The Model 503 L is a general purpose broadband amplifier capable of more than 3 watts of linear power output when driven by any laboratory signal or sweep generator from 2 to 510 MHz. An ultra linear Class A design, the 503L will “boost” the output of any signal source by a flat 40 dB (+ 1.5 dB) and provide its full forward output power into any load impedance (from an open to a short circuit). Its output is a faithful reproduction of the input waveform for AM, FM, SSB, CATV, pulse and other complex modulations. Although specified only over the 2 to 510 MHz frequency range, full power output is typically available from 1.6 to 540 MHz. The use of microwave transistors on thin film substrates, microstrip circuitry, and plug-in modules make the 503L both reliable and easy to service. An integral power supply and cooling system permit operation over a wide range of temperature and AC line conditions.