The ZHL-100W-251+ is a Class A, high-power amplifier providing 100W saturated power over the 50 to 250 MHz band, ideal for a variety of high-power test setups as well as applications including communications, HAM bands and more. The ruggedly-designed amplifier provides unconditional stability and built-in self- protection against overheating. It is capable of withstanding short and open circuits at output while continu- ously delivering 100W of power. Housed in a rugged aluminum alloy case measuring 3.25 x 6.0 x 1.13″, the unit features SMA connectors and an optional heat sink and fan attachment for cooling. High Power Amplifier Coaxial ZHL-100W-251-S+ ZHL-100W-251XS+ ZHL-100W-251-S+ ZHL-100W-251XS+