is a 10-turn potentiometer mounted on the front panel. Output gain is also front panel selectable and can be switched to X1 or X10.