The Model 500A 100A is a self-contained, air cooled, broadband, completely solid state Radio Frequency (RF) amplifier designed for applications where instantaneous bandwidth and high gain are required. Push-pull circuitry is utilized in all high-power stages in the interest o f lowering distortion and improving stability. The M odel 500A100A, when used with an RF sweep generator, w ill provide a m inim um o f 500 w atts o f sw ept power. Special features incorporated into the Model 500A 100A include the following: • A front panel 4-line vacuum fluorescent display (VFD) for m onitoring am plifier status and forward or reflected output power. • A utom atic Level Control (ALC), which can be controlled by internal circuits or by an external input with front panel control o f the ALC Threshold. • Pulse input capability. • RF output level protection, • An internal RF detector, w hich provides an output for use in self-testing or operational modes. • A front panel gain control for adjusting the am plifier’s gain when operating the am plifier .in the “M anual” mode. • Provisions are m ade for rem ote control o f all operating functions of the am plifier via IEEE-488 and R S-232 com puter protocols. Protection is provided by DC current and voltage sensing o f each o f the final RF am plifier modules. Housed in a stylish, contem porary cabinet, the M odel 500A100A provides readily available RF power for typical applications such as RF susceptibility testing, antenna and component testing, wattm eter calibration, and use as a driver for higher power amplifiers.