IFI T251-500A TWT Amplifier 1 GHz - 2.5 GHz, 500 Watt

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The IFI T251-500A TWT Amplifier is a 1 GHz - 2.5 GHz, 500 W RF power amplifier designed for precompliance testing in accordance with FCC Part 15. The required voltages and currents to operate IFI T251-500A TWT amplifiers  are provided by the Helix, Collector and Filament supplies. The Helix supply provides the negative high voltage potential between TWT Cathode and ground, while the Collector supply provides the high voltage potential between the TWT Cathode and Collector. The Filament supply provides the Heater voltage and floats at high voltage Cathode potential. In some tubes, a Grid element is used to switch the TWT beam on and off.