Amplifier Research 700A Ultrasonic Amplifier 10 kHz - 250 kHz

Amplifier Research 700A Ultrasonic Power Amplifier
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The Amplifier Research 700A Ultrasonic Power Amplifier is completely solid state and contains no mechanical circuit breakers or relays. Even its over-temperature sensor is a solid state device. Designed for severe industrial applications, the 700A amplifier is protected from damage which might be caused by excessive VSWR, high instantaneous line current, excessive output power or over-temperature operation. A built-in line delay and zero-crossing turn-on reduce current inrush to prolong component life. Power supply voltage regulation is used to remove noise and output fluctuations. A directional wattmeter and front panel selector switch provide convenient measurement of the forward power from the amplifier and reverse power reflected by the load. A non-linear meter scale allows extremely sensitive tuning of the load simply by adjusting for minimum reflected power.



Power Output into 50Ω Maximum Up to 700 Watts
Linear 250 watts @ less than 1dB gain compression
Frequency 10 kHz to 250 kHz useful range from 8 kHz to 450 kHz at reduced gain
Gain 60 dB minimum
Input Attenuator Continuously adjustable over greater than an 18 dB range
Input Impedance 50Ω nominal
Output Impedance (Switch Selectable) 12.5, 25, 50, 100, 150, 200, 400, 600, 1000Ω nominal
Connectors Type BNC
Power Meter Directional power meter and front panel selector switch allows separate measurement of the forward power leaving the amplifier and the power reflected by the load
Primary Power 115 VAC, 50/60 Hz, 15 Amp