Conoptics, Inc. has introduced the Model 275 linear, high voltage differential amplifier designed to be used with various Conoptics electro-optic modulators. The output of the amplifier is designed to drive the modulator configured as a lumped capacitor. The amplifier is capable of delivering in excess of 275 volts peak to peak into a capacitive load from DC through 8 to 10 MHz depending on modulator total capacitance. The system may also be used as a high frequency electro-optic beam deflector driver, for mastering a variety of different format DVD and CD ROM applications.