Magnetic Immunity Amp Features Auto Ranging Input

The Model 350AH1, a 350W, 1-MHz magnetic immunity amplifier, employs auto-ranging ac-input circuitry that automatically accepts voltages from 90 to 260 Vac in the 47 Hz to 63 Hz frequency range. Claiming to exhibit a very low output impedance, the amplifier's primary function is susceptibility testing for magnetic and audio frequency tests in MIL-STD-461D/E, D0160D/E. Other applications include a variety of automotive test standards. The unit is employable as an ac-voltage source for Wattmeter calibration and as a driver for higher-power amplifiers. For further information and price, call AR RF/MICROWAVE INSTRUMENTATION, Souderton, PA. (800) 933-8181.