Amplifier Research 50A220

The Amplifier Research 50A220 is a self-contained, air-cooled solid-state RF power amplifier engineered for broadband applications across EMC testing, laboratory work, and communication systems. It delivers a minimum of 50 watts across 10 kHz to 220 MHz with push-pull MOSFET circuitry optimized for stability and low distortion. The amplifier operates reliably into any load impedance without damage, foldback, or shutdown - handling 100% rated power across all magnitude and phase conditions.

Technical Specifications

• Power Output: 50 watts minimum


• Frequency Range: 10 kHz to 220 MHz


• Input Power: 1.0 milliwatt maximum (typical) for rated output


• Gain Flatness: ±1.5 dB maximum (typical)


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


• Topology: Push-pull MOSFET circuitry


• Cooling: Air-cooled


• RF Connectors: Type N female (standard configuration)

Key Features

• Mismatch-tolerant design - no damage under any load condition


• Enhanced stability and reduced distortion from MOSFET topology


• Thermal and over-current protection


• Modulation capability for AM, FM, and pulse modulation on input signals


• Local and remote control options

Typical Applications

• Electromagnetic Compatibility (EMC) testing


• Laboratory RF amplification


• Communication system signal conditioning


• Broadband signal distribution requiring moderate power levels

Compatibility & Integration The 50A220 accepts 50-ohm input sources and operates into any load configuration. Control interfaces support both local operation and remote command capability.