Amplifier Research 150A100A

The Amplifier Research 150A100A is a solid-state, broadband RF amplifier engineered for laboratory and specialized testing applications demanding wide instantaneous bandwidth, high gain, and moderate power output. Built on push-pull MOSFET circuitry, it delivers 150 watts rated power with exceptional mismatch tolerance - operating without damage or oscillation into any load impedance. The amplifier provides 52 dB minimum gain with 18 dB adjustment range and accepts maximum 1.0 mW input for rated output.

Frequency coverage spans 10 kHz to 100 MHz with 1.5 dB maximum flatness.

Technical Specifications

• Frequency Range: 10 kHz to 100 MHz


• Rated Power Output: 150 watts


• Minimum Gain: 52 dB


• Gain Adjustment Range: 18 dB minimum


• Input Impedance: 50 ohms, VSWR 1.5:1 maximum


• Output Impedance: 50 ohms, VSWR 2.0:1 maximum


• Input for Rated Output: 1.0 milliwatt maximum


• Flatness: 1.5 dB maximum


• Circuitry: Push-pull MOSFET


• Cooling: Air cooled

Key Features

• 100% mismatch tolerance without foldback protection - operates into any source and load impedance without oscillation or damage


• RF input leveling circuit protects against overdrive conditions exceeding 0 dBm


• Over-temperature protection removes DC voltage to RF amplifier stages


• Power supply fault protection with front-panel status indication


• Digital display reports operate status and fault conditions


• Safety interlock circuit interfaces with external switches to prevent unintended operation


• Local and remote control via front-panel gain adjustment and digital command interface

Interfaces & Control Remote operation supported through IEEE-488 (GPIB), RS-232 (asynchronous, full duplex), with optional fiber optic, USB, and Ethernet connectivity. Local/remote selector switch ensures positive control authority. Jumper plug provided for safety interlock bypass when external switch integration is not required.

Typical Applications RF susceptibility testing, antenna and component characterization, watt meter calibration, and driver amplifier service for higher-power systems.